Bulletin of Experimental Biology and Medicine

, Volume 127, Issue 2, pp 169–171 | Cite as

Hemopoietic microenvironment-transferring units and inducible hemopoietic stromal precursors in the bone marrow of thymectomized mice

  • T. V. Todriya
Biophysics and Biochemistry
  • 19 Downloads

Abstract

The method of heterotopic transplantation of the bone marrow was used to study the effect of thymectomy on clonogenic and inducible hemopoietic stromal precursors in adult rats. The self-maintenance or clonogenic capacity of stromal precursors was evaluated by retransplantation of primary hemopoietic foci. The kinetics of the formation of ectopic foci from thymectomized rats is similar to that of normal bone marrow. The presence of inducible stromal hemopoietic precursors was evaluated by the stimulation index (the ratio of the size of hemopoietic focus formed in irradiated to that in nonirradiated recipient). It is found that the growth of ectopic focus in chimeras is stimulated by a nonthymic factor, which suggests thymus-independent regulation of hemopoietic microenvironment precursor cells.

Key words

thymectomy age stroma heterotopic hemopoietic focus clonogenic and inducible hemopoietic stromal precursors radiation chimeras 

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Copyright information

© Kluwer Academic/Plenum Publishers 1999

Authors and Affiliations

  • T. V. Todriya
    • 1
    • 2
  1. 1.Hematology Research CenterRussian Academy of Medical SciencesMoscow
  2. 2.Tbilisi State UniversityTbilisiUSSR

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