Mutations in the evolutionarily highly conserved KEOPS complex genes cause nephrotic syndrome with microcephaly

Galloway-Mowat syndrome (GAMOS) is a severe autosomal-recessive disease characterized by the combination of early-onset steroid-resistant nephrotic syndrome (SRNS) and microcephaly with brain anomalies. To date, mutations of WDR73 are the only known monogenic cause of GAMOS and in most affected indi...

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Bibliographic Details
Published in:	Nature genetics Vol. 49; no. 10; pp. 1529 - 1538
Main Authors:	Braun, Daniela A., Rao, Jia, Mollet, Geraldine, Schapiro, David, Daugeron, Marie-Claire, Tan, Weizhen, Gribouval, Olivier, Boyer, Olivia, Revy, Patrick, Jobst-Schwan, Tilman, Schmidt, Johanna Magdalena, Lawson, Jennifer A., Schanze, Denny, Ashraf, Shazia, Boddaert, Nathalie, Collinet, Bruno, Martin, Gaëlle, Liger, Dominique, Lovric, Svjetlana, Furlano, Monica, Guerrera, I. Chiara, Sanchez-Ferras, Oraly, Menten, Björn, Vergult, Sarah, De Rocker, Nina, Airik, Merlin, Hermle, Tobias, Shril, Shirlee, Widmeier, Eugen, Gee, Heon Yung, Choi, Won-Il, Sadowski, Carolin E., Pabst, Werner L., Warejko, Jillian, Daga, Ankana, LeBerre, Tamara Basta, Matejas, Verena, Behnam, Babak, Beeson, Brendan, Begtrup, Amber, Bruce, Malcolm, Ch'ng, Gaik-Siew, Lin, Shuan-Pei, Chang, Jui-Hsing, Chen, Chao-Huei, Cho, Megan T., Gipson, Patrick E., Hsu, Chyong-Hsin, Kari, Jameela A., Ke, Yu-Yuan, Kiraly-Borri, Cathy, Lai, Wai-ming, Lemyre, Emmanuelle, Littlejohn, Rebecca Okasha, Masri, Amira, Moghtaderi, Mastaneh, Nakamura, Kazuyuki, Praet, Marleen, Prasad, Chitra, Prytula, Agnieszka, Roeder, Elizabeth, Rump, Patrick, Schnur, Rhonda E., Shiihara, Takashi, Sinha, Manish, Soliman, Neveen A, Soulami, Kenza, Sweetser, David A., Tsai, Wen-Hui, Tsai, Jeng-Daw, Vester, Udo, Viskochil, David H., Vatanavicharn, Nithiwat, Waxler, Jessica L., Wolf, Matthias T.F., Wong, Sik-Nin, Poduri, Annapurna, Truglio, Gessica, Mane, Shrikant, Lifton, Richard P., Bouchard, Maxime, Kannu, Peter, Chitayat, David, Magen, Daniella, Calleweart, Bert, van Tilbeurgh, Herman, Zenker, Martin, Antignac, Corinne, Hildebrandt, Friedhelm
Format:	Journal Article
Language:	English
Published:	14-08-2017
Online Access:	Get full text
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Summary:	Galloway-Mowat syndrome (GAMOS) is a severe autosomal-recessive disease characterized by the combination of early-onset steroid-resistant nephrotic syndrome (SRNS) and microcephaly with brain anomalies. To date, mutations of WDR73 are the only known monogenic cause of GAMOS and in most affected individuals the molecular diagnosis remains elusive. We here identify recessive mutations of OSGEP , TP53RK, TPRKB , or LAGE3 , encoding the 4 subunits of the KEOPS complex in 33 individuals of 30 families with GAMOS. CRISPR/Cas9 knockout in zebrafish and mice recapitulates the human phenotype of microcephaly and results in early lethality. Knockdown of OSGEP , TP53RK , or TPRKB inhibits cell proliferation, which human mutations fail to rescue, and knockdown of either gene activates DNA damage response signaling and induces apoptosis. OSGEP and TP53RK molecularly interact and co-localize with the actin-regulating ARP2/3 complex. Furthermore, knockdown of OSGEP and TP53RK induces defects of the actin cytoskeleton and reduces migration rate of human podocytes, an established intermediate phenotype of SRNS. We thus identify 4 novel monogenic causes of GAMOS, describe the first link between KEOPS function and human disease, and delineate potential pathogenic mechanisms.
Bibliography:	These authors contributed equally to this work.
ISSN:	1061-4036 1546-1718
DOI:	10.1038/ng.3933