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Organ interactions in the regulation of hematopoiesis: In vitro interactions of bone, thymus, and spleen with bone marrow stem cells in normal, Sl/Sl d and W/W v mice
Author(s) -
Cline Martin J.,
Le Fevre Carol,
Golde David W.
Publication year - 1977
Publication title -
journal of cellular physiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.529
H-Index - 174
eISSN - 1097-4652
pISSN - 0021-9541
DOI - 10.1002/jcp.1040900113
Subject(s) - spleen , haematopoiesis , bone marrow , stem cell , in vitro , microbiology and biotechnology , biology , immunology , biochemistry
Hematopoietic cell differentiation is influenced by organ‐dependent microenvironmental factors as well as humoral regulators. A technique is described for examining certain aspects of the hemopoietic inductive microenvironment in vitro. Suspension and agar cultures of mouse bone marrow were used to study the effects of organ stromal factors on cellular proliferation and differentiation. Bone, spleen, and thymus fragments from irradiated mice were placed in direct contact with or separated by a Nuclepore membrane from syngeneic marrow cells growing in suspension cultures. Normal adult mouse bone and spleen influenced granulocytic differentiation as well as cell proliferation. In this system, bone marrow and organ fragments from W/W v and Sl/Sl d mice behaved like those of their non‐anemic littermates. The most prominent difference between W/W v and Sl/Sl a mice and their normal counterparts was observed in the induction of CFU‐C from splenic precursors under the influence of CSA. In both types of anemic mice, in vitro generation of CFU‐C from spleen was abnormal in young animals but was corrected by four months of age.