Long-term Culture of B Lymphocytes and Their Precursors from Murine Bone Marrow
Overview
Authors
Affiliations
Growth of mature B cells and their precursors from mouse bone marrow was maintained in culture for greater than 1 year. Feeder layers of adherent bone marrow cells, established in medium containing fetal calf serum and no exogenous steroids, were used to provide an in vitro environment that supported continuous growth and development of these cells. In such bone marrow cultures, the number of cells bearing membrane immunoglobulin increased gradually for 4 wk and then decreased. Between 10 and 14 wk, some of the cultures gave rise to continuously dividing B-cell populations that contained pre-B cells (producing mu heavy chains only and sensitive to transformation by Abelson murine leukemia virus) as well as mature B cells (synthesizing both light and heavy chains of IgM). Immunoglobulin molecules synthesized by cells in these populations were heterogeneous in two-dimensional gel analysis. This suggests that mature B cells arose via maturation of pre-B cells in the cultures that involved rearrangement and expression of different variable region gene segments.
Watt S, Roubelakis M Int J Mol Sci. 2025; 26(2).
PMID: 39859383 PMC: 11766050. DOI: 10.3390/ijms26020671.
Cellular niches for hematopoietic stem cells in bone marrow under normal and malignant conditions.
Omatsu Y Inflamm Regen. 2023; 43(1):15.
PMID: 36805714 PMC: 9942337. DOI: 10.1186/s41232-023-00267-5.
Resolving the hematopoietic stem cell state by linking functional and molecular assays.
Jassinskaja M, Gonka M, Kent D Blood. 2023; 142(6):543-552.
PMID: 36735913 PMC: 10644060. DOI: 10.1182/blood.2022017864.
Quesenberry P, Wen S, Goldberg L, Dooner M Leukemia. 2022; 36(12):2784-2792.
PMID: 36307485 PMC: 9712109. DOI: 10.1038/s41375-022-01715-w.
Watt S Biomater Transl. 2022; 3(1):31-54.
PMID: 35837343 PMC: 9255786. DOI: 10.12336/biomatertransl.2022.01.005.