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10 results on '"Schmidt, Chris W."'

1. Whole genome landscapes of uveal melanoma show an ultraviolet radiation signature in iris tumours

Author

Johansson, Peter A., Brooks, Kelly, Newell, Felicity, Palmer, Jane M., Wilmott, James S., Pritchard, Antonia L., Broit, Natasa, Wood, Scott, Carlino, Matteo S., Leonard, Conrad, Koufariotis, Lambros T., Nathan, Vaishnavi, Beasley, Aaron B., Howlie, Madeleine, Dawson, Rebecca, Rizos, Helen, Schmidt, Chris W., Long, Georgina V., Hamilton, Hayley, Kiilgaard, Jens F., Isaacs, Timothy, Gray, Elin S., Rolfe, Olivia J., Park, John J., Stark, Andrew, Mann, Graham J., Scolyer, Richard A., Pearson, John V., van Baren, Nicolas, Waddell, Nicola, Wadt, Karin W., McGrath, Lindsay A., Warrier, Sunil K., Glasson, William, and Hayward, Nicholas K.

Published
2020
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3. Whole genome landscapes of uveal melanoma show an ultraviolet radiation signature in iris tumours

Author

Johansson, Peter A, Brooks, Kelly, Newell, Felicity, Palmer, Jane M, Wilmott, James S, Pritchard, Antonia L, Broit, Natasa, Wood, Scott, Carlino, Matteo S, Leonard, Conrad, Koufariotis, Lambros T, Nathan, Vaishnavi, Beasley, Aaron B, Howlie, Madeleine, Dawson, Rebecca, Rizos, Helen, Schmidt, Chris W, Long, Georgina V, Hamilton, Hayley, Kiilgaard, Jens F, Isaacs, Timothy, Gray, Elin S, Rolfe, Olivia J, Park, John J, Stark, Andrew, Mann, Graham J, Scolyer, Richard A, Pearson, John V, van Baren, Nicolas, Waddell, Nicola, Wadt, Karin W, McGrath, Lindsay A, Warrier, Sunil K, Glasson, William, Hayward, Nicholas K, Johansson, Peter A, Brooks, Kelly, Newell, Felicity, Palmer, Jane M, Wilmott, James S, Pritchard, Antonia L, Broit, Natasa, Wood, Scott, Carlino, Matteo S, Leonard, Conrad, Koufariotis, Lambros T, Nathan, Vaishnavi, Beasley, Aaron B, Howlie, Madeleine, Dawson, Rebecca, Rizos, Helen, Schmidt, Chris W, Long, Georgina V, Hamilton, Hayley, Kiilgaard, Jens F, Isaacs, Timothy, Gray, Elin S, Rolfe, Olivia J, Park, John J, Stark, Andrew, Mann, Graham J, Scolyer, Richard A, Pearson, John V, van Baren, Nicolas, Waddell, Nicola, Wadt, Karin W, McGrath, Lindsay A, Warrier, Sunil K, Glasson, William, and Hayward, Nicholas K

Abstract

Uveal melanoma (UM) is the most common intraocular tumour in adults and despite surgical or radiation treatment of primary tumours, ~50% of patients progress to metastatic disease. Therapeutic options for metastatic UM are limited, with clinical trials having little impact. Here we perform whole-genome sequencing (WGS) of 103 UM from all sites of the uveal tract (choroid, ciliary body, iris). While most UM have low tumour mutation burden (TMB), two subsets with high TMB are seen; one driven by germline MBD4 mutation, and another by ultraviolet radiation (UVR) exposure, which is restricted to iris UM. All but one tumour have a known UM driver gene mutation (GNAQ, GNA11, BAP1, PLCB4, CYSLTR2, SF3B1, EIF1AX). We identify three other significantly mutated genes (TP53, RPL5 and CENPE).

Published
2020

4. Correction: In Vitro Analysis of Breast Cancer Cell Line Tumourspheres and Primary Human Breast Epithelia Mammospheres Demonstrates Inter- and Intrasphere Heterogeneity

Author

Smart, Chanel E., primary, Morrison, Brian J., additional, Saunus, Jodi M., additional, Vargas, Ana Cristina, additional, Keith, Patricia, additional, Reid, Lynne, additional, Wockner, Leesa, additional, Askarian-Amiri, Marjan, additional, Sarkar, Debina, additional, Simpson, Peter T., additional, Clarke, Catherine, additional, Schmidt, Chris W., additional, Reynolds, Brent A., additional, Lakhani, Sunil R., additional, and Lopez, J. Alejandro, additional

Published
2013
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5. In Vitro Analysis of Breast Cancer Cell Line Tumourspheres and Primary Human Breast Epithelia Mammospheres Demonstrates Inter- and Intrasphere Heterogeneity

Author

Smart, Chanel E., primary, Morrison, Brian J., additional, Saunus, Jodi M., additional, Vargas, Ana Cristina, additional, Keith, Patricia, additional, Reid, Lynne, additional, Wockner, Leesa, additional, Amiri, Marjan Askarian, additional, Sarkar, Debina, additional, Simpson, Peter T., additional, Clarke, Catherine, additional, Schmidt, Chris W., additional, Reynolds, Brent A., additional, Lakhani, Sunil R., additional, and Lopez, J. Alejandro, additional

Published
2013
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9. In Vitro Analysis of Breast Cancer Cell Line Tumourspheres and Primary Human Breast Epithelia Mammospheres Demonstrates Inter- and Intrasphere Heterogeneity.

Author

Smart, Chanel E., Morrison, Brian J., Saunus, Jodi M., Vargas, Ana Cristina, Keith, Patricia, Reid, Lynne, Wockner, Leesa, Amiri, Marjan Askarian, Sarkar, Debina, Simpson, Peter T., Clarke, Catherine, Schmidt, Chris W., Reynolds, Brent A., Lakhani, Sunil R., and Lopez, J. Alejandro

Subjects
BREAST cancer, CANCER cells, EPITHELIAL cells, CELL culture, DEVELOPMENTAL biology, CELL differentiation, MOLECULAR biology
Abstract

Mammosphere and breast tumoursphere culture have gained popularity as in vitro assays for propagating and analysing normal and cancer stem cells. Whether the spheres derived from different sources or parent cultures themselves are indeed single entities enriched in stem/progenitor cells compared to other culture formats has not been fully determined. We surveyed sphere-forming capacity across 26 breast cell lines, immunophenotyped spheres from six luminal- and basal-like lines by immunohistochemistry and flow cytometry and compared clonogenicity between sphere, adherent and matrigel culture formats using in vitro functional assays. Analyses revealed morphological and molecular intra- and inter-sphere heterogeneity, consistent with adherent parental cell line phenotypes. Flow cytometry showed sphere culture does not universally enrich for markers previously associated with stem cell phenotypes, although we found some cell-line specific changes between sphere and adherent formats. Sphere-forming efficiency was significantly lower than adherent or matrigel clonogenicity and constant over serial passage. Surprisingly, self-renewal capacity of sphere-derived cells was similar/lower than other culture formats. We observed significant correlation between long-term-proliferating-cell symmetric division rates in sphere and adherent cultures, suggesting functional overlap between the compartments sustaining them. Experiments with normal primary human mammary epithelia, including sorted luminal (MUC1+) and basal/myoepithelial (CD10+) cells revealed distinct luminal-like, basal-like and mesenchymal entities amongst primary mammospheres. Morphological and colony-forming-cell assay data suggested mammosphere culture may enrich for a luminal progenitor phenotype, or induce reversion/relaxation of the basal/mesenchymal in vitro selection occurring with adherent culture. Overall, cell line tumourspheres and primary mammospheres are not homogenous entities enriched for stem cells, suggesting a more cautious approach to interpreting data from these assays and careful consideration of its limitations. Sphere culture may represent an alternative 3-dimensional culture system which rather than universally ‘enriching’ for stem cells, has utility as one of a suite of functional assays that provide a read-out of progenitor activity. [ABSTRACT FROM AUTHOR]

Published
2013
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10. Whole genome landscapes of uveal melanoma show an ultraviolet radiation signature in iris tumours

Author

<p>Funding information available at https://doi.org/10.1007/s00429-020-02071-1</p>, Johansson, Peter A., Brooks, Kelly, Newell, Felicity, Palmer, Jane M., Wilmott, James S., Pritchard, Antonia L., Broit, Natasa, Wood, Scott, Carlino, Matteo S., Leonard, Conrad, Koufariotis, Labros T., Nathan, Vaishnavi, Beasley, Aaron B., Howlie, Madeleine, Dawson, Rebecca, Rizos, Helen, Schmidt, Chris W., Long, Georgina V., Hamilton, Hayley, Kiilgaard, Jens F., Isaacs, Timothy, Gray, Elin S., Rolfe, Olivia J., Park, John J., Stark, Andrew, Mann, Graham J., Scolyer, Richard A., Pearson, John V., van Baren, Nicolas, Waddell, Nicola, Wadt, Karin W., McGrath, Lindsay A., Warrier, Sunil K., Glasson, William, Hayward, Nicholas K., <p>Funding information available at https://doi.org/10.1007/s00429-020-02071-1</p>, Johansson, Peter A., Brooks, Kelly, Newell, Felicity, Palmer, Jane M., Wilmott, James S., Pritchard, Antonia L., Broit, Natasa, Wood, Scott, Carlino, Matteo S., Leonard, Conrad, Koufariotis, Labros T., Nathan, Vaishnavi, Beasley, Aaron B., Howlie, Madeleine, Dawson, Rebecca, Rizos, Helen, Schmidt, Chris W., Long, Georgina V., Hamilton, Hayley, Kiilgaard, Jens F., Isaacs, Timothy, Gray, Elin S., Rolfe, Olivia J., Park, John J., Stark, Andrew, Mann, Graham J., Scolyer, Richard A., Pearson, John V., van Baren, Nicolas, Waddell, Nicola, Wadt, Karin W., McGrath, Lindsay A., Warrier, Sunil K., Glasson, William, and Hayward, Nicholas K.

Abstract

Johansson, P. A., Brooks, K., Newell, F., Palmer, J. M., Wilmott, J. S., Pritchard, A. L., ... & Koufariotis, L. T. (2020). Whole genome landscapes of uveal melanoma show an ultraviolet radiation signature in iris tumours. Nature communications, 11(1), Article number: 2408. https://doi.org/10.1038/s41467-020-16276-8

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