scholarly journals The homeodomain transcription factor PITX2 is required for specifying correct cell fates and establishing angiogenic privilege in the developing cornea

2014 ◽  
Vol 243 (11) ◽  
pp. 1391-1400 ◽  
Author(s):  
Philip J. Gage ◽  
Chen Kuang ◽  
Amanda L. Zacharias
Development ◽  
1999 ◽  
Vol 126 (10) ◽  
pp. 2083-2092 ◽  
Author(s):  
G.V. Reddy ◽  
V. Rodrigues

Specification of cell fate in the adult sensory organs is known to be dependent on intrinsic and extrinsic signals. We show that the homeodomain transcription factor Prospero (Pros) acts as an intrinsic signal for the specification of cell fates within the mechanosensory lineage. The sensory organ precursors divide to give rise to two secondary progenitors - PIIa and PIIb. Pros is expressed in PIIb, which gives rise to the neuron and thecogen cells. Loss of Pros function affects the identity of PIIb and neurons fail to differentiate. Pros misexpression is sufficient for the transformation of PIIa to PIIb fate. The expression of Pros in the normal PIIb cell appears to be regulated by Notch signaling.


Blood ◽  
2015 ◽  
Vol 125 (5) ◽  
pp. 803-814 ◽  
Author(s):  
Jacob T. Jackson ◽  
Chayanica Nasa ◽  
Wei Shi ◽  
Nicholas D. Huntington ◽  
Clifford W. Bogue ◽  
...  

Key Points Hhex regulates development of diverse lymphoid lineages. Hhex regulates cycling of lymphoid precursors.


2006 ◽  
Vol 281 (50) ◽  
pp. 38385-38395 ◽  
Author(s):  
Therese B. Deramaudt ◽  
Mira M. Sachdeva ◽  
Melanie P. Wescott ◽  
Yuting Chen ◽  
Doris A. Stoffers ◽  
...  

FEBS Letters ◽  
1999 ◽  
Vol 461 (3) ◽  
pp. 229-234 ◽  
Author(s):  
Tilo Moede ◽  
Barbara Leibiger ◽  
Hamedeh Ghanaat Pour ◽  
Per-Olof Berggren ◽  
Ingo B Leibiger

2018 ◽  
Vol 39 (2) ◽  
pp. 238-255 ◽  
Author(s):  
Guillaume Trébuchet ◽  
Pierre B. Cattenoz ◽  
János Zsámboki ◽  
David Mazaud ◽  
Daria E. Siekhaus ◽  
...  

2006 ◽  
Vol 84 (2) ◽  
pp. 257-262 ◽  
Author(s):  
W Y Chang ◽  
F KhosrowShahian ◽  
M Wolanski ◽  
R Marshall ◽  
W McCormick ◽  
...  

In contrast to the pattern of limb emergence in mammals, chicks, and the newt N. viridescens, embryos such as Xenopus laevis and Eleutherodactylus coqui initiate pelvic limb buds before they develop pectoral ones. We studied the expression of Pitx1 in X. laevis and E. coqui to determine if this paired-like homeodomain transcription factor directs differentiation specifically of the hindlimb, or if it directs the second pair of limbs to form, namely the forelimbs. We also undertook to determine if embryonic expression patterns were recapitulated during the regeneration of an amputated limb bud. Pitx1 is expressed in hindlimbs in both X. laevis and E. coqui, and expression is similar in both developing and regenerating limb buds. Expression in hindlimbs is restricted to regions of proliferating mesenchyme.Key words: regeneration, Xenopus laevis, limb bud, Pitx1 protein, specification.


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