Cellular dynamics of the outer layers of the hair follicle of fine-wool sheep during the phase of stable hair growth

Vsevolodov, E. B.; Голиченков, В. А.; Latypov, I. F.

doi:10.1134/s1062360414060095

Cited by 2 publications

(2 citation statements)

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“…The hair outer root sheath (OS) surrounds the IS and even matrix. Its cells do not originate from the matrix, and at least outer layer cells of the OS do not move upward like the cells of the hair and IS [4]. Outer layer cells of the OS can move downward toward the bottom of the matrix, penetrate into it, and renew its proliferation potential after its decrease after some damages or as Hayflick limit [5] being exhausted.…”

Section: Introductionmentioning

confidence: 99%

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The Histological Mechanisms of Hair Loss

Borisovich¹

2017

Hair and Scalp Disorders

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The growing hair resists pulling out of the skin in particular site, where the keratinization of hair cortex and hair cuticle cells as well as the cells of the hair inner root sheath (IS) (being in tight contact) are advanced enough to make them rather strong but lower the level where the hair separates from the hair inner root sheath. The hair which does not grow is kept for some time within the skin by the direct contact of the keratinized hair cortex cells with the cells of the hair outer root sheath. Such contact is absent at the phase of growing hair and even in the case of proliferation inhibition in the follicle bulb causing the lack of hair resistance to pulling it out of the skin several days after inhibition induction.

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Section: Introductionmentioning

confidence: 99%

“…Some of the outer layer cells proliferate and display the inward amoeboid movement toward IS wedging between the already present companion cells arrived from below. Then these cells become new elements of companion layer and take part in its upward movement together with the IS and hair [4,7].…”

Section: Introductionmentioning

confidence: 99%