The histogenesis of the rat adrenal cortex: A study based on histologic analysis of mosaic pattern in chimeras

P. M. Iannaccone*, W. C. Weinberg

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

34 Scopus citations

Abstract

A series of chimeric rats was used to investigate the histogenesis of the adrenal cortex. These animals were produced by amalgamating preimplantation embryos of two congenic strains which express different alloantigens of the major histocompatibility system. The manner in which cells assort themselves during embryogenesis and organ renewal is amenable to analysis by using radiolabeled antibodies directed to the class I antigens. Mosaic pattern analysis of the adrenal cortex of these rats revealed that a clonal pattern of division was maintained across all three histogenic zones of the organ, even in highly unbalanced chimeric combinations. No apparent relationship existed between the proportion of cell types and the area of contiguously similar lineage (patch size). In the series examined, the percentage of cells derived from the PVG‐RT1a lineage varied from 5 to 85%. The number of parallel cords varied from 6 to 28. The pattern analysis of informative corners of cross sections of the gland supports the thesis that organ maintenance is the result of cell division from the outside of the cortex toward the inside medullary surface.

Original languageEnglish (US)
Pages (from-to)217-223
Number of pages7
JournalJournal of Experimental Zoology
Volume243
Issue number2
DOIs
StatePublished - Aug 1987

ASJC Scopus subject areas

  • Animal Science and Zoology

Fingerprint Dive into the research topics of 'The histogenesis of the rat adrenal cortex: A study based on histologic analysis of mosaic pattern in chimeras'. Together they form a unique fingerprint.

Cite this