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1. Homologous recombination DNA repair defects in PALB2-associated breast cancers

Author

Li, A. (Anqi), Geyer, F. C. (Felipe C.), Blecua, P. (Pedro), Lee, J. Y. (Ju Youn), Selenica, P. (Pier), Brown, D. N. (David N.), Pareja, F. (Fresia), Lee, S. S. (Simon S. K.), Kumar, R. (Rahul), Rivera, B. (Barbara), Bi, R. (Rui), Piscuoglio, S. (Salvatore), Wen, H. Y. (Hannah Y.), Lozada, J. R. (John R.), Gularte-Merida, R. (Rodrigo), Cavallone, L. (Luca), Rezoug, Z. (Zoulikha), Nguyen-Dumont, T. (Tu), Peterlongo, P. (Paolo), Tondini, C. (Carlo), Terkelsen, T. (Thorkild), Ronlund, K. (Karina), Boonen, S. E. (Susanne E.), Mannerma, A. (Arto), Winqvist, R. (Robert), Janatova, M. (Marketa), Rajadurai, P. (Pathmanathan), Xia, B. (Bing), Norton, L. (Larry), Robson, M. E. (Mark E.), Ng, P.-S. (Pei-Sze), Looi, L.-M. (Lai-Meng), Southey, M. C. (Melissa C.), Weigelt, B. (Britta), Soo-Hwang, T. (Teo), Tischkowitz, M. (Marc), Foulkes, W. D. (William D.), Reis-Filho, J. S. (Jorge S.), Aghmesheh, M. (Morteza), Amor, D. (David), Andrews, L. (Leslie), Antill, Y. (Yoland), Balleine, R. (Rosemary), Beesley, J. (Jonathan), Blackburn, A. (Anneke), Bogwitz, M. (Michael), Brown, M. (Melissa), Burgess, M. (Matthew), Burke, J. (Jo), Butow, P. (Phyllis), Caldon, L. (Liz), Campbell, I. (Ian), Christian, A. (Alice), Clarke, C. (Christine), Cohen, P. (Paul), Crook, A. (Ashley), Cui, J. (James), Cummings, M. (Margaret), Dawson, S.-J. (Sarah-Jane), De Fazio, A. (Anna), Delatycki, M. (Martin), Dobrovic, A. (Alex), Dudding, T. (Tracy), Duijf, P. (Pascal), Edkins, E. (Edward), Edwards, S. (Stacey), Farshid, G. (Gelareh), Fellows, A. (Andrew), Field, M. (Michael), Flanagan, J. (James), Fong, P. (Peter), Forbes, J. (John), Forrest, L. (Laura), Fox, S. (Stephen), French, J. (Juliet), Friedlander, M. (Michael), Ortega, D. G. (David Gallego), Gattas, M. (Michael), Giles, G. (Graham), Gill, G. (Grantley), Gleeson, M. (Margaret), Greening, S. (Sian), Haan, E. (Eric), Harris, M. (Marion), Hayward, N. (Nick), Hickie, I. (Ian), Hopper, J. (John), Hunt, C. (Clare), James, P. (Paul), Jenkins, M. (Mark), Kefford, R. (Rick), Kentwell, M. (Maira), Kirk, J. (Judy), Kollias, J. (James), Lakhani, S. (Sunil), Lindeman, G. (Geoff), Lipton, L. (Lara), Lobb, L. (Lizz), Lok, S. (Sheau), Macrea, F. (Finlay), Mane, G. (Graham), Marsh, D. (Deb), Mclachlan, S.-A. (Sue-Anne), Meiser, B. (Bettina), Milne, R. (Roger), Nightingale, S. (Sophie), O'Connell, S. (Shona), Pachter, N. (Nick), Patterson, B. (Briony), Phillips, K. (Kelly), Saleh, M. (Mona), Salisbury, E. (Elizabeth), Saunders, C. (Christobel), Saunus, J. (Jodi), Scott, C. (Clare), Scott, R. (Rodney), Sexton, A. (Adrienne), Shelling, A. (Andrew), Simpson, P. (Peter), Spigelman, A. (Allan), Spurdle, M. (Mandy), Stone, J. (Jennifer), Taylor, J. (Jessica), Thorne, H. (Heather), Trainer, A. (Alison), Trench, G. (Georgia), Tucker, K. (Kathy), Visvader, J. (Jane), Walker, L. (Logan), Wallis, M. (Mathew), Williams, R. (Rachael), Winship, I. (Ingrid), Wu, K. (Kathy), Young, M. A. (Mary Anne), Li, Anqi, Geyer, Felipe C, Blecua, Pedro, Lee, Ju Youn, Duijf, Pascal, Reis-Filho, Jorge S, Li, Anqi [0000-0003-1409-1858], Kumar, Rahul [0000-0002-6927-5390], Rivera, Barbara [0000-0001-9434-6288], Piscuoglio, Salvatore [0000-0003-2686-2939], Lozada, John R. [0000-0001-8953-4110], Gularte-Mérida, Rodrigo [0000-0002-4383-2523], Peterlongo, Paolo [0000-0001-6951-6855], Robson, Mark E. [0000-0002-3109-1692], Looi, Lai-Meng [0000-0001-8325-0117], Foulkes, William D. [0000-0001-7427-4651], Apollo - University of Cambridge Repository, Lozada, John R [0000-0001-8953-4110], Robson, Mark E [0000-0002-3109-1692], and Foulkes, William D [0000-0001-7427-4651]

Subjects
0301 basic medicine, IMPACT, DNA repair, PALB2, gene frequency, lcsh:RC254-282, RECOMMENDATIONS, Germline, Article, Loss of heterozygosity, 03 medical and health sciences, 0302 clinical medicine, Germline mutation, breast cancer, Breast cancer, 631/67/68, MUTATIONAL PROCESSES, Cancer genomics, Medicine, Pharmacology (medical), Radiology, Nuclear Medicine and imaging, Allele, AMERICAN SOCIETY, Cancer genetics, Genetics, Science & Technology, Massive parallel sequencing, LANDSCAPE, business.industry, 631/67/1347, lcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogens, 692/699/67/69, BRCA2, GENE, 3. Good health, 030104 developmental biology, Oncology, gene inactivation, 030220 oncology & carcinogenesis, kConFab Investigators, Homologous recombination, business, Life Sciences & Biomedicine, CLINICAL ONCOLOGY/COLLEGE
Abstract

Mono-allelic germline pathogenic variants in the Partner And Localizer of BRCA2 (PALB2) gene predispose to a high-risk of breast cancer development, consistent with the role of PALB2 in homologous recombination (HR) DNA repair. Here, we sought to define the repertoire of somatic genetic alterations in PALB2-associated breast cancers (BCs), and whether PALB2-associated BCs display bi-allelic inactivation of PALB2 and/or genomic features of HR-deficiency (HRD). Twenty-four breast cancer patients with pathogenic PALB2 germline mutations were analyzed by whole-exome sequencing (WES, n = 16) or targeted capture massively parallel sequencing (410 cancer genes, n = 8). Somatic genetic alterations, loss of heterozygosity (LOH) of the PALB2 wild-type allele, large-scale state transitions (LSTs) and mutational signatures were defined. PALB2-associated BCs were found to be heterogeneous at the genetic level, with PIK3CA (29%), PALB2 (21%), TP53 (21%), and NOTCH3 (17%) being the genes most frequently affected by somatic mutations. Bi-allelic PALB2 inactivation was found in 16 of the 24 cases (67%), either through LOH (n = 11) or second somatic mutations (n = 5) of the wild-type allele. High LST scores were found in all 12 PALB2-associated BCs with bi-allelic PALB2 inactivation sequenced by WES, of which eight displayed the HRD-related mutational signature 3. In addition, bi-allelic inactivation of PALB2 was significantly associated with high LST scores. Our findings suggest that the identification of bi-allelic PALB2 inactivation in PALB2-associated BCs is required for the personalization of HR-directed therapies, such as platinum salts and/or PARP inhibitors, as the vast majority of PALB2-associated BCs without PALB2 bi-allelic inactivation lack genomic features of HRD.

Published
2019
Full Text
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2. Homologous recombination DNA repair defects in PALB2-associated breast cancers.

Author

Duijf P., Kentwell M., Kirk J., Kollias J., Lakhani S., Lindeman G., Lipton L., Lobb L., Lok S., Macrea F., Mann G., Marsh D., McLachlan S.-A., Meiser B., Milne R., Nightingale S., O'Connell S., Pachter N., Patterson B., Phillips K., Saleh M., Salisbury E., Saunders C., Saunus J., Scott C., Scott R., Sexton A., Shelling A., Simpson P., Spigelman A., Spurdle M., Stone J., Taylor J., Thorne H., Trainer A., Trench G., Walker L., Wallis M., Williams R., Winship I., Wu K., Young M.A., Rezoug Z., Nguyen-Dumont T., Peterlongo P., Tondini C., Terkelsen T., Ronlund K., Boonen S.E., Mannerma A., Winqvist R., Janatova M., Rajadurai P., Xia B., Norton L., Robson M.E., Ng P.-S., Looi L.-M., Southey M.C., Weigelt B., Soo-Hwang T., Tischkowitz M., Foulkes W.D., Reis-Filho J.S., Harris M., Tucker K., Visvader J., Li A., Geyer F.C., Blecua P., Lee J.Y., Selenica P., Brown D.N., Pareja F., Lee S.S.K., Kumar R., Rivera B., Bi R., Piscuoglio S., Wen H.Y., Lozada J.R., Gularte-Merida R., Cavallone L., Aghmesheh M., Amor D., Andrews L., Antill Y., Balleine R., Beesley J., Blackburn A., Bogwitz M., Brown M., Burgess M., Burke J., Butow P., Caldon L., Campbell I., Christian A., Clarke C., Cohen P., Crook A., Cui J., Cummings M., Dawson S.-J., De Fazio A., Delatycki M., Dobrovic A., Dudding T., Edkins E., Edwards S., Farshid G., Fellows A., Field M., Flanagan J., Fong P., Forbes J., Forrest L., Fox S., French J., Friedlander M., Ortega D.G., Gattas M., Giles G., Gill G., Gleeson M., Greening S., Haan E., Hayward N., Hickie I., Hopper J., Hunt C., James P., Jenkins M., Kefford R., Duijf P., Kentwell M., Kirk J., Kollias J., Lakhani S., Lindeman G., Lipton L., Lobb L., Lok S., Macrea F., Mann G., Marsh D., McLachlan S.-A., Meiser B., Milne R., Nightingale S., O'Connell S., Pachter N., Patterson B., Phillips K., Saleh M., Salisbury E., Saunders C., Saunus J., Scott C., Scott R., Sexton A., Shelling A., Simpson P., Spigelman A., Spurdle M., Stone J., Taylor J., Thorne H., Trainer A., Trench G., Walker L., Wallis M., Williams R., Winship I., Wu K., Young M.A., Rezoug Z., Nguyen-Dumont T., Peterlongo P., Tondini C., Terkelsen T., Ronlund K., Boonen S.E., Mannerma A., Winqvist R., Janatova M., Rajadurai P., Xia B., Norton L., Robson M.E., Ng P.-S., Looi L.-M., Southey M.C., Weigelt B., Soo-Hwang T., Tischkowitz M., Foulkes W.D., Reis-Filho J.S., Harris M., Tucker K., Visvader J., Li A., Geyer F.C., Blecua P., Lee J.Y., Selenica P., Brown D.N., Pareja F., Lee S.S.K., Kumar R., Rivera B., Bi R., Piscuoglio S., Wen H.Y., Lozada J.R., Gularte-Merida R., Cavallone L., Aghmesheh M., Amor D., Andrews L., Antill Y., Balleine R., Beesley J., Blackburn A., Bogwitz M., Brown M., Burgess M., Burke J., Butow P., Caldon L., Campbell I., Christian A., Clarke C., Cohen P., Crook A., Cui J., Cummings M., Dawson S.-J., De Fazio A., Delatycki M., Dobrovic A., Dudding T., Edkins E., Edwards S., Farshid G., Fellows A., Field M., Flanagan J., Fong P., Forbes J., Forrest L., Fox S., French J., Friedlander M., Ortega D.G., Gattas M., Giles G., Gill G., Gleeson M., Greening S., Haan E., Hayward N., Hickie I., Hopper J., Hunt C., James P., Jenkins M., and Kefford R.

Abstract

Mono-allelic germline pathogenic variants in the Partner And Localizer of BRCA2 (PALB2) gene predispose to a high-risk of breast cancer development, consistent with the role of PALB2 in homologous recombination (HR) DNA repair. Here, we sought to define the repertoire of somatic genetic alterations in PALB2-associated breast cancers (BCs), and whether PALB2-associated BCs display bi-allelic inactivation of PALB2 and/or genomic features of HR-deficiency (HRD). Twenty-four breast cancer patients with pathogenic PALB2 germline mutations were analyzed by whole-exome sequencing (WES, n = 16) or targeted capture massively parallel sequencing (410 cancer genes, n = 8). Somatic genetic alterations, loss of heterozygosity (LOH) of the PALB2 wild-type allele, large-scale state transitions (LSTs) and mutational signatures were defined. PALB2-associated BCs were found to be heterogeneous at the genetic level, with PIK3CA (29%), PALB2 (21%), TP53 (21%), and NOTCH3 (17%) being the genes most frequently affected by somatic mutations. Bi-allelic PALB2 inactivation was found in 16 of the 24 cases (67%), either through LOH (n = 11) or second somatic mutations (n = 5) of the wild-type allele. High LST scores were found in all 12 PALB2-associated BCs with bi-allelic PALB2 inactivation sequenced by WES, of which eight displayed the HRD-related mutational signature 3. In addition, bi-allelic inactivation of PALB2 was significantly associated with high LST scores. Our findings suggest that the identification of bi-allelic PALB2 inactivation in PALB2-associated BCs is required for the personalization of HR-directed therapies, such as platinum salts and/or PARP inhibitors, as the vast majority of PALB2-associated BCs without PALB2 bi-allelic inactivation lack genomic features of HRD.Copyright © 2019, The Author(s).

Published
2019

3. Publisher Correction: Homologous recombination DNA repair defects in PALB2-associated breast cancers (npj Breast Cancer, (2019), 5, 1, (23), 10.1038/s41523-019-0115-9).

Author

Cummings M., Walker L., Wallis M., Williams R., Winship I., Wu K., Young M.A., Rezoug Z., Nguyen-Dumont T., Peterlongo P., Tondini C., Terkelsen T., Ronlund K., Boonen S.E., Mannerma A., Winqvist R., Janatova M., Rajadurai P., Xia B., Norton L., Robson M.E., Ng P.-S., Looi L.-M., Southey M.C., Weigelt B., Soo-Hwang T., Tischkowitz M., Foulkes W.D., Reis-Filho J.S., Li A., Geyer F.C., Blecua P., Lee J.Y., Selenica P., Brown D.N., Pareja F., Lee S.S.K., Kumar R., Rivera B., Bi R., Piscuoglio S., Wen H.Y., Lozada J.R., Gularte-Merida R., Cavallone L., Aghmesheh M., Amor D., Andrews L., Antill Y., Balleine R., Beesley J., Blackburn A., Bogwitz M., Brown M., Burgess M., Burke J., Butow P., Caldon L., Campbell I., Christian A., Clarke C., Cohen P., Crook A., Cui J., Dawson S.-J., De Fazio A., Delatycki M., Dobrovic A., Dudding T., Duijf P., Edkins E., Edwards S., Farshid G., Fellows A., Field M., Flanagan J., Fong P., Forbes J., Forrest L., Fox S., French J., Friedlander M., Ortega D.G., Gattas M., Giles G., Gill G., Gleeson M., Greening S., Haan E., Harris M., Hayward N., Hickie I., Hopper J., Hunt C., James P., Jenkins M., Kefford R., Kentwell M., Kirk J., Kollias J., Lakhani S., Lindeman G., Lipton L., Lobb L., Lok S., Macrea F., Mann G., Marsh D., McLachlan S.-A., Meiser B., Milne R., Nightingale S., O'Connell S., Pachter N., Patterson B., Phillips K., Saleh M., Salisbury E., Saunders C., Saunus J., Scott C., Scott R., Sexton A., Shelling A., Simpson P., Spigelman A., Spurdle M., Stone J., Taylor J., Thorne H., Trainer A., Trench G., Tucker K., Visvader J., Cummings M., Walker L., Wallis M., Williams R., Winship I., Wu K., Young M.A., Rezoug Z., Nguyen-Dumont T., Peterlongo P., Tondini C., Terkelsen T., Ronlund K., Boonen S.E., Mannerma A., Winqvist R., Janatova M., Rajadurai P., Xia B., Norton L., Robson M.E., Ng P.-S., Looi L.-M., Southey M.C., Weigelt B., Soo-Hwang T., Tischkowitz M., Foulkes W.D., Reis-Filho J.S., Li A., Geyer F.C., Blecua P., Lee J.Y., Selenica P., Brown D.N., Pareja F., Lee S.S.K., Kumar R., Rivera B., Bi R., Piscuoglio S., Wen H.Y., Lozada J.R., Gularte-Merida R., Cavallone L., Aghmesheh M., Amor D., Andrews L., Antill Y., Balleine R., Beesley J., Blackburn A., Bogwitz M., Brown M., Burgess M., Burke J., Butow P., Caldon L., Campbell I., Christian A., Clarke C., Cohen P., Crook A., Cui J., Dawson S.-J., De Fazio A., Delatycki M., Dobrovic A., Dudding T., Duijf P., Edkins E., Edwards S., Farshid G., Fellows A., Field M., Flanagan J., Fong P., Forbes J., Forrest L., Fox S., French J., Friedlander M., Ortega D.G., Gattas M., Giles G., Gill G., Gleeson M., Greening S., Haan E., Harris M., Hayward N., Hickie I., Hopper J., Hunt C., James P., Jenkins M., Kefford R., Kentwell M., Kirk J., Kollias J., Lakhani S., Lindeman G., Lipton L., Lobb L., Lok S., Macrea F., Mann G., Marsh D., McLachlan S.-A., Meiser B., Milne R., Nightingale S., O'Connell S., Pachter N., Patterson B., Phillips K., Saleh M., Salisbury E., Saunders C., Saunus J., Scott C., Scott R., Sexton A., Shelling A., Simpson P., Spigelman A., Spurdle M., Stone J., Taylor J., Thorne H., Trainer A., Trench G., Tucker K., and Visvader J.

Abstract

In the original version of this paper, the link to the data record in the Data Availability Statement was incorrectly listed as https:// doi.org/10.6084/m9.figshare.8138912.44. The link has been corrected to https://doi.org/10.6084/m9.figshare.8138912. This has been corrected in the HTML and PDF versions of this article.Copyright © 2019, The Author(s).

Published
2019

4. Publisher correction : Homologous recombination DNA repair defects in PALB2-associated breast cancers

Author

Li, Anqi, Geyer, Felipe C., Blecua, Pedro, Lee, Ju Youn, Selenica, Pier, Brown, David N., Pareja, Fresia, Lee, Simon S.K., Kumar, Rahul, Rivera, Barbara, Bi, Rui, Piscuoglio, Salvatore, Wen, Hannah Y., Lozada, John R., Gularte-Mérida, Rodrigo, Cavallone, Luca, Aghmesheh, Morteza, Amor, David, Andrews, Leslie, Antill, Yoland, Balleine, Rosemary, Beesley, Jonathan, Blackburn, Anneke, Bogwitz, Michael, Brown, Melissa, Burgess, Matthew, Burke, Jo, Butow, Phyllis, Caldon, Liz, Campbell, Ian, Christian, Alice, Clarke, Christine, Cohen, Paul, Crook, Ashley, Cui, James, Cummings, Margaret, Dawson, Sarah Jane, De Fazio, Anna, Delatycki, Martin, Dobrovic, Alex, Dudding, Tracy, Duijf, Pascal, Edkins, Edward, Edwards, Stacey, Farshid, Gelareh, Fellows, Andrew, Field, Michael, Flanagan, James, Fong, Peter, Forbes, John, Forrest, Laura, Fox, Stephen, French, Juliet, Friedlander, Michael, Ortega, David Gallego, Gattas, Michael, Giles, Graham, Gill, Grantley, Gleeson, Margaret, Greening, Sian, Haan, Eric, Harris, Marion, Hayward, Nick, Hickie, Ian, Hopper, John, Hunt, Clare, James, Paul, Jenkins, Mark, Kefford, Rick, Kentwell, Maira, Kirk, Judy, Kollias, James, Lakhani, Sunil, Lindeman, Geoff, Lipton, Lara, Lobb, Lizz, Lok, Sheau, Macrea, Finlay, Mann, Graham, Marsh, Deb, McLachlan, Sue Anne, Meiser, Bettina, Milne, Roger, Nightingale, Sophie, O’Connell, Shona, Pachter, Nick, Patterson, Briony, Phillips, Kelly, Saleh, Mona, Salisbury, Elizabeth, Saunders, Christobel, Saunus, Jodi, Scott, Clare, Scott, Rodney, Sexton, Adrienne, Shelling, Andrew, Simpson, Peter, Spigelman, Allan, Spurdle, Mandy, Stone, Jennifer, Taylor, Jessica, Thorne, Heather, Trainer, Alison, Trench, Georgia, Tucker, Kathy, Visvader, Jane, Walker, Logan, Wallis, Mathew, Williams, Rachael, Winship, Ingrid, Wu, Kathy, Young, Mary Anne, Rezoug, Zoulikha, Nguyen-Dumont, Tu, Peterlongo, Paolo, Tondini, Carlo, Terkelsen, Thorkild, Rønlund, Karina, Boonen, Susanne E., Mannerma, Arto, Winqvist, Robert, Janatova, Marketa, Rajadurai, Pathmanathan, Xia, Bing, Norton, Larry, Robson, Mark E., Ng, Pei Sze, Looi, Lai Meng, Southey, Melissa C., Weigelt, Britta, Soo-Hwang, Teo, Tischkowitz, Marc, Foulkes, William D., Reis-Filho, Jorge S., Li, Anqi, Geyer, Felipe C., Blecua, Pedro, Lee, Ju Youn, Selenica, Pier, Brown, David N., Pareja, Fresia, Lee, Simon S.K., Kumar, Rahul, Rivera, Barbara, Bi, Rui, Piscuoglio, Salvatore, Wen, Hannah Y., Lozada, John R., Gularte-Mérida, Rodrigo, Cavallone, Luca, Aghmesheh, Morteza, Amor, David, Andrews, Leslie, Antill, Yoland, Balleine, Rosemary, Beesley, Jonathan, Blackburn, Anneke, Bogwitz, Michael, Brown, Melissa, Burgess, Matthew, Burke, Jo, Butow, Phyllis, Caldon, Liz, Campbell, Ian, Christian, Alice, Clarke, Christine, Cohen, Paul, Crook, Ashley, Cui, James, Cummings, Margaret, Dawson, Sarah Jane, De Fazio, Anna, Delatycki, Martin, Dobrovic, Alex, Dudding, Tracy, Duijf, Pascal, Edkins, Edward, Edwards, Stacey, Farshid, Gelareh, Fellows, Andrew, Field, Michael, Flanagan, James, Fong, Peter, Forbes, John, Forrest, Laura, Fox, Stephen, French, Juliet, Friedlander, Michael, Ortega, David Gallego, Gattas, Michael, Giles, Graham, Gill, Grantley, Gleeson, Margaret, Greening, Sian, Haan, Eric, Harris, Marion, Hayward, Nick, Hickie, Ian, Hopper, John, Hunt, Clare, James, Paul, Jenkins, Mark, Kefford, Rick, Kentwell, Maira, Kirk, Judy, Kollias, James, Lakhani, Sunil, Lindeman, Geoff, Lipton, Lara, Lobb, Lizz, Lok, Sheau, Macrea, Finlay, Mann, Graham, Marsh, Deb, McLachlan, Sue Anne, Meiser, Bettina, Milne, Roger, Nightingale, Sophie, O’Connell, Shona, Pachter, Nick, Patterson, Briony, Phillips, Kelly, Saleh, Mona, Salisbury, Elizabeth, Saunders, Christobel, Saunus, Jodi, Scott, Clare, Scott, Rodney, Sexton, Adrienne, Shelling, Andrew, Simpson, Peter, Spigelman, Allan, Spurdle, Mandy, Stone, Jennifer, Taylor, Jessica, Thorne, Heather, Trainer, Alison, Trench, Georgia, Tucker, Kathy, Visvader, Jane, Walker, Logan, Wallis, Mathew, Williams, Rachael, Winship, Ingrid, Wu, Kathy, Young, Mary Anne, Rezoug, Zoulikha, Nguyen-Dumont, Tu, Peterlongo, Paolo, Tondini, Carlo, Terkelsen, Thorkild, Rønlund, Karina, Boonen, Susanne E., Mannerma, Arto, Winqvist, Robert, Janatova, Marketa, Rajadurai, Pathmanathan, Xia, Bing, Norton, Larry, Robson, Mark E., Ng, Pei Sze, Looi, Lai Meng, Southey, Melissa C., Weigelt, Britta, Soo-Hwang, Teo, Tischkowitz, Marc, Foulkes, William D., and Reis-Filho, Jorge S.

Abstract

Original article published in "npj Breast Cancer, (2019), 5, 1, (23), 10.1038/s41523-019-0115-9" In the original version of this paper, the link to the data record in the Data Availability Statement was incorrectly listed as https:// doi.org/10.6084/m9.figshare.8138912.44. The link has been corrected to https://doi.org/10.6084/m9.figshare.8138912. This has been corrected in the HTML and PDF versions of this article.

Published
2019

5. Homologous recombination DNA repair defects in PALB2-associated breast cancers

Author

Li, Anqi, Geyer, Felipe, Blecua, Pedro, Lee, Ju Youn, Selenica, Pier, Brown, David, Pareja, Fresia, Lee, Simon, Kumar, Rahul, Rivera, Barbara, Bi, Rui, Piscuoglio, Salvatore, Wen, Hannah, Lozada, John, Gularte-Merida, Rodrigo, Cavallone, Luca, Rezoug, Zoulikha, Nguyen-Dumont, Tu, Peterlongo, Paolo, Tondini, Carlo, Terkelsen, Thorkild, Ronlund, Karina, Boonen, Susanne, Mannerma, Arto, Winqvist, Robert, Janatova, Marketa, Rajadurai, Pathmanathan, Xia, Bing, Norton, Larry, Robson, Mark, Ng, Pei-Sze, Looi, Lai-Meng, Southey, Melissa, Weigelt, Britta, Soo-Hwang, Teo, Tischkowitz, Marc, Foulkes, William, Reis-Filho, Jorge, Duijf, Pascal, Li, Anqi, Geyer, Felipe, Blecua, Pedro, Lee, Ju Youn, Selenica, Pier, Brown, David, Pareja, Fresia, Lee, Simon, Kumar, Rahul, Rivera, Barbara, Bi, Rui, Piscuoglio, Salvatore, Wen, Hannah, Lozada, John, Gularte-Merida, Rodrigo, Cavallone, Luca, Rezoug, Zoulikha, Nguyen-Dumont, Tu, Peterlongo, Paolo, Tondini, Carlo, Terkelsen, Thorkild, Ronlund, Karina, Boonen, Susanne, Mannerma, Arto, Winqvist, Robert, Janatova, Marketa, Rajadurai, Pathmanathan, Xia, Bing, Norton, Larry, Robson, Mark, Ng, Pei-Sze, Looi, Lai-Meng, Southey, Melissa, Weigelt, Britta, Soo-Hwang, Teo, Tischkowitz, Marc, Foulkes, William, Reis-Filho, Jorge, and Duijf, Pascal

Abstract

Mono-allelic germline pathogenic variants in the Partner And Localizer of BRCA2 (PALB2) gene predispose to a high-risk of breast cancer development, consistent with the role of PALB2 in homologous recombination (HR) DNA repair. Here, we sought to define the repertoire of somatic genetic alterations in PALB2-associated breast cancers (BCs), and whether PALB2-associated BCs display bi-allelic inactivation of PALB2 and/or genomic features of HR-deficiency (HRD). Twenty-four breast cancer patients with pathogenic PALB2 germline mutations were analyzed by whole-exome sequencing (WES, n = 16) or targeted capture massively parallel sequencing (410 cancer genes, n = 8). Somatic genetic alterations, loss of heterozygosity (LOH) of the PALB2 wild-type allele, large-scale state transitions (LSTs) and mutational signatures were defined. PALB2-associated BCs were found to be heterogeneous at the genetic level, with PIK3CA (29%), PALB2 (21%), TP53 (21%), and NOTCH3 (17%) being the genes most frequently affected by somatic mutations. Bi-allelic PALB2 inactivation was found in 16 of the 24 cases (67%), either through LOH (n = 11) or second somatic mutations (n = 5) of the wild-type allele. High LST scores were found in all 12 PALB2-associated BCs with bi-allelic PALB2 inactivation sequenced by WES, of which eight displayed the HRD-related mutational signature 3. In addition, bi-allelic inactivation of PALB2 was significantly associated with high LST scores. Our findings suggest that the identification of bi-allelic PALB2 inactivation in PALB2-associated BCs is required for the personalization of HR-directed therapies, such as platinum salts and/or PARP inhibitors, as the vast majority of PALB2-associated BCs without PALB2 bi-allelic inactivation lack genomic features of HRD.

Published
2019

6. Homologous recombination DNA repair defects in PALB2-associated breast cancers (vol 5, 23, 2019)

Author

Li, A, Geyer, FC, Blecua, P, Lee, JY, Selenica, P, Brown, DN, Pareja, F, Lee, SSK, Kumar, R, Rivera, B, Bi, R, Piscuoglio, S, Wen, HY, Lozada, JR, Gularte-Merida, R, Cavallone, L, Rezoug, Z, Tu, N-D, Peterlongo, P, Tondini, C, Terkelsen, T, Ronlund, K, Boonen, SE, Mannerma, A, Winqvist, R, Janatova, M, Rajadurai, P, Xia, B, Norton, L, Robson, ME, Ng, P-S, Looi, L-M, Southey, MC, Weigelt, B, Soo-Hwang, T, Tischkowitz, M, Foulkes, WD, Reis-Filho, JS, Aghmesheh, M, Amor, D, Andrews, L, Antill, Y, Balleine, R, Beesley, J, Blackburn, A, Bogwitz, M, Brown, M, Burgess, M, Burke, J, Butow, P, Caldon, L, Campbell, I, Christian, A, Clarke, C, Cohen, P, Crook, A, Cui, J, Cummings, M, Dawson, S-J, De Fazio, A, Delatycki, M, Dobrovic, A, Dudding, T, Duijf, P, Edkins, E, Edwards, S, Farshid, G, Fellows, A, Field, M, Flanagan, J, Fong, P, Forbes, J, Forrest, L, Fox, S, French, J, Friedlander, M, Ortega, DG, Gattas, M, Giles, G, Gill, G, Gleeson, M, Greening, S, Haan, E, Harris, M, Hayward, N, Hickie, I, Hopper, J, Hunt, C, James, P, Jenkins, M, Kefford, R, Kentwell, M, Kirk, J, Kollias, J, Lakhani, S, Lindeman, G, Lipton, L, Lobb, L, Lok, S, Macrea, F, Mann, G, Marsh, D, McLachlan, S-A, Meiser, B, Milne, R, Nightingale, S, O'Connell, S, Pachter, N, Patterson, B, Phillips, K, Saleh, M, Salisbury, E, Saunders, C, Saunus, J, Scott, C, Scott, R, Sexton, A, Shelling, A, Simpson, P, Spigelman, A, Spurdle, M, Stone, J, Taylor, J, Thorne, H, Trainer, A, Trench, G, Tucker, K, Visvader, J, Walker, L, Wallis, M, Williams, R, Winship, I, Wu, K, Young, MA, Li, A, Geyer, FC, Blecua, P, Lee, JY, Selenica, P, Brown, DN, Pareja, F, Lee, SSK, Kumar, R, Rivera, B, Bi, R, Piscuoglio, S, Wen, HY, Lozada, JR, Gularte-Merida, R, Cavallone, L, Rezoug, Z, Tu, N-D, Peterlongo, P, Tondini, C, Terkelsen, T, Ronlund, K, Boonen, SE, Mannerma, A, Winqvist, R, Janatova, M, Rajadurai, P, Xia, B, Norton, L, Robson, ME, Ng, P-S, Looi, L-M, Southey, MC, Weigelt, B, Soo-Hwang, T, Tischkowitz, M, Foulkes, WD, Reis-Filho, JS, Aghmesheh, M, Amor, D, Andrews, L, Antill, Y, Balleine, R, Beesley, J, Blackburn, A, Bogwitz, M, Brown, M, Burgess, M, Burke, J, Butow, P, Caldon, L, Campbell, I, Christian, A, Clarke, C, Cohen, P, Crook, A, Cui, J, Cummings, M, Dawson, S-J, De Fazio, A, Delatycki, M, Dobrovic, A, Dudding, T, Duijf, P, Edkins, E, Edwards, S, Farshid, G, Fellows, A, Field, M, Flanagan, J, Fong, P, Forbes, J, Forrest, L, Fox, S, French, J, Friedlander, M, Ortega, DG, Gattas, M, Giles, G, Gill, G, Gleeson, M, Greening, S, Haan, E, Harris, M, Hayward, N, Hickie, I, Hopper, J, Hunt, C, James, P, Jenkins, M, Kefford, R, Kentwell, M, Kirk, J, Kollias, J, Lakhani, S, Lindeman, G, Lipton, L, Lobb, L, Lok, S, Macrea, F, Mann, G, Marsh, D, McLachlan, S-A, Meiser, B, Milne, R, Nightingale, S, O'Connell, S, Pachter, N, Patterson, B, Phillips, K, Saleh, M, Salisbury, E, Saunders, C, Saunus, J, Scott, C, Scott, R, Sexton, A, Shelling, A, Simpson, P, Spigelman, A, Spurdle, M, Stone, J, Taylor, J, Thorne, H, Trainer, A, Trench, G, Tucker, K, Visvader, J, Walker, L, Wallis, M, Williams, R, Winship, I, Wu, K, and Young, MA

Abstract

[This corrects the article DOI: 10.1038/s41523-019-0115-9.].

Published
2019

7. Homologous recombination DNA repair defects in PALB2-associated breast cancers

Author

Li, A, Geyer, FC, Blecua, P, Lee, JY, Selenica, P, Brown, DN, Pareja, F, Lee, SSK, Kumar, R, Rivera, B, Bi, R, Piscuoglio, S, Wen, HY, Lozada, JR, Gularte-Merida, R, Cavallone, L, Rezoug, Z, Nguyen-Dumont, T, Peterlongo, P, Tondini, C, Terkelsen, T, Ronlund, K, Boonen, SE, Mannerma, A, Winqvist, R, Janatova, M, Rajadurai, P, Xia, B, Norton, L, Robson, ME, Ng, P-S, Looi, L-M, Southey, MC, Weigelt, B, Soo-Hwang, T, Tischkowitz, M, Foulkes, WD, Reis-Filho, JS, Aghmesheh, M, Amor, D, Andrews, L, Antill, Y, Balleine, R, Beesley, J, Blackburn, A, Bogwitz, M, Brown, M, Burgess, M, Burke, J, Butow, P, Caldon, L, Campbell, I, Christian, A, Clarke, C, Cohen, P, Crook, A, Cui, J, Cummings, M, Dawson, S-J, De Fazio, A, Delatycki, M, Dobrovic, A, Dudding, T, Duijf, P, Edkins, E, Edwards, S, Farshid, G, Fellows, A, Field, M, Flanagan, J, Fong, P, Forbes, J, Forrest, L, Fox, S, French, J, Friedlander, M, Ortega, DG, Gattas, M, Giles, G, Gill, G, Gleeson, M, Greening, S, Haan, E, Harris, M, Hayward, N, Hickie, I, Hopper, J, Hunt, C, James, P, Jenkins, M, Kefford, R, Kentwell, M, Kirk, J, Kollias, J, Lakhani, S, Lindeman, G, Lipton, L, Lobb, L, Lok, S, Macrea, F, Mane, G, Marsh, D, Mclachlan, S-A, Meiser, B, Milne, R, Nightingale, S, O'Connell, S, Pachter, N, Patterson, B, Phillips, K, Saleh, M, Salisbury, E, Saunders, C, Saunus, J, Scott, C, Scott, R, Sexton, A, Shelling, A, Simpson, P, Spigelman, A, Spurdle, M, Stone, J, Taylor, J, Thorne, H, Trainer, A, Trench, G, Tucker, K, Visvader, J, Walker, L, Wallis, M, Williams, R, Winship, I, Wu, K, Young, MA, Li, A, Geyer, FC, Blecua, P, Lee, JY, Selenica, P, Brown, DN, Pareja, F, Lee, SSK, Kumar, R, Rivera, B, Bi, R, Piscuoglio, S, Wen, HY, Lozada, JR, Gularte-Merida, R, Cavallone, L, Rezoug, Z, Nguyen-Dumont, T, Peterlongo, P, Tondini, C, Terkelsen, T, Ronlund, K, Boonen, SE, Mannerma, A, Winqvist, R, Janatova, M, Rajadurai, P, Xia, B, Norton, L, Robson, ME, Ng, P-S, Looi, L-M, Southey, MC, Weigelt, B, Soo-Hwang, T, Tischkowitz, M, Foulkes, WD, Reis-Filho, JS, Aghmesheh, M, Amor, D, Andrews, L, Antill, Y, Balleine, R, Beesley, J, Blackburn, A, Bogwitz, M, Brown, M, Burgess, M, Burke, J, Butow, P, Caldon, L, Campbell, I, Christian, A, Clarke, C, Cohen, P, Crook, A, Cui, J, Cummings, M, Dawson, S-J, De Fazio, A, Delatycki, M, Dobrovic, A, Dudding, T, Duijf, P, Edkins, E, Edwards, S, Farshid, G, Fellows, A, Field, M, Flanagan, J, Fong, P, Forbes, J, Forrest, L, Fox, S, French, J, Friedlander, M, Ortega, DG, Gattas, M, Giles, G, Gill, G, Gleeson, M, Greening, S, Haan, E, Harris, M, Hayward, N, Hickie, I, Hopper, J, Hunt, C, James, P, Jenkins, M, Kefford, R, Kentwell, M, Kirk, J, Kollias, J, Lakhani, S, Lindeman, G, Lipton, L, Lobb, L, Lok, S, Macrea, F, Mane, G, Marsh, D, Mclachlan, S-A, Meiser, B, Milne, R, Nightingale, S, O'Connell, S, Pachter, N, Patterson, B, Phillips, K, Saleh, M, Salisbury, E, Saunders, C, Saunus, J, Scott, C, Scott, R, Sexton, A, Shelling, A, Simpson, P, Spigelman, A, Spurdle, M, Stone, J, Taylor, J, Thorne, H, Trainer, A, Trench, G, Tucker, K, Visvader, J, Walker, L, Wallis, M, Williams, R, Winship, I, Wu, K, and Young, MA

Abstract

Mono-allelic germline pathogenic variants in the Partner And Localizer of BRCA2 (PALB2) gene predispose to a high-risk of breast cancer development, consistent with the role of PALB2 in homologous recombination (HR) DNA repair. Here, we sought to define the repertoire of somatic genetic alterations in PALB2-associated breast cancers (BCs), and whether PALB2-associated BCs display bi-allelic inactivation of PALB2 and/or genomic features of HR-deficiency (HRD). Twenty-four breast cancer patients with pathogenic PALB2 germline mutations were analyzed by whole-exome sequencing (WES, n = 16) or targeted capture massively parallel sequencing (410 cancer genes, n = 8). Somatic genetic alterations, loss of heterozygosity (LOH) of the PALB2 wild-type allele, large-scale state transitions (LSTs) and mutational signatures were defined. PALB2-associated BCs were found to be heterogeneous at the genetic level, with PIK3CA (29%), PALB2 (21%), TP53 (21%), and NOTCH3 (17%) being the genes most frequently affected by somatic mutations. Bi-allelic PALB2 inactivation was found in 16 of the 24 cases (67%), either through LOH (n = 11) or second somatic mutations (n = 5) of the wild-type allele. High LST scores were found in all 12 PALB2-associated BCs with bi-allelic PALB2 inactivation sequenced by WES, of which eight displayed the HRD-related mutational signature 3. In addition, bi-allelic inactivation of PALB2 was significantly associated with high LST scores. Our findings suggest that the identification of bi-allelic PALB2 inactivation in PALB2-associated BCs is required for the personalization of HR-directed therapies, such as platinum salts and/or PARP inhibitors, as the vast majority of PALB2-associated BCs without PALB2 bi-allelic inactivation lack genomic features of HRD.

Published
2019

8. Abstract 1924: Genes associated with histopathologic features of triple negative breast tumors predict molecular subtypes

Author

Purrington, Kristen, primary, Visscher, Daniel, additional, Yannoukakos, Drakoulis, additional, Carpenter, Jane, additional, Nevanlinna, Heli, additional, Mannerma, Arto, additional, Wang, Xianshu, additional, Giles, Graham, additional, Zheng, Wei, additional, Cox, Angela, additional, Brauch, Hiltrud, additional, Hamann, Ute, additional, Eccles, Diana, additional, Vachon, Celine M., additional, and Couch, Fergus J., additional

Published
2015
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9. Abstract 1924: Genes associated with histopathologic features of triple negative breast tumors predict molecular subtypes

Author

Graham G. Giles, Heli Nevanlinna, Drakoulis Yannoukakos, Kristen S. Purrington, Celine M. Vachon, Wei Zheng, Hiltrud Brauch, Diana Eccles, Jane Carpenter, Angela Cox, Daniel W. Visscher, Arto Mannerma, Fergus J. Couch, Ute Hamann, and Xianshu Wang

Subjects
Cancer Research, Tumor microenvironment, Pathology, medicine.medical_specialty, Mitotic index, Cancer, Biology, Ductal carcinoma, medicine.disease, Gene expression profiling, Lymphocytic Infiltrate, Breast cancer, Oncology, medicine, Triple-negative breast cancer
Abstract

Distinct subtypes of triple negative (TN) breast cancer have currently been identified by tumor expression profiling and are thought to be influenced by the tumor microenvironment. However, little is known about the relationship between distinguishing histopathologic features of TN tumors, which reflect aspects of both tumor behavior and tumor microenvironment, and molecular TN subtypes. We analyzed whole genome expression profiles of 593 TN tumors from the Triple Negative Breast Cancer Consortium (TNBCC) using the Illumina Whole Genome DASL array. Histopathologic review of mitotic index, grade, trabecular pattern, growth pattern, involution, presence of ductal carcinoma in situ, and degree of lymphoid infiltrate, necrosis, fibrosis, and lobulitis was completed for 310 of these tumors. Clusters were identified both agnostically and using genes associated with these histopathologic features, and subtypes were evaluated for enriched pathways and associations with histopathologic features. Agnostic clustering identified four stable clusters which represented a basal-like (BL) signature, a luminal signature with overexpression of androgen receptor and targets, an immune signature, and a stromal (STR) signature. Overall, the TN tumors tended to have little or no necrosis (91%), high grade (88%), a high mitotic index (80%), fibrosis (77%), an epicentric growth pattern (62%), incomplete lobular involution (55%), trabecular structures (37%), lymphocytic infiltration (25%), adjacent ductal carcinoma in situ (24%), and variable amounts of lobulitis. Using a combined total of 2,776 unique probes individually associated with the ten histopathologic features measured, we identified six distinct TN subtypes, with an additional BL and STR signature compared to the four agnostic subtypes. Our findings suggest that histopathologic features that reflect heterogeneity in tumor cell structure and behavior as well as the tumor microenvironment, particularly the presence of lymphocytic infiltrate, are critical for TN subtype identification. Further work is needed to validate these signatures and to better understand the immunologic pathways associated with each subtype. Citation Format: Kristen Purrington, Daniel Visscher, Drakoulis Yannoukakos, Jane Carpenter, Heli Nevanlinna, Arto Mannerma, Xianshu Wang, Graham Giles, Wei Zheng, Angela Cox, Hiltrud Brauch, Ute Hamann, Diana Eccles, Celine M. Vachon, Fergus J. Couch. Genes associated with histopathologic features of triple negative breast tumors predict molecular subtypes. [abstract]. In: Proceedings of the 106th Annual Meeting of the American Association for Cancer Research; 2015 Apr 18-22; Philadelphia, PA. Philadelphia (PA): AACR; Cancer Res 2015;75(15 Suppl):Abstract nr 1924. doi:10.1158/1538-7445.AM2015-1924

Published
2015
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10. Homologous recombination DNA repair defects in PALB2-associated breast cancers

Author

Li, Anqi, Geyer, Felipe C, Blecua, Pedro, Lee, Ju Youn, Selenica, Pier, Brown, David N, Pareja, Fresia, Lee, Simon SK, Kumar, Rahul, Rivera, Barbara, Bi, Rui, Piscuoglio, Salvatore, Wen, Hannah Y, Lozada, John R, Gularte-Mérida, Rodrigo, Cavallone, Luca, KConFab Investigators, Rezoug, Zoulikha, Nguyen-Dumont, Tu, Peterlongo, Paolo, Tondini, Carlo, Terkelsen, Thorkild, Rønlund, Karina, Boonen, Susanne E, Mannerma, Arto, Winqvist, Robert, Janatova, Marketa, Rajadurai, Pathmanathan, Xia, Bing, Norton, Larry, Robson, Mark E, Ng, Pei-Sze, Looi, Lai-Meng, Southey, Melissa C, Weigelt, Britta, Soo-Hwang, Teo, Tischkowitz, Marc, Foulkes, William D, and Reis-Filho, Jorge S

Subjects
Breast cancer, Cancer genomics, Cancer genetics, 3. Good health
Abstract

Mono-allelic germline pathogenic variants in the Partner And Localizer of BRCA2 (PALB2) gene predispose to a high-risk of breast cancer development, consistent with the role of PALB2 in homologous recombination (HR) DNA repair. Here, we sought to define the repertoire of somatic genetic alterations in PALB2-associated breast cancers (BCs), and whether PALB2-associated BCs display bi-allelic inactivation of PALB2 and/or genomic features of HR-deficiency (HRD). Twenty-four breast cancer patients with pathogenic PALB2 germline mutations were analyzed by whole-exome sequencing (WES, n = 16) or targeted capture massively parallel sequencing (410 cancer genes, n = 8). Somatic genetic alterations, loss of heterozygosity (LOH) of the PALB2 wild-type allele, large-scale state transitions (LSTs) and mutational signatures were defined. PALB2-associated BCs were found to be heterogeneous at the genetic level, with PIK3CA (29%), PALB2 (21%), TP53 (21%), and NOTCH3 (17%) being the genes most frequently affected by somatic mutations. Bi-allelic PALB2 inactivation was found in 16 of the 24 cases (67%), either through LOH (n = 11) or second somatic mutations (n = 5) of the wild-type allele. High LST scores were found in all 12 PALB2-associated BCs with bi-allelic PALB2 inactivation sequenced by WES, of which eight displayed the HRD-related mutational signature 3. In addition, bi-allelic inactivation of PALB2 was significantly associated with high LST scores. Our findings suggest that the identification of bi-allelic PALB2 inactivation in PALB2-associated BCs is required for the personalization of HR-directed therapies, such as platinum salts and/or PARP inhibitors, as the vast majority of PALB2-associated BCs without PALB2 bi-allelic inactivation lack genomic features of HRD.

11. Homologous recombination DNA repair defects in PALB2- associated breast cancers

Author

Li, Anqi, Geyer, Felipe C., Blecua, Pedro, Lee, Ju Youn, Selenica, Pier, Brown, David N., Pareja, Fresia, Lee, Simon S. K., Kumar, Rahul, Rivera, Barbara, Bi, Rui, Piscuoglio, Salvatore, Wen, Hannah Y., Lozada, John R., Gularte-Mérida, Rodrigo, Cavallone, Luca, Rezoug, Zoulikha, Nguyen-Dumont, Tu, Peterlongo, Paolo, Tondini, Carlo, Terkelsen, Thorkild, Rønlund, Karina, Boonen, Susanne E., Mannerma, Arto, Winqvist, Robert, Janatova, Marketa, Rajadurai, Pathmanathan, Xia, Bing, Norton, Larry, Robson, Mark E., Ng, Pei-Sze, Looi, Lai-Meng, Southey, Melissa C., Weigelt, Britta, Soo-Hwang, Teo, Tischkowitz, Marc, Foulkes, William D., Reis-Filho, Jorge S., Aghmesheh, Morteza, Amor, David, Andrews, Leslie, Antill, Yoland, Balleine, Rosemary, Beesley, Jonathan, Blackburn, Anneke, Bogwitz, Michael, Brown, Melissa, Burgess, Matthew, Burke, Jo, Butow, Phyllis, Caldon, Liz, Campbell, Ian, Christian, Alice, Clarke, Christine, Cohen, Paul, Crook, Ashley, Cui, James, Cummings, Margaret, Dawson, Sarah-Jane, De Fazio, Anna, Delatycki, Martin, Dobrovic, Alex, Dudding, Tracy, Duijf, Pascal, Edkins, Edward, Edwards, Stacey, Farshid, Gelareh, Fellows, Andrew, Field, Michael, Flanagan, James, Fong, Peter, Forbes, John, Forrest, Laura, Fox, Stephen, French, Juliet, Friedlander, Michael, Ortega, David Gallego, Gattas, Michael, Giles, Graham, Gill, Grantley, Gleeson, Margaret, Greening, Sian, Haan, Eric, Harris, Marion, Hayward, Nick, Hickie, Ian, Hopper, John, Hunt, Clare, James, Paul, Jenkins, Mark, Kefford, Rick, Kentwell, Maira, Kirk, Judy, Kollias, James, Lakhani, Sunil, Lindeman, Geoff, Lipton, Lara, Lobb, Lizz, Lok, Sheau, Macrea, Finlay, Mann, Graham, Marsh, Deb, McLachlan, Sue-Anne, Meiser, Bettina, Milne, Roger, Nightingale, Sophie, O’Connell, Shona, Pachter, Nick, Patterson, Briony, Phillips, Kelly, Saleh, Mona, Salisbury, Elizabeth, Saunders, Christobel, Saunus, Jodi, Scott, Clare, Scott, Rodney, Sexton, Adrienne, Shelling, Andrew, Simpson, Peter, Spigelman, Allan, Spurdle, Mandy, Stone, Jennifer, Taylor, Jessica, Thorne, Heather, Trainer, Alison, Trench, Georgia, Tucker, Kathy, Visvader, Jane, Walker, Logan, Wallis, Mathew, Williams, Rachael, Winship, Ingrid, Wu, Kathy, and Young, Mary Anne

Subjects
631/67/68, article, 631/67/1347, 692/699/67/69, 3. Good health
Abstract

Mono-allelic germline pathogenic variants in the Partner And Localizer of BRCA2 (PALB2) gene predispose to a high-risk of breast cancer development, consistent with the role of PALB2 in homologous recombination (HR) DNA repair. Here, we sought to define the repertoire of somatic genetic alterations in PALB2-associated breast cancers (BCs), and whether PALB2-associated BCs display bi-allelic inactivation of PALB2 and/or genomic features of HR-deficiency (HRD). Twenty-four breast cancer patients with pathogenic PALB2 germline mutations were analyzed by whole-exome sequencing (WES, n = 16) or targeted capture massively parallel sequencing (410 cancer genes, n = 8). Somatic genetic alterations, loss of heterozygosity (LOH) of the PALB2 wild-type allele, large-scale state transitions (LSTs) and mutational signatures were defined. PALB2-associated BCs were found to be heterogeneous at the genetic level, with PIK3CA (29%), PALB2 (21%), TP53 (21%), and NOTCH3 (17%) being the genes most frequently affected by somatic mutations. Bi-allelic PALB2 inactivation was found in 16 of the 24 cases (67%), either through LOH (n = 11) or second somatic mutations (n = 5) of the wild-type allele. High LST scores were found in all 12 PALB2-associated BCs with bi-allelic PALB2 inactivation sequenced by WES, of which eight displayed the HRD-related mutational signature 3. In addition, bi-allelic inactivation of PALB2 was significantly associated with high LST scores. Our findings suggest that the identification of bi-allelic PALB2 inactivation in PALB2-associated BCs is required for the personalization of HR-directed therapies, such as platinum salts and/or PARP inhibitors, as the vast majority of PALB2-associated BCs without PALB2 bi-allelic inactivation lack genomic features of HRD.

12. Erratum: Publisher Correction: Homologous recombination DNA repair defects in PALB2 -associated breast cancers.

Author

Li A, Geyer FC, Blecua P, Lee JY, Selenica P, Brown DN, Pareja F, Lee SSK, Kumar R, Rivera B, Bi R, Piscuoglio S, Wen HY, Lozada JR, Gularte-Mérida R, Cavallone L, Rezoug Z, Nguyen-Dumont T, Peterlongo P, Tondini C, Terkelsen T, Rønlund K, Boonen SE, Mannerma A, Winqvist R, Janatova M, Rajadurai P, Xia B, Norton L, Robson ME, Ng PS, Looi LM, Southey MC, Weigelt B, Soo-Hwang T, Tischkowitz M, Foulkes WD, and Reis-Filho JS

Abstract

[This corrects the article DOI: 10.1038/s41523-019-0115-9.]., (© The Author(s) 2019.)

Published
2019
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