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Cited by 288

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Enforced Expression of Bcl-2 in Monocytes Rescues Macrophages and Partially Reverses Osteopetrosis in op/op Mice

Open access
Lagasse, Eric, Weissman, Irving L.·1997·Cell

Abstract

Osteopetrotic (op/op) mice lack functional M-CSF and have depressed levels of macrophages and osteoclasts. We prepared transgenic mice (hMRP8bcl-2) that express human Bcl-2 in monocytes. In vitro hMRP8bcl-2 monocytes do not undergo apoptosis in the absence of serum and M-CSF, while op/op and wild-type monocytes die. These Bcl-2-expressing monocytes spontaneously undergo macrophage differentiation. In vivo, the op/op hMRP8bcl-2 mice show significant replenishment of tissue macrophages. Their long bone osteopetrosis is largely reversed, and extensive medullary hematopoiesis appears in the bone marrow. We propose that M-CSF augments monocyte survival, permitting them to respond to internal and external cues for their differentiation.

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Metadata

Authors
Lagasse, E., & Weissman, I. L.
Venue
Cell
Publisher
Elsevier BV
Published
1997-06
Volume
89
Issue
7
Pages
1021-1031
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2065577210
Cited by
288
References
2
FWCI
7.31
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: Enforced Expression of Bcl-2 in Monocytes Rescues Macrophages and Partially Reverses Osteopetrosis in op/op Mice. https://app.cochat.ai/papers/10.1016/s0092-8674(00)80290-1
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Lagasse, E., & Weissman, I. L. (1997). Enforced Expression of Bcl-2 in Monocytes Rescues Macrophages and Partially Reverses Osteopetrosis in op/op Mice. Cell. https://doi.org/10.1016/s0092-8674(00)80290-1

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