The effect of rat serum on the morphology of rat hair follicles in tissue culture
- 1 October 1980
- journal article
- research article
- Published by Springer Nature in Archives of Dermatological Research
- Vol. 269 (1) , 13-20
- https://doi.org/10.1007/bf00404453
Abstract
Rat hair follicles obtained from the skin of 12-day-old animals were cultured in the presence of 20% fetal calf serum and compared with those cultured in the presence of 20% rat serum obtained from animals aged 12–14, 18–20 days, and 1 year. Follicles cultured in the presence of fetal calf or 12–14-day rat serum showed no morphological change after 2 days of culture. Follicles cultured in the presence of 18–20 day serum or adult serum for 2 days showed greatly altered morphology, the dermal papilla degenerated, keratinization of hair cells occurred, and an enlarged outer sheath developed. The cells in this sheath contained many filaments which were periodic acid-Schiff positive. These changes are compared with those occurring during the catagen phase of the hair cycle in vivo. Haarfollikel von 12 Tage alten Ratten wurden mit 20% fetalem Kalbsserum zur Kultur angesetzt und mit Kulturen verglichen, denen 20%iges Rattenserum von Tieren im Alter von 12–14, 18–20 Tagen und 1 Jahr, zugesetzt wurde. Follikelkulturen, die mit fetalem Kalbsserum oder 12–14 Tage altem Rattenserum versetzt waren, zeigten keine morphologische Veränderungen nach 2 Tagen kulturellen Wachstums. Follikel, deren Kultur mit Serum von 18–20 Tage alten oder erwachsenen Tieren versetzt waren, zeigten nach 2 Tagen ausgeprägte morphologische Veränderungen. Die dermale Papille war degeneriert. Es entwickelte sich eine Keratinisation der Haarzellen und eine Verbreiterung der äußeren Scheide. Die Zellen in dieser Scheide enthielten viele Filamente, die PAS-positiv waren. Diese Veränderungen wurden mit solchen verglichen, die sich während der Katagenphase des Haarcyclus in vivo entwickelten.Keywords
This publication has 11 references indexed in Scilit:
- The Use of Herr Four-and-a-Half Clearing Fluid for the Rapid Microscopic Examination of Thick Sections of Normal and Neoplastic TissuesStain Technology, 1975
- Regulation of Human Hair Growth by Steroid Hormones. I. Testosterone Metabolism in Isolated HairsJournal of Clinical Endocrinology & Metabolism, 1974
- The Pilary ApparatusPublished by Elsevier ,1974
- Rapid Single-Solution Polychrome Staining of Semithin Epoxy Sections using Polyethylene Glycol 200 (PEG 200) as a Stain SolventStain Technology, 1974
- In Vitro Growth of Postembryonic HairJournal of Investigative Dermatology, 1973
- Role of macrophages in collagen resorption during hair growth cycleJournal of Ultrastructure Research, 1969
- THE ACTION OF HORMONES ON SPONTANEOUS HAIR GROWTH CYCLES IN THE RATJournal of Endocrinology, 1964
- The Human Hair Cycle11From the Department of Dermatology of the University of Pennsylvania, Philadelphia, Pa. This research was supported by U.S. Army Research Contract DA 49-007-MD-154.Journal of Investigative Dermatology, 1959
- QUANTITATIVE STUDIES OF HAIR GROWTH IN THE ALBINO RATJournal of Endocrinology, 1958
- The hair cycles in the albino ratThe Anatomical Record, 1934