Cellular characteristics of long-term cultured rat parotid acinar cells

C. K. Yeh, P. M. Mertz, C. Oliver, B. J. Baum, E. E. Kousvelari

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


We have successfully maintained and biochemically characterized differentiated rat parotid acinar cells cultured for long periods (6 mo.). The cells were cultured on a reconstituted basement membrane matrix in a medium containing a variety of agents that promote cellular proliferation and differentiation. The cultured cells retain the characteristics of the parental parotid acinar cells. They exhibit both secretory granules and abundant cellular organelles required for protein synthesis and secretion. In situ hybridization and immunocytochemistry demonstrate high levels of proline-rich protein mRNA and protein, and lower levels of amylase mRNA and protein, in their cytoplasm. These findings suggest that rat parotid acinar cells can be maintained in a differentiated state in vitro for long periods, and can serve as a useful model system for studying the regulation of exocrine secretory processes.

Original languageEnglish (US)
Pages (from-to)707-712
Number of pages6
JournalIn Vitro Cellular and Developmental Biology - Animal
Issue number9
StatePublished - 1991
Externally publishedYes

ASJC Scopus subject areas

  • Developmental Biology
  • Clinical Biochemistry
  • Cell Biology


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