Survival of Hoxa13 homozygous mutants reveals a novel role in digit patterning and appendicular skeletal development.
Survival of Hoxa13 homozygous mutants reveals a novel role in digit patterning and appendicular skeletal development.
复制标题
DOI:
10.1002/dvdy.22183
复制
发表时间:
2010-02
影响因子:
2.5
通讯作者:
Stadler, H. Scott
中科院分区:
文献类型:
--
作者:
Perez, Wilma D.;Weller, Crystal R.;Shou, Siming;Stadler, H. Scott
The loss of HOXA13 function severely disrupts embryonic limb development. However, because embryos lacking HOXA13 die by mid-gestation, the defects present in the mutant limb could arise as a secondary consequence of failing embryonic health. In our analysis of the mutant Hoxa13GFP allele, we identified a surviving cohort of homozygous mutants exhibiting severe limb defects including: missing phalanx elements, fusions of the carpal/tarsal elements, and significant reductions in metacarpal/metatarsal length. Characterization of prochondrogenic genes in the affected carpal/tarsal regions revealed significant reduction in Gdf5 expression, whereas Bmp2 expression was significantly elevated. Analysis of Gdf5 mRNA localization also revealed diffuse expression in the carpal/tarsal anlagen, suggesting a role for HOXA13 in the organization of the cells necessary to delineate individual carpal/tarsal elements. Together these results identify Gdf5 as a potential target gene of HOXA13 target gene and confirm a specific role for HOXA13 during appendicular skeletal development.
登录
查看更多内容
影响因子:
10.5
作者:
Akiyama, H;Chaboissier, MC;de Crombrugghe, B
通讯作者:
de Crombrugghe, B
影响因子:
5.3
作者:
Hiratsuka, S;Kataoka, Y;Shibuya, M
通讯作者:
Shibuya, M
DOI:
10.1073/pnas.0504750102
发表时间:
2005-10-11
影响因子:
11.1
作者:
Akiyama, H;Kim, JE;de Crombrugghe, B
通讯作者:
de Crombrugghe, B
影响因子:
2.7
作者:
Storm, EE;Kingsley, DM
通讯作者:
Kingsley, DM
影响因子:
2.7
作者:
Ng, LJ;Wheatley, S;Koopman, P
通讯作者:
Koopman, P