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Tissue Cell. 2018 Aug;53:1-7. doi: 10.1016/j.tice.2018.05.008. Epub 2018 May 19.

Quantitative fluorescence in situ hybridization for investigation of telomere length dynamics in the pituitary gland using samples from 128 autopsied patients.

Author information

1
Clinical Laboratory Department, Japanese Red Cross Medical Center, 4-1-22 Hiroo, Shibuya-ku, Tokyo 150-8935, Japan; Research Team for Geriatric Pathology, Tokyo Metropolitan Institute of Gerontology, Tokyo 173-0015, Japan.
2
Department of Judotherapy, Faculty of Health Sciences, Tokyo Ariake University of Medical and Health Sciences, Tokyo 135-0063, Japan; Research Team for Geriatric Pathology, Tokyo Metropolitan Institute of Gerontology, Tokyo 173-0015, Japan. Electronic address: terai@tau.ac.jp.
3
Clinical Laboratory Department, Japanese Red Cross Medical Center, 4-1-22 Hiroo, Shibuya-ku, Tokyo 150-8935, Japan; Department of Pathology, Nissan Tamagawa Hospital, 4-8-1 Seta, Setagaya-ku, Tokyo 158-0095, Japan.
4
Research Team for Geriatric Pathology, Tokyo Metropolitan Institute of Gerontology, Tokyo 173-0015, Japan; Department of Pathology, Tokyo Metropolitan Geriatric Hospital, Tokyo 173-0015, Japan.
5
Research Team for Geriatric Pathology, Tokyo Metropolitan Institute of Gerontology, Tokyo 173-0015, Japan.
6
Department of Pathology, Japanese Red Cross Medical Center, 4-1-22 Hiroo, Shibuya-ku, Tokyo 150-8935, Japan; Research Team for Geriatric Pathology, Tokyo Metropolitan Institute of Gerontology, Tokyo 173-0015, Japan.
7
Research Team for Geriatric Pathology, Tokyo Metropolitan Institute of Gerontology, Tokyo 173-0015, Japan; Department of Pathology, Tokyo Metropolitan Geriatric Hospital, Tokyo 173-0015, Japan. Electronic address: tishiwat@tmig.or.jp.

Abstract

In order to investigate the population dynamics of telomere status, we measured the telomere lengths of glandular cells in the adenohypophysis (AH) and pituicytes, a type of glial cell, in the neurohypophysis (NH) of 128 autopsied humans (65 men, 63 women, 0 and 102 years) using our original quantitative fluorescence in situ hybridization (Q-FISH) method. Telomeres in the AH shortened with aging in both men and women, but those of pituicytes did not. Pituicyte telomeres were significantly longer in women than in men. The data suggest that telomeres shorten with age in the AH, whereas those in pituicytes maintain a constant length throughout life. Comparison of pituicyte telomere lengths among 5 generations, <18, 18-69, 70-79, 80-89, and >90 years, revealed a tendency for telomeres to be longer in individuals in their 80 s and 90 s than in those in their 70 s. These findings lend support to the widely held notion that humans with longer telomeres may have a longer life span, and shed light on the biology of pituitary gland in terms of telomere length dynamics, as well contributing to the development of bioengineered hormone-producing cell replacement strategies and regenerative therapies.

KEYWORDS:

Adenohypophysis; Neurohypophysis; Q-FISH; Telomere

PMID:
30060819
DOI:
10.1016/j.tice.2018.05.008
[Indexed for MEDLINE]

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