Exome Capture Reveals ZNF423 and CEP164 Mutations, Linking Renal Ciliopathies to DNA Damage Response Signaling

Chaki, M., Airik, R., Ghosh, A.K., Giles, R.H., Chen, R., Slaats, G.G., Wang, H., Hurd, T.W., Zhou, W., Cluckey, A., Gee, H.Y., Ramaswami, G., Hong, C.J., Hamilton, B.A., Cervenka, I., Ganji, R.S., Bryja, V., Arts, H.H., van Reeuwijk, J., Oud, M.M., Letteboer, S.J., Roepman, R., Husson, H., Ibraghimov-Beskrovnaya, O., Yasunaga, T., Walz, G., Eley, L., Sayer, J.A., Schermer, B., Liebau, M.C., Benzing, T., Le Corre, S., Drummond, I., Janssen, S., Allen, S.J., Natarajan, S., O'Toole, J.F., Attanasio, M., Saunier, S., Antignac, C., Koenekoop, R.K., Ren, H., Lopez, I., Nayir, A., Stoetzel, C., Dollfus, H., Massoudi, R., Gleeson, J.G., Andreoli, S.P., Doherty, D.G., Lindstrad, A., Golzio, C., Katsanis, N., Pape, L., Abboud, E.B., Al-Rajhi, A.A., Lewis, R.A., Omran, H., Lee, E.Y., Wang, S., Sekiguchi, J.M., Saunders, R., Johnson, C.A., Garner, E., Vanselow, K., Andersen, J.S., Shlomai, J., Nurnberg, G., Nurnberg, P., Levy, S., Smogorzewska, A., Otto, E.A., and Hildebrandt, F.
Cell   150(3): 533-548 (Journal)
Registered Authors
Drummond, Iain, Katsanis, Nicholas, Sayer, John A., Zhou, Weibin
MeSH Terms
  • Animals
  • Cilia/metabolism
  • DNA Damage*
  • DNA-Binding Proteins/metabolism*
  • Exome*
  • Gene Knockdown Techniques
  • Genes, Recessive
  • Humans
  • Kidney Diseases, Cystic/genetics*
  • Mice
  • Microtubule Proteins/metabolism*
  • Signal Transduction
  • Zebrafish/embryology
  • Zebrafish/metabolism
22863007 Full text @ Cell

Nephronophthisis-related ciliopathies (NPHP-RC) are degenerative recessive diseases that affect kidney, retina, and brain. Genetic defects in NPHP gene products that localize to cilia and centrosomes defined them as "ciliopathies.” However, disease mechanisms remain poorly understood. Here, we identify by whole-exome resequencing, mutations of MRE11, ZNF423, and CEP164 as causing NPHP-RC. All three genes function within the DNA damage response (DDR) pathway. We demonstrate that, upon induced DNA damage, the NPHP-RC proteins ZNF423, CEP164, and NPHP10 colocalize to nuclear foci positive for TIP60, known to activate ATM at sites of DNA damage. We show that knockdown of CEP164 or ZNF423 causes sensitivity to DNA damaging agents and that cep164 knockdown in zebrafish results in dysregulated DDR and an NPHP-RC phenotype. Our findings link degenerative diseases of the kidney and retina, disorders of increasing prevalence, to mechanisms of DDR.

Genes / Markers
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Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Engineered Foreign Genes