Person: Freedman, Matthew
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Freedman
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Matthew
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Freedman, Matthew
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Publication Regulation of the glucocorticoid receptor via a BET-dependent enhancer drives antiandrogen resistance in prostate cancer(eLife Sciences Publications, Ltd, 2017) Shah, Neel; Wang, Ping; Wongvipat, John; Karthaus, Wouter R; Abida, Wassim; Armenia, Joshua; Rockowitz, Shira; Drier, Yotam; Bernstein, Bradley; Long, Henry; Freedman, Matthew; Arora, Vivek K; Zheng, Deyou; Sawyers, Charles LIn prostate cancer, resistance to the antiandrogen enzalutamide (Enz) can occur through bypass of androgen receptor (AR) blockade by the glucocorticoid receptor (GR). In contrast to fixed genomic alterations, here we show that GR-mediated antiandrogen resistance is adaptive and reversible due to regulation of GR expression by a tissue-specific enhancer. GR expression is silenced in prostate cancer by a combination of AR binding and EZH2-mediated repression at the GR locus, but is restored in advanced prostate cancers upon reversion of both repressive signals. Remarkably, BET bromodomain inhibition resensitizes drug-resistant tumors to Enz by selectively impairing the GR signaling axis via this enhancer. In addition to revealing an underlying molecular mechanism of GR-driven drug resistance, these data suggest that inhibitors of broadly active chromatin-readers could have utility in nuanced clinical contexts of acquired drug resistance with a more favorable therapeutic index.Publication The 8q24 Cancer Risk Variant Rs6983267 Shows Long-Range Interaction With MYC in Colorectal Cancer(Springer Science and Business Media LLC, 2009-06-28) Pomerantz, Mark; Ahmadiyeh, Nasim; Jia, Li; Herman, Paula; Verzi, Michael; Doddapaneni, Harshavardhan; Beckwith, Christine A.; Chan, Jennifer A.; Hills, Adam; Davis, Matt; Yao, Keluo; Kehoe, Sarah M.; Lenz, Heinz-Josef; Haiman, Christopher A.; Yan, Chunli; Henderson, Brian E.; Frenkel, Baruch; Barretina, Jordi; Bass, Adam; Tabernero, Josep; Baselga, Jose; Regan, Meredith; Manak, J. Robert; Shivdasani, Ramesh; Coetzee, Gerhard A.; Freedman, MatthewAn inherited variant on chromosome 8q24, rs6983267, is significantly associated with cancer pathogenesis. We present evidence that this region is a transcriptional enhancer, that the risk region physically interacts with the MYC proto-oncogene, and that the alleles of rs6983267 differentially bind transcription factor 7-like 2 (TCF7L2). These data provide strong support for a biological mechanism underlying this non-protein coding risk variant.Publication A novel genomic alteration of LSAMP associates with aggressive prostate cancer in African American men(Elsevier, 2015) Petrovics, Gyorgy; Li, Hua; Stümpel, Tanja; Tan, Shyh-Han; Young, Denise; Katta, Shilpa; Li, Qiyuan; Ying, Kai; Klocke, Bernward; Ravindranath, Lakshmi; Kohaar, Indu; Chen, Yongmei; Ribli, Dezső; Grote, Korbinian; Zou, Hua; Cheng, Joseph; Dalgard, Clifton L.; Zhang, Shimin; Csabai, István; Kagan, Jacob; Takeda, David; Loda, Massimo; Srivastava, Sudhir; Scherf, Matthias; Seifert, Martin; Gaiser, Timo; McLeod, David G.; Szallasi, Zoltan; Ebner, Reinhard; Werner, Thomas; Sesterhenn, Isabell A.; Freedman, Matthew; Dobi, Albert; Srivastava, ShivEvaluation of cancer genomes in global context is of great interest in light of changing ethnic distribution of the world population. We focused our study on men of African ancestry because of their disproportionately higher rate of prostate cancer (CaP) incidence and mortality. We present a systematic whole genome analyses, revealing alterations that differentiate African American (AA) and Caucasian American (CA) CaP genomes. We discovered a recurrent deletion on chromosome 3q13.31 centering on the LSAMP locus that was prevalent in tumors from AA men (cumulative analyses of 435 patients: whole genome sequence, 14; FISH evaluations, 101; and SNP array, 320 patients). Notably, carriers of this deletion experienced more rapid disease progression. In contrast, PTEN and ERG common driver alterations in CaP were significantly lower in AA prostate tumors compared to prostate tumors from CA. Moreover, the frequency of inter-chromosomal rearrangements was significantly higher in AA than CA tumors. These findings reveal differentially distributed somatic mutations in CaP across ancestral groups, which have implications for precision medicine strategies.Publication Inference of transcriptional regulation in cancers(Proceedings of the National Academy of Sciences, 2015) Jiang, Peng; Freedman, Matthew; Liu, Jun; Liu, XiaoleWe developed an efficient and accurate computational framework, RABIT (regression analysis with background integration), and comprehensively integrated public transcription factor (TF)-binding profiles with TCGA tumor-profiling datasets in 18 cancer types. To systematically search for cancer-associated TFs, RABIT controls the effect of tumor-confounding factors on transcriptional regulation, such as copy number alteration, DNA methylation, and TF somatic mutation. Our predicted TF regulatory activity in tumors is highly consistent with the knowledge from cancer gene databases and reveals many previously unidentified cancer-associated TFs. We also analyzed RNA-binding protein regulation in cancer and demonstrated that RABIT is a general platform for predicting oncogenic gene expression regulators.Publication The androgen receptor cistrome is extensively reprogrammed in human prostate tumorigenesis(2015) Pomerantz, Mark; Li, Fugen; Takeda, David; Lenci, Romina; Chonkar, Apurva; Chabot, Matthew; Cejas, Paloma; Vazquez, Francisca; Cook, Jennifer; Shivdasani, Ramesh; Bowden, Michaela; Lis, Rosina; Hahn, William; Kantoff, Philip; Brown, Myles; Loda, Massimo; Long, Henry; Freedman, MatthewMaster transcription factors interact with DNA to establish cell-type identity and to regulate gene expression in mammalian cells1,2. The genome-wide map of these transcription factor binding sites has been termed the cistrome3. Here we show that the androgen receptor (AR) cistrome undergoes extensive reprogramming during prostate epithelial transformation in man. Using human prostate tissue, we observed a core set of AR binding sites that are consistently reprogrammed in tumors. FOXA1 and HOXB13, co-localized with the reprogrammed AR sites in human tumor tissue. Introduction of FOXA1 and HOXB13 into an immortalized prostate cell line reprogrammed the AR cistrome to resemble that of a prostate tumor, functionally linking these specific factors to AR reprogramming. These findings offer mechanistic insights into a key set of events that drive normal prostate epithelium towards transformation and establish the centrality of epigenetic reprogramming in human prostate tumorigenesis.Publication Common variants at theCHEK2gene locus and risk of epithelial ovarian cancer(Oxford University Press (OUP), 2015) Lawrenson, Kate; Iversen, Edwin S.; Tyrer, Jonathan; Weber, Rachel Palmieri; Concannon, Patrick; Hazelett, Dennis J.; Li, Qiyuan; Marks, Jeffrey R.; Berchuck, Andrew; Lee, Janet M.; Aben, Katja K.H.; Anton-Culver, Hoda; Antonenkova, Natalia; Bandera, Elisa V.; Bean, Yukie; Beckmann, Matthias W.; Bisogna, Maria; Bjorge, Line; Bogdanova, Natalia; Brinton, Louise A.; Brooks-Wilson, Angela; Bruinsma, Fiona; Butzow, Ralf; Campbell, Ian G.; Carty, Karen; Chang-Claude, Jenny; Chenevix-Trench, Georgia; Chen, Ann; Chen, Zhihua; Cook, Linda S.; Cramer, Daniel; Cunningham, Julie M.; Cybulski, Cezary; Plisiecka-Halasa, Joanna; Dennis, Joe; Dicks, Ed; Doherty, Jennifer A.; Dörk, Thilo; du Bois, Andreas; Eccles, Diana; Easton, Douglas T.; Edwards, Robert P.; Eilber, Ursula; Ekici, Arif B.; Fasching, Peter A.; Fridley, Brooke L.; Gao, Yu-Tang; Gentry-Maharaj, Aleksandra; Giles, Graham G.; Glasspool, Rosalind; Goode, Ellen L.; Goodman, Marc T.; Gronwald, Jacek; Harter, Philipp; Hasmad, Hanis Nazihah; Hein, Alexander; Heitz, Florian; Hildebrandt, Michelle A.T.; Hillemanns, Peter; Hogdall, Estrid; Hogdall, Claus; Hosono, Satoyo; Jakubowska, Anna; Paul, James; Jensen, Allan; Karlan, Beth Y.; Kjaer, Susanne Kruger; Kelemen, Linda E.; Kellar, Melissa; Kelley, Joseph L.; Kiemeney, Lambertus A.; Krakstad, Camilla; Lambrechts, Diether; Lambrechts, Sandrina; Le, Nhu D.; Lee, Alice W.; Cannioto, Rikki; Leminen, Arto; Lester, Jenny; Levine, Douglas A.; Liang, Dong; Lissowska, Jolanta; Lu, Karen; Lubinski, Jan; Lundvall, Lene; Massuger, Leon F.A.G.; Matsuo, Keitaro; McGuire, Valerie; McLaughlin, John R.; Nevanlinna, Heli; McNeish, Iain; Menon, Usha; Modugno, Francesmary; Moysich, Kirsten B.; Narod, Steven A.; Nedergaard, Lotte; Ness, Roberta B.; Noor Azmi, Mat Adenan; Odunsi, Kunle; Olson, Sara H.; Orlow, Irene; Orsulic, Sandra; Pearce, Celeste L.; Pejovic, Tanja; Pelttari, Liisa M.; Permuth-Wey, Jennifer; Phelan, Catherine M.; Pike, Malcolm C.; Poole, Elizabeth M.; Ramus, Susan J.; Risch, Harvey A.; Rosen, Barry; Rossing, Mary Anne; Rothstein, Joseph H.; Rudolph, Anja; Runnebaum, Ingo B.; Rzepecka, Iwona K.; Salvesen, Helga B.; Budzilowska, Agnieszka; Sellers, Thomas A.; Shu, Xiao-Ou; Shvetsov, Yurii B.; Siddiqui, Nadeem; Sieh, Weiva; Song, Honglin; Southey, Melissa C.; Sucheston, Lara; Tangen, Ingvild L.; Teo, Soo-Hwang; Terry, Kathryn; Thompson, Pamela J.; Timorek, Agnieszka; Tworoger, Shelley; Nieuwenhuysen, Els Van; Vergote, Ignace; Vierkant, Robert A.; Wang-Gohrke, Shan; Walsh, Christine; Wentzensen, Nicolas; Whittemore, Alice S.; Wicklund, Kristine G.; Wilkens, Lynne R.; Woo, Yin-Ling; Wu, Xifeng; Wu, Anna H.; Yang, Hannah; Zheng, Wei; Ziogas, Argyrios; Coetzee, Gerhard A.; Freedman, Matthew; Monteiro, Alvaro N.A.; Moes-Sosnowska, Joanna; Kupryjanczyk, Jolanta; Pharoah, Paul D.; Gayther, Simon A.; Schildkraut, Joellen M.Genome-wide association studies have identified 20 genomic regions associated with risk of epithelial ovarian cancer (EOC), but many additional risk variants may exist. Here, we evaluated associations between common genetic variants [single nucleotide polymorphisms (SNPs) and indels] in DNA repair genes and EOC risk. We genotyped 2896 common variants at 143 gene loci in DNA samples from 15 397 patients with invasive EOC and controls. We found evidence of associations with EOC risk for variants at FANCA, EXO1, E2F4, E2F2, CREB5 and CHEK2 genes (P ≤ 0.001). The strongest risk association was for CHEK2 SNP rs17507066 with serous EOC (P = 4.74 x 10(-7)). Additional genotyping and imputation of genotypes from the 1000 genomes project identified a slightly more significant association for CHEK2 SNP rs6005807 (r (2) with rs17507066 = 0.84, odds ratio (OR) 1.17, 95% CI 1.11-1.24, P = 1.1×10(-7)). We identified 293 variants in the region with likelihood ratios of less than 1:100 for representing the causal variant. Functional annotation identified 25 candidate SNPs that alter transcription factor binding sites within regulatory elements active in EOC precursor tissues. In The Cancer Genome Atlas dataset, CHEK2 gene expression was significantly higher in primary EOCs compared to normal fallopian tube tissues (P = 3.72×10(-8)). We also identified an association between genotypes of the candidate causal SNP rs12166475 (r (2) = 0.99 with rs6005807) and CHEK2 expression (P = 2.70×10(-8)). These data suggest that common variants at 22q12.1 are associated with risk of serous EOC and CHEK2 as a plausible target susceptibility gene.Publication Snx3 Regulates Recycling of the Transferrin Receptor and Iron Assimilation(Elsevier BV, 2013) Chen, Caiyong; Garcia-Santos, Daniel; Ishikawa, Yuichi; Seguin, Alexandra; Li, Liangtao; Fegan, Katherine H.; Hildick-Smith, Gordon J.; Shah, Darshan; Cooney, James; Chen, Wen; King, Michael; Yien, Yvette; Schultz, Iman J.; Anderson, Heidi; Dalton, Abigail; Freedman, Matthew; Kingsley, Paul D.; Palis, James; Hattangadi, Shilpa M.; Lodish, Harvey F.; Ward, Daniel Alexander; Kaplan, Jerry; Maeda, Takahiro; Ponka, Prem; Paw, Barry HtinSorting of endocytic ligands and receptors is critical for diverse cellular processes. The physiological significance of endosomal sorting proteins in vertebrates, however, remains largely unknown. Here we report that sorting nexin 3 (Snx3) facilitates the recycling of transferrin receptor (Tfrc) and thus is required for the proper delivery of iron to erythroid progenitors. Snx3 is highly expressed in vertebrate hematopoietic tissues. Silencing of Snx3 results in anemia and hemoglobin defects in vertebrates due to impaired transferrin (Tf)-mediated iron uptake and its accumulation in early endosomes. This impaired iron assimilation can be complemented with non-Tf iron chelates. We show that Snx3 and Vps35, a component of the retromer, interact with Tfrc to sort it to the recycling endosomes. Our findings uncover a role of Snx3 in regulating Tfrc recycling, iron homeostasis, and erythropoiesis. Thus, the identification of Snx3 provides a genetic tool for exploring erythropoiesis and disorders of iron metabolism.Publication Atlas of prostate cancer heritability in European and African-American men pinpoints tissue-specific regulation(Nature Publishing Group, 2016) Gusev, Alexander; Shi, Huwenbo; Kichaev, Gleb; Pomerantz, Mark; Li, Fugen; Long, Henry; Ingles, Sue A.; Kittles, Rick A.; Strom, Sara S.; Rybicki, Benjamin A.; Nemesure, Barbara; Isaacs, William B.; Zheng, Wei; Pettaway, Curtis A.; Yeboah, Edward D.; Tettey, Yao; Biritwum, Richard B.; Adjei, Andrew A.; Tay, Evelyn; Truelove, Ann; Niwa, Shelley; Chokkalingam, Anand P.; John, Esther M.; Murphy, Adam B.; Signorello, Lisa B; Carpten, John; Leske, M. Cristina; Wu, Suh-Yuh; Hennis, Anslem J. M.; Neslund-Dudas, Christine; Hsing, Ann W.; Chu, Lisa; Goodman, Phyllis J.; Klein, Eric A.; Witte, John S.; Casey, Graham; Kaggwa, Sam; Cook, Michael B.; Stram, Daniel O.; Blot, William J.; Eeles, Rosalind A.; Easton, Douglas; Kote-Jarai, ZSofia; Al Olama, Ali Amin; Benlloch, Sara; Muir, Kenneth; Giles, Graham G.; Southey, Melissa C.; Fitzgerald, Liesel M.; Gronberg, Henrik; Wiklund, Fredrik; Aly, Markus; Henderson, Brian E.; Schleutker, Johanna; Wahlfors, Tiina; Tammela, Teuvo L. J.; Nordestgaard, Børge G.; Key, Tim J.; Travis, Ruth C.; Neal, David E.; Donovan, Jenny L.; Hamdy, Freddie C.; Pharoah, Paul; Pashayan, Nora; Khaw, Kay-Tee; Stanford, Janet L.; Thibodeau, Stephen N.; McDonnell, Shannon K.; Schaid, Daniel J.; Maier, Christiane; Vogel, Walther; Luedeke, Manuel; Herkommer, Kathleen; Kibel, Adam S.; Cybulski, Cezary; Wokolorczyk, Dominika; Kluzniak, Wojciech; Cannon-Albright, Lisa; Teerlink, Craig; Brenner, Hermann; Dieffenbach, Aida K.; Arndt, Volker; Park, Jong Y.; Sellers, Thomas A.; Lin, Hui-Yi; Slavov, Chavdar; Kaneva, Radka; Mitev, Vanio; Batra, Jyotsna; Spurdle, Amanda; Clements, Judith A.; Teixeira, Manuel R.; Pandha, Hardev; Michael, Agnieszka; Paulo, Paula; Maia, Sofia; Kierzek, Andrzej; Cook, Margaret; Guy, Michelle; Govindasami, Koveela; Leongamornlert, Daniel; Sawyer, Emma J.; Wilkinson, Rosemary; Saunders, Edward J.; Tymrakiewicz, Malgorzata; Dadaev, Tokhir; Morgan, Angela; Fisher, Cyril; Hazel, Steve; Livni, Naomi; Lophatananon, Artitaya; Pedersen, John; Hopper, John L.; Adolfson, Jan; Stattin, Paer; Johansson, Jan-Erik; Cavalli-Bjoerkman, Carin; Karlsson, Ami; Broms, Michael; Auvinen, Anssi; Kujala, Paula; Maeaettaenen, Liisa; Murtola, Teemu; Taari, Kimmo; Weischer, Maren; Nielsen, Sune F.; Klarskov, Peter; Roder, Andreas; Iversen, Peter; Wallinder, Hans; Gustafsson, Sven; Cox, Angela; Brown, Paul; George, Anne; Marsden, Gemma; Lane, Athene; Davis, Michael; Tillmans, Lori; Riska, Shaun; Wang, Liang; Rinckleb, Antje; Lubiski, Jan; Stegmaier, Christa; Pow-Sang, Julio; Park, Hyun; Radlein, Selina; Rincon, Maria; Haley, James; Zachariah, Babu; Kachakova, Darina; Popov, Elenko; Mitkova, Atanaska; Vlahova, Aleksandrina; Dikov, Tihomir; Christova, Svetlana; Heathcote, Peter; Wood, Glenn; Malone, Greg; Saunders, Pamela; Eckert, Allison; Yeadon, Trina; Kerr, Kris; Collins, Angus; Turner, Megan; Srinivasan, Srilakshmi; Kedda, Mary-Anne; Alexander, Kimberly; Omara, Tracy; Wu, Huihai; Henrique, Rui; Pinto, Pedro; Santos, Joana; Barros-Silva, Joao; Conti, David V.; Albanes, Demetrius; Berg, Christine; Berndt, Sonja I.; Campa, Daniele; Crawford, E. David; Diver, W. Ryan; Gapstur, Susan M.; Gaziano, John; Giovannucci, Edward; Hoover, Robert; Hunter, David; Johansson, Mattias; Kraft, Phillip; Le Marchand, Loic; Lindström, Sara; Navarro, Carmen; Overvad, Kim; Riboli, Elio; Siddiq, Afshan; Stevens, Victoria L.; Trichopoulos, Dimitrios; Vineis, Paolo; Yeager, Meredith; Trynka, Gosia; Raychaudhuri, Soumya; Schumacher, Frederick R.; Price, Alkes; Freedman, Matthew; Haiman, Christopher A.; Pasaniuc, BogdanAlthough genome-wide association studies have identified over 100 risk loci that explain ∼33% of familial risk for prostate cancer (PrCa), their functional effects on risk remain largely unknown. Here we use genotype data from 59,089 men of European and African American ancestries combined with cell-type-specific epigenetic data to build a genomic atlas of single-nucleotide polymorphism (SNP) heritability in PrCa. We find significant differences in heritability between variants in prostate-relevant epigenetic marks defined in normal versus tumour tissue as well as between tissue and cell lines. The majority of SNP heritability lies in regions marked by H3k27 acetylation in prostate adenoc7arcinoma cell line (LNCaP) or by DNaseI hypersensitive sites in cancer cell lines. We find a high degree of similarity between European and African American ancestries suggesting a similar genetic architecture from common variation underlying PrCa risk. Our findings showcase the power of integrating functional annotation with genetic data to understand the genetic basis of PrCa.Publication Genetic Variation in the HSD17B1 Gene and Risk of Prostate Cancer(Public Library of Science, 2005) Kraft, Peter; Pharoah, Paul; Chanock, Stephen J; Albanes, Demetrius; Kolonel, Laurence N; Hayes, Richard B; Andriole, Gerald; Berg, Christine; Boeing, Heiner; Burtt, Noel P; Bueno-de-Mesquita, Bas; Calle, Eugenia E; Cann, Howard; Canzian, Federico; Crawford, David E; Dunning, Alison M; Feigelson, Heather S; Gonzalez, Carlos Alberto; Haiman, Christopher A; Hallmans, Goran; Henderson, Brian E; Kaaks, Rudolf; Key, Timothy; Marchand, Loic Le; Overvad, Kim; Palli, Domenico; Pike, Malcolm C; Riboli, Elio; Rodriguez, Carmen; Setiawan, Wendy V; Stram, Daniel O; Thomas, Gilles; Thun, Michael J; Travis, Ruth; Trichopoulou, Antonia; Virtamo, Jarmo; Wacholder, Sholom; Altshuler, David; Chen, Yin-Ching; Freedman, Matthew; Gaziano, John; Giovannucci, Edward; Hirschhorn, Joel; Hunter, David; Ma, Jing; Stampfer, MeirSteroid hormones are believed to play an important role in prostate carcinogenesis, but epidemiological evidence linking prostate cancer and steroid hormone genes has been inconclusive, in part due to small sample sizes or incomplete characterization of genetic variation at the locus of interest. Here we report on the results of a comprehensive study of the association between HSD17B1 and prostate cancer by the Breast and Prostate Cancer Cohort Consortium, a large collaborative study. HSD17B1 encodes 17β-hydroxysteroid dehydrogenase 1, an enzyme that converts dihydroepiandrosterone to the testosterone precursor Δ5-androsterone-3β,17β-diol and converts estrone to estradiol. The Breast and Prostate Cancer Cohort Consortium researchers systematically characterized variation in HSD17B1 by targeted resequencing and dense genotyping; selected haplotype-tagging single nucleotide polymorphisms (htSNPs) that efficiently predict common variants in U.S. and European whites, Latinos, Japanese Americans, and Native Hawaiians; and genotyped these htSNPs in 8,290 prostate cancer cases and 9,367 study-, age-, and ethnicity-matched controls. We found no evidence that HSD17B1 htSNPs (including the nonsynonymous coding SNP S312G) or htSNP haplotypes were associated with risk of prostate cancer or tumor stage in the pooled multiethnic sample or in U.S. and European whites. Analyses stratified by age, body mass index, and family history of disease found no subgroup-specific associations between these HSD17B1 htSNPs and prostate cancer. We found significant evidence of heterogeneity in associations between HSD17B1 haplotypes and prostate cancer across ethnicity: one haplotype had a significant (p < 0.002) inverse association with risk of prostate cancer in Latinos and Japanese Americans but showed no evidence of association in African Americans, Native Hawaiians, or whites. However, the smaller numbers of Latinos and Japanese Americans in this study makes these subgroup analyses less reliable. These results suggest that the germline variants in HSD17B1 characterized by these htSNPs do not substantially influence the risk of prostate cancer in U.S. and European whites.Publication Admixture mapping of 15,280 African Americans identifies obesity susceptibility loci on chromosomes 5 and X(Public Library of Science, 2009) Cheng, Ching-Yu; Patterson, Nick; Haiman, Christopher A.; Harris, Tamara B.; Xing, Chao; John, Esther M.; Ambrosone, Christine B.; Brancati, Frederick L.; Coresh, Josef; Press, Michael F.; Parekh, Rulan S.; Klag, Michael J.; Meoni, Lucy A.; Hsueh, Wen-Chi; Fejerman, Laura; Pawlikowska, Ludmila; Jandorf, Lina H.; Bandera, Elisa V.; Ciupak, Gregory L.; Nalls, Michael A.; Akylbekova, Ermeg L.; Orwoll, Eric S.; Leak, Tennille S.; Miljkovic, Iva; Li, Rongling; Ursin, Giske; Bernstein, Leslie; Ardlie, Kristin; Taylor, Herman A.; Boerwinckle, Eric; Zmuda, Joseph M.; Henderson, Brian E.; Wilson, James G.; Kao, W. H. Linda; Tandon, Arti; Freedman, Matthew; Patterson, Nicholas; Reich, David