title: [Stromal fibroblasts of the hematopoietic organs and antibody formation in cultures].
abstract: The thymus, bone marrow- and spleen-derived stromal mechanocytes from the monolayer cultures (3rd--6th passages) when added to the suspension cultures of rabbit spleen cells according to Mishell and Dutton produced a considerable effect on the plaque-forming cells (PFC) accumulation by the 4th day of cultivation. Their action distinctly depended on the dose. Bone marrow-derived stromal mechanocytes in doses of 2.1 X 10(3)--6.25 X 10(5) caused inhibition of PFC formation in cultures. Thymus-derived stromal mechanocytes in doses of 2.75 X 10(3)--8 X 10(5) cause an increase in number of PFC; spleen-derived stromal mechanocytes in doses of 2.1 X 10(3)--1.3 X 10(4) failed to bring about any significant changes, but when the dose was increased to 8 X 10(4)--6.25 X 10(5) the inhibition of PFC formation took place. Most of the live cells and PFC were found in the free cells fraction.
mesh_terms: D000818:Animals; D000917:Antibody Formation; D000921:Antibody-Producing Cells; D001853:Bone Marrow / Q000276:immunology; D001854:Bone Marrow Cells; D002478:Cells, Cultured; D005347:Fibroblasts / Q000276:immunology*; D009928:Organ Specificity; D011817:Rabbits; D013154:Spleen / Q000166:cytology* / Q000276:immunology; D013950:Thymus Gland / Q000166:cytology / Q000276:immunology
vernacular_title: Stromal'nye fibroblasty krovetvornykh organov i antiteloobrazovanie v kul'turakh.