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1. Pathway Analysis Integrating Genome-Wide and Functional Data Identifies PLCG2 as a Candidate Gene for Age-Related Macular Degeneration

Author

Waksmunski, AR, Grunin, M, Kinzy, TG, Igo, RP, Haines, JL, Bailey, JNC, Fritsche, LG, Igl, W, Grassmann, F, Sengupta, S, Bragg-Gresham, JL, Burdon, KP, Hebbring, SJ, Wen, C, Gorski, M, Kim, IK, Cho, D, Zack, D, Souied, E, Scholl, HPN, Bala, E, Lee, KE, Hunter, DJ, Sardell, RJ, Mitchell, P, Merriam, JE, Cipriani, V, Hoffman, JD, Schick, T, Lechanteur, YTE, Guymer, RH, Johnson, MP, Jiang, Y, Stanton, CM, Buitendijk, GHS, Zhan, X, Kwong, AM, Boleda, A, Brooks, M, Gieser, L, Ratnapriya, R, Branham, KE, Foerster, JR, Heckenlively, JR, Othman, M, Vote, BJ, Liang, HH, Souzeau, E, McAllister, IL, Isaacs, T, Hall, J, Lake, S, Mackey, DA, Constable, IJ, Craig, JE, Kitchner, TE, Yang, Z, Su, Z, Luo, H, Chen, D, Ouyang, H, Flagg, K, Lin, D, Mao, G, Ferreyra, H, Stark, K, von Strachwitz, CN, Wolf, A, Brandl, C, Rudolph, G, Olden, M, Morrison, MA, Morgan, DJ, Schu, M, Ahn, J, Silvestri, G, Tsironi, EE, Park, KH, Farrer, LA, Orlin, A, Brucker, A, Li, M, Curcio, CA, Mohand-Said, S, Sahel, J-A, Audo, I, Benchaboune, M, Cree, AJ, Rennie, CA, Goverdhan, S, Hagbi-Levi, S, Campochiaro, P, Katsanis, N, Holz, FG, Blond, F, Blanche, H, Deleuze, J-F, Truitt, B, Peachey, NS, Meuer, SM, Myers, CE, Moore, EL, Klein, R, Hauser, MA, Postel, EA, Courtenay, MD, Schwartz, SG, Kovach, JL, Scott, WK, Liew, G, Tan, AG, Gopinath, B, Merriam, JC, Smith, RT, Khan, JC, Shahid, H, Moore, AT, McGrath, JA, Laux, R, Brantley, MA, Agarwal, A, Ersoy, L, Caramoy, A, Langmann, T, Saksens, NTM, de Jong, EK, Hoyng, CB, Cain, MS, Richardson, AJ, Martin, TM, Blangero, J, Weeks, DE, Dhillon, B, van Duijn, CM, Doheny, KF, Romm, J, Klaver, CCW, Hayward, C, Gorin, MB, Klein, ML, Baird, PN, den Hollander, A, Fauser, S, Yates, JRW, Allikmets, R, Wang, JJ, Schaumberg, DA, Klein, BEK, Hagstrom, SA, Chowers, I, Lotery, AJ, Leveillard, T, Zhang, K, Brilliant, MH, Hewitt, AW, Swaroop, A, Chew, EY, Pericak-Vance, MA, DeAngelis, M, Stambolian, D, Iyengar, SK, Weber, BHF, Abecasis, GR, Heid, IM, Waksmunski, AR, Grunin, M, Kinzy, TG, Igo, RP, Haines, JL, Bailey, JNC, Fritsche, LG, Igl, W, Grassmann, F, Sengupta, S, Bragg-Gresham, JL, Burdon, KP, Hebbring, SJ, Wen, C, Gorski, M, Kim, IK, Cho, D, Zack, D, Souied, E, Scholl, HPN, Bala, E, Lee, KE, Hunter, DJ, Sardell, RJ, Mitchell, P, Merriam, JE, Cipriani, V, Hoffman, JD, Schick, T, Lechanteur, YTE, Guymer, RH, Johnson, MP, Jiang, Y, Stanton, CM, Buitendijk, GHS, Zhan, X, Kwong, AM, Boleda, A, Brooks, M, Gieser, L, Ratnapriya, R, Branham, KE, Foerster, JR, Heckenlively, JR, Othman, M, Vote, BJ, Liang, HH, Souzeau, E, McAllister, IL, Isaacs, T, Hall, J, Lake, S, Mackey, DA, Constable, IJ, Craig, JE, Kitchner, TE, Yang, Z, Su, Z, Luo, H, Chen, D, Ouyang, H, Flagg, K, Lin, D, Mao, G, Ferreyra, H, Stark, K, von Strachwitz, CN, Wolf, A, Brandl, C, Rudolph, G, Olden, M, Morrison, MA, Morgan, DJ, Schu, M, Ahn, J, Silvestri, G, Tsironi, EE, Park, KH, Farrer, LA, Orlin, A, Brucker, A, Li, M, Curcio, CA, Mohand-Said, S, Sahel, J-A, Audo, I, Benchaboune, M, Cree, AJ, Rennie, CA, Goverdhan, S, Hagbi-Levi, S, Campochiaro, P, Katsanis, N, Holz, FG, Blond, F, Blanche, H, Deleuze, J-F, Truitt, B, Peachey, NS, Meuer, SM, Myers, CE, Moore, EL, Klein, R, Hauser, MA, Postel, EA, Courtenay, MD, Schwartz, SG, Kovach, JL, Scott, WK, Liew, G, Tan, AG, Gopinath, B, Merriam, JC, Smith, RT, Khan, JC, Shahid, H, Moore, AT, McGrath, JA, Laux, R, Brantley, MA, Agarwal, A, Ersoy, L, Caramoy, A, Langmann, T, Saksens, NTM, de Jong, EK, Hoyng, CB, Cain, MS, Richardson, AJ, Martin, TM, Blangero, J, Weeks, DE, Dhillon, B, van Duijn, CM, Doheny, KF, Romm, J, Klaver, CCW, Hayward, C, Gorin, MB, Klein, ML, Baird, PN, den Hollander, A, Fauser, S, Yates, JRW, Allikmets, R, Wang, JJ, Schaumberg, DA, Klein, BEK, Hagstrom, SA, Chowers, I, Lotery, AJ, Leveillard, T, Zhang, K, Brilliant, MH, Hewitt, AW, Swaroop, A, Chew, EY, Pericak-Vance, MA, DeAngelis, M, Stambolian, D, Iyengar, SK, Weber, BHF, Abecasis, GR, and Heid, IM

Abstract

PURPOSE: Age-related macular degeneration (AMD) is the worldwide leading cause of blindness among the elderly. Although genome-wide association studies (GWAS) have identified AMD risk variants, their roles in disease etiology are not well-characterized, and they only explain a portion of AMD heritability. METHODS: We performed pathway analyses using summary statistics from the International AMD Genomics Consortium's 2016 GWAS and multiple pathway databases to identify biological pathways wherein genetic association signals for AMD may be aggregating. We determined which genes contributed most to significant pathway signals across the databases. We characterized these genes by constructing protein-protein interaction networks and performing motif analysis. RESULTS: We determined that eight genes (C2, C3, LIPC, MICA, NOTCH4, PLCG2, PPARA, and RAD51B) "drive" the statistical signals observed across pathways curated in the Kyoto Encyclopedia of Genes and Genomes (KEGG), Reactome, and Gene Ontology (GO) databases. We further refined our definition of statistical driver gene to identify PLCG2 as a candidate gene for AMD due to its significant gene-level signals (P < 0.0001) across KEGG, Reactome, GO, and NetPath pathways. CONCLUSIONS: We performed pathway analyses on the largest available collection of advanced AMD cases and controls in the world. Eight genes strongly contributed to significant pathways from the three larger databases, and one gene (PLCG2) was central to significant pathways from all four databases. This is, to our knowledge, the first study to identify PLCG2 as a candidate gene for AMD based solely on genetic burden. Our findings reinforce the utility of integrating in silico genetic and biological pathway data to investigate the genetic architecture of AMD.

Published
2019

2. A large genome-wide association study of age-related macular degeneration highlights contributions of rare and common variants

Author

Fritsche, LG, Igl, W, Bailey, JNC, Grassmann, F, Sengupta, S, Bragg-Gresham, JL, Burdon, KP, Hebbring, SJ, Wen, C, Gorski, M, Kim, IK, Cho, D, Zack, D, Souied, E, Scholl, HPN, Bala, E, Lee, KE, Hunter, DJ, Sardell, RJ, Mitchell, P, Merriam, JE, Cipriani, V, Hoffman, JD, Schick, T, Lechanteur, YTE, Guymer, RH, Johnson, MP, Jiang, Y, Stanton, CM, Buitendijk, GHS, Zhan, X, Kwong, AM, Boleda, A, Brooks, M, Gieser, L, Ratnapriya, R, Branham, KE, Foerster, JR, Heckenlively, JR, Othman, MI, Vote, BJ, Liang, HH, Souzeau, E, McAllister, IL, Isaacs, T, Hall, J, Lake, S, Mackey, DA, Constable, IJ, Craig, JE, Kitchner, TE, Yang, Z, Su, Z, Luo, H, Chen, D, Hong, O, Flagg, K, Lin, D, Mao, G, Ferreyra, H, Starke, K, von Strachwitz, CN, Wolf, A, Brandl, C, Rudolph, G, Olden, M, Morrison, MA, Morgan, DJ, Schu, M, Ahn, J, Silvestri, G, Tsironi, EE, Park, KH, Farrer, LA, Orlin, A, Brucker, A, Li, M, Curcio, CA, Mohand-Said, S, Sahel, J-M, Audo, I, Benchaboune, M, Cree, AJ, Rennie, CA, Goverdhan, SV, Grunin, M, Hagbi-Levi, S, Campochiaro, P, Katsanis, N, Holz, FG, Blond, F, Blanche, H, Deleuze, J-F, Igo, RP, Truitt, B, Peachey, NS, Meuer, SM, Myers, CE, Moore, EL, Klein, R, Hauser, MA, Postel, EA, Courtenay, MD, Schwartz, SG, Kovach, JL, Scott, WK, Liew, G, Tan, AG, Gopinath, B, Merriam, JC, Smith, RT, Khan, JC, Shahid, H, Moore, AT, McGrath, JA, Laux, R, Brantley, MA, Agarwal, A, Ersoy, L, Caramoy, A, Langmann, T, Saksens, NTM, de Jong, EK, Hoyng, CB, Cain, MS, Richardson, AJ, Martin, TM, Blangero, J, Weeks, DE, Dhillon, B, van Duijn, CM, Doheny, KF, Romm, J, Klaver, CCW, Hayward, C, Gorin, MB, Klein, ML, Baird, PN, den Hollander, AI, Fauser, S, Yates, JRW, Allikmets, R, Wang, JJ, Schaumberg, DA, Klein, BEK, Hagstrom, SA, Chowers, I, Lotery, AJ, Leveillard, T, Zhang, K, Brilliant, MH, Hewitt, AW, Swaroop, A, Chew, EY, Pericak-Vance, MA, DeAngelis, M, Stambolian, D, Haines, JL, Iyengar, SK, Weber, BHF, Abecasis, GR, Heid, IM, Fritsche, LG, Igl, W, Bailey, JNC, Grassmann, F, Sengupta, S, Bragg-Gresham, JL, Burdon, KP, Hebbring, SJ, Wen, C, Gorski, M, Kim, IK, Cho, D, Zack, D, Souied, E, Scholl, HPN, Bala, E, Lee, KE, Hunter, DJ, Sardell, RJ, Mitchell, P, Merriam, JE, Cipriani, V, Hoffman, JD, Schick, T, Lechanteur, YTE, Guymer, RH, Johnson, MP, Jiang, Y, Stanton, CM, Buitendijk, GHS, Zhan, X, Kwong, AM, Boleda, A, Brooks, M, Gieser, L, Ratnapriya, R, Branham, KE, Foerster, JR, Heckenlively, JR, Othman, MI, Vote, BJ, Liang, HH, Souzeau, E, McAllister, IL, Isaacs, T, Hall, J, Lake, S, Mackey, DA, Constable, IJ, Craig, JE, Kitchner, TE, Yang, Z, Su, Z, Luo, H, Chen, D, Hong, O, Flagg, K, Lin, D, Mao, G, Ferreyra, H, Starke, K, von Strachwitz, CN, Wolf, A, Brandl, C, Rudolph, G, Olden, M, Morrison, MA, Morgan, DJ, Schu, M, Ahn, J, Silvestri, G, Tsironi, EE, Park, KH, Farrer, LA, Orlin, A, Brucker, A, Li, M, Curcio, CA, Mohand-Said, S, Sahel, J-M, Audo, I, Benchaboune, M, Cree, AJ, Rennie, CA, Goverdhan, SV, Grunin, M, Hagbi-Levi, S, Campochiaro, P, Katsanis, N, Holz, FG, Blond, F, Blanche, H, Deleuze, J-F, Igo, RP, Truitt, B, Peachey, NS, Meuer, SM, Myers, CE, Moore, EL, Klein, R, Hauser, MA, Postel, EA, Courtenay, MD, Schwartz, SG, Kovach, JL, Scott, WK, Liew, G, Tan, AG, Gopinath, B, Merriam, JC, Smith, RT, Khan, JC, Shahid, H, Moore, AT, McGrath, JA, Laux, R, Brantley, MA, Agarwal, A, Ersoy, L, Caramoy, A, Langmann, T, Saksens, NTM, de Jong, EK, Hoyng, CB, Cain, MS, Richardson, AJ, Martin, TM, Blangero, J, Weeks, DE, Dhillon, B, van Duijn, CM, Doheny, KF, Romm, J, Klaver, CCW, Hayward, C, Gorin, MB, Klein, ML, Baird, PN, den Hollander, AI, Fauser, S, Yates, JRW, Allikmets, R, Wang, JJ, Schaumberg, DA, Klein, BEK, Hagstrom, SA, Chowers, I, Lotery, AJ, Leveillard, T, Zhang, K, Brilliant, MH, Hewitt, AW, Swaroop, A, Chew, EY, Pericak-Vance, MA, DeAngelis, M, Stambolian, D, Haines, JL, Iyengar, SK, Weber, BHF, Abecasis, GR, and Heid, IM

Abstract

Advanced age-related macular degeneration (AMD) is the leading cause of blindness in the elderly, with limited therapeutic options. Here we report on a study of >12 million variants, including 163,714 directly genotyped, mostly rare, protein-altering variants. Analyzing 16,144 patients and 17,832 controls, we identify 52 independently associated common and rare variants (P < 5 × 10(-8)) distributed across 34 loci. Although wet and dry AMD subtypes exhibit predominantly shared genetics, we identify the first genetic association signal specific to wet AMD, near MMP9 (difference P value = 4.1 × 10(-10)). Very rare coding variants (frequency <0.1%) in CFH, CFI and TIMP3 suggest causal roles for these genes, as does a splice variant in SLC16A8. Our results support the hypothesis that rare coding variants can pinpoint causal genes within known genetic loci and illustrate that applying the approach systematically to detect new loci requires extremely large sample sizes.

Published
2016

3. Seven new loci associated with age-related macular degeneration

Author

Fritsche, LG, Chen, W, Schu, M, Yaspan, BL, Yu, Y, Thorleifsson, G, Zack, DJ, Arakawa, S, Cipriani, V, Ripke, S, Igo, RP, Buitendijk, GHS, Sim, X, Weeks, DE, Guymer, RH, Merriam, JE, Francis, PJ, Hannum, G, Agarwal, A, Armbrecht, AM, Audo, I, Aung, T, Barile, GR, Benchaboune, M, Bird, AC, Bishop, PN, Branham, KE, Brooks, M, Brucker, AJ, Cade, WH, Cain, MS, Campochiaroll, PA, Chan, C-C, Cheng, C-Y, Chew, EY, Chin, KA, Chowers, I, Clayton, DG, Cojocaru, R, Conley, YP, Cornes, BK, Daly, MJ, Dhillon, B, Edwards, A, Evangelou, E, Fagemess, J, Ferreyra, HA, Friedman, JS, Geirsdottir, A, George, RJ, Gieger, C, Gupta, N, Hagstrom, SA, Harding, SP, Haritoglou, C, Heckenlively, JR, Hoz, FG, Hughes, G, Ioannidis, JPA, Ishibashi, T, Joseph, P, Jun, G, Kamatani, Y, Katsanis, N, Keilhauer, CN, Khan, JC, Kim, IK, Kiyohara, Y, Klein, BEK, Klein, R, Kovach, JL, Kozak, I, Lee, CJ, Lee, KE, Lichtner, P, Lotery, AJ, Meitinger, T, Mitchell, P, Mohand-Saied, S, Moore, AT, Morgan, DJ, Morrison, MA, Myers, CE, Naj, AC, Nakamura, Y, Okada, Y, Orlin, A, Ortube, MC, Othman, MI, Pappas, C, Park, KH, Pauer, GJT, Peachey, NS, Poch, O, Priya, RR, Reynolds, R, Richardson, AJ, Ripp, R, Rudolph, G, Ryu, E, Sahel, J-A, Schaumberg, DA, Scholl, HPN, Schwartz, SG, Scott, WK, Shahid, H, Sigurdsson, H, Silvestri, G, Sivakumaran, TA, Smith, RT, Sobrin, L, Souied, EH, Stambolian, DE, Stefansson, H, Sturgill-Short, GM, Takahashi, A, Tosakulwong, N, Truitt, BJ, Tsironi, EE, Uitterlinden, AG, van Duijn, CM, Vijaya, L, Vingerling, JR, Vithana, EN, Webster, AR, Wichmann, H-E, Winkler, TW, Wong, TY, Wright, AF, Zelenika, D, Zhang, M, Zhao, L, Zhang, K, Klein, ML, Hageman, GS, Lathrop, GM, Stefansson, K, Allikmets, R, Baird, PN, Gorin, MB, Wang, JJ, Klaver, CCW, Seddon, JM, Pericak-Vance, MA, Iyengar, SK, Yates, JRW, Swaroop, A, Weber, BHF, Kubo, M, DeAngelis, MM, Leveillard, T, Thorsteinsdottir, U, Haines, JL, Farrer, LA, Heid, IM, Abecasis, GR, Fritsche, LG, Chen, W, Schu, M, Yaspan, BL, Yu, Y, Thorleifsson, G, Zack, DJ, Arakawa, S, Cipriani, V, Ripke, S, Igo, RP, Buitendijk, GHS, Sim, X, Weeks, DE, Guymer, RH, Merriam, JE, Francis, PJ, Hannum, G, Agarwal, A, Armbrecht, AM, Audo, I, Aung, T, Barile, GR, Benchaboune, M, Bird, AC, Bishop, PN, Branham, KE, Brooks, M, Brucker, AJ, Cade, WH, Cain, MS, Campochiaroll, PA, Chan, C-C, Cheng, C-Y, Chew, EY, Chin, KA, Chowers, I, Clayton, DG, Cojocaru, R, Conley, YP, Cornes, BK, Daly, MJ, Dhillon, B, Edwards, A, Evangelou, E, Fagemess, J, Ferreyra, HA, Friedman, JS, Geirsdottir, A, George, RJ, Gieger, C, Gupta, N, Hagstrom, SA, Harding, SP, Haritoglou, C, Heckenlively, JR, Hoz, FG, Hughes, G, Ioannidis, JPA, Ishibashi, T, Joseph, P, Jun, G, Kamatani, Y, Katsanis, N, Keilhauer, CN, Khan, JC, Kim, IK, Kiyohara, Y, Klein, BEK, Klein, R, Kovach, JL, Kozak, I, Lee, CJ, Lee, KE, Lichtner, P, Lotery, AJ, Meitinger, T, Mitchell, P, Mohand-Saied, S, Moore, AT, Morgan, DJ, Morrison, MA, Myers, CE, Naj, AC, Nakamura, Y, Okada, Y, Orlin, A, Ortube, MC, Othman, MI, Pappas, C, Park, KH, Pauer, GJT, Peachey, NS, Poch, O, Priya, RR, Reynolds, R, Richardson, AJ, Ripp, R, Rudolph, G, Ryu, E, Sahel, J-A, Schaumberg, DA, Scholl, HPN, Schwartz, SG, Scott, WK, Shahid, H, Sigurdsson, H, Silvestri, G, Sivakumaran, TA, Smith, RT, Sobrin, L, Souied, EH, Stambolian, DE, Stefansson, H, Sturgill-Short, GM, Takahashi, A, Tosakulwong, N, Truitt, BJ, Tsironi, EE, Uitterlinden, AG, van Duijn, CM, Vijaya, L, Vingerling, JR, Vithana, EN, Webster, AR, Wichmann, H-E, Winkler, TW, Wong, TY, Wright, AF, Zelenika, D, Zhang, M, Zhao, L, Zhang, K, Klein, ML, Hageman, GS, Lathrop, GM, Stefansson, K, Allikmets, R, Baird, PN, Gorin, MB, Wang, JJ, Klaver, CCW, Seddon, JM, Pericak-Vance, MA, Iyengar, SK, Yates, JRW, Swaroop, A, Weber, BHF, Kubo, M, DeAngelis, MM, Leveillard, T, Thorsteinsdottir, U, Haines, JL, Farrer, LA, Heid, IM, and Abecasis, GR

Abstract

Age-related macular degeneration (AMD) is a common cause of blindness in older individuals. To accelerate the understanding of AMD biology and help design new therapies, we executed a collaborative genome-wide association study, including >17,100 advanced AMD cases and >60,000 controls of European and Asian ancestry. We identified 19 loci associated at P < 5 × 10(-8). These loci show enrichment for genes involved in the regulation of complement activity, lipid metabolism, extracellular matrix remodeling and angiogenesis. Our results include seven loci with associations reaching P < 5 × 10(-8) for the first time, near the genes COL8A1-FILIP1L, IER3-DDR1, SLC16A8, TGFBR1, RAD51B, ADAMTS9 and B3GALTL. A genetic risk score combining SNP genotypes from all loci showed similar ability to distinguish cases and controls in all samples examined. Our findings provide new directions for biological, genetic and therapeutic studies of AMD.

Published
2013

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