Postmortem changes occurring in human carotid body were simulated on the Wistar rat model. It was shown that light, dark, and pyknotic (progenitor) subtypes of human carotid body cells are an artifact and cannot be used in clinical practice to study the characteristics of various human diseases. The differences between the control group of healthy individuals and individuals with the various pathologies are most likely due to the different levels of premortal hypoxia that the tissue had been exposed to. Moreover, widespread antigens used in practice were divided into 2 groups by their tolerance to autolysis: stable and unstable ones. This can be useful for the development of immunohistochemical test algorithms for the diagnostics on autopsy material.
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Translated from Byulleten’ Eksperimental’noi Biologii i Meditsiny, Vol. 168, No. 12, pp. 772-777, December, 2019
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Otlyga, D.A., Junemann, O.A., Dzhalilova, D.S. et al. Immunohistochemical Study of Dark and Progenitor Carotid Body Cells: Artefacts or Real Subtypes?. Bull Exp Biol Med 168, 807–811 (2020). https://doi.org/10.1007/s10517-020-04807-8
- carotid body
- dark cells
- progenitor cells