The Osteoclast Differentiation Factor Osteoprotegerin-Ligand Is Essential for Mammary Gland Development
In: Cell, Jg. 103 (2000-09-01), S. 41-50
Online
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Zugriff:
Osteoprotegerin-ligand (OPGL) is a key osteoclast differentiation/activation factor essential for bone remodeling. We report that mice lacking OPGL or its receptor RANK fail to form lobulo-alveolar mammary structures during pregnancy, resulting in death of newborns. Transplantation and OPGL-rescue experiments in opgl−/− and rank−/− pregnant females showed that OPGL acts directly on RANK-expressing mammary epithelial cells. The effects of OPGL are autonomous to epithelial cells. The mammary gland defect in female opgl−/− mice is characterized by enhanced apoptosis and failures in proliferation and PKB activation in lobulo-alveolar buds that can be reversed by recombinant OPGL treatment. These data provide a novel paradigm in mammary gland development and an evolutionary rationale for hormonal regulation and gender bias of osteoporosis in females.
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The Osteoclast Differentiation Factor Osteoprotegerin-Ligand Is Essential for Mammary Gland Development
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Autor/in / Beteiligte Person: | Penninger, Josef M. ; Fata, Jimmie E. ; Voura, Evelyn B. ; Irie-Sasaki, Junko ; Moorehead, Roger A. ; Khokha, Rama ; Elliott, Robin ; Boyle, William J. ; Li, Ji ; Kong, Young-Yun ; Sasaki, Takehiko ; Scully, Sheila ; Lacey, David L. |
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Zeitschrift: | Cell, Jg. 103 (2000-09-01), S. 41-50 |
Veröffentlichung: | Elsevier BV, 2000 |
Medientyp: | unknown |
ISSN: | 0092-8674 (print) |
DOI: | 10.1016/s0092-8674(00)00103-3 |
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