| Literature DB >> 16620915 |
Cheolho Cheong1, Young Hoon Sung, Jaehoon Lee, Yoon Sik Choi, Jaewhan Song, Changwon Kee, Han-Woong Lee.
Abstract
The murine INK4a locus encodes the critical tumor suppressor proteins, p16(INK4a) and p19(ARF). Mice lacking both p16(INK4a) and p19(ARF) (INK4a-/-) in their FVB/NJ genetic backgrounds developed cataracts and microophthalmia. Histopathologically, INK4a-/- mice showed defects in the developmental regression of the hyaloid vascular system (HVS), retinal dysplasia, and cataracts with numerous vacuolations, closely resembling human persistent hyperplastic primary vitreous (PHPV). Ocular defects, such as retinal fold and abnormal migration of lens fiber cells, were observed as early as embryonic day (E) 15.5, thereby resulting in the abnormal differentiation of the lens. We also found that ectopic expression of p16(INK4a) resulted in the induction of gammaF-crystallin, suggesting an important role of INK4a locus during mouse eye development, and also providing insights into the potential genetic basis of human cataract genesis.Entities:
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Year: 2006 PMID： 16620915 DOI： 10.1016/j.mad.2006.02.010
Source DB: PubMed Journal: Mech Ageing Dev ISSN： 0047-6374 Impact factor: 5.432