
| 10.1016/j.celrep.2014.02.033
http://scihub22266oqcxt.onion/10.1016/j.celrep.2014.02.033
 C4049224!4049224!24656820
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free
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Cell+Rep 2014 ; 7 (1): 127-37 Nephropedia Template TP
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The number of fetal nephron progenitor cells limits ureteric branching and adult nephron endowment #MMPMID24656820Cebrian C; Asai N; D?Agati V; Costantini FCell Rep 2014[Apr]; 7 (1): 127-37 PMID24656820show ga
Nephrons, the functional units of the kidney, develop from progenitor cells (cap mesenchyme, CM) surrounding the epithelial ureteric bud (UB) tips. Reciprocal signaling between UB and CM induces nephrogenesis and UB branching. While low nephron number is implicated in hypertension and renal disease, the mechanisms determining nephron number are obscure. To test the importance of nephron progenitor cell number, we genetically ablated 40% of these cells, asking if this would limit kidney size and nephron number, or if compensatory mechanisms would allow the developing organ to recover. The reduction in CM cell number decreased the rate of branching, in turn allowing the number of CM cells per UB tip to normalize, revealing a self-correction mechanism. However, the retarded UB branching impaired kidney growth, leaving a permanent nephron deficit. Thus, the number of fetal nephron progenitor cells is an important determinant of nephron endowment, largely via its effect on UB branching.�
  
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