» Articles » PMID: 35043289

Comparison Between Two Cryopreservation Techniques of Human Ovarian Cortex: Morphological Aspects and the Heat Shock Response (HSR)

Overview
Publisher Elsevier
Specialty Cell Biology
Date 2022 Jan 19
PMID 35043289
Authors
Affiliations
Soon will be listed here.
Abstract

This study was tailored to compare the cryopreservation of the human ovarian cortex using closed metal container vitrification or the slow-freezing technique. Superficial ovarian cortical tissue biopsies were collected from 12 participants who underwent gynaecological videolaparoscopy. The fragmented samples were allocated to three experimental conditions: (a) fresh ovarian tissue, (b) slow-freezing, and (c) vitrification with a metal closed container. After thawing or rewarming, cellular morphological analyses were performed to determine tissue viability. The cellular response to thermal stress was measured by a putative increase in the immune quantification of the heat shock protein 70 kDa (heat shock protein 70 kDa response - HSR) after a heat challenge (2 h exposure at 42 °C). Both the total number of intact follicles and the frequency of primordial follicles were higher in fresh ovarian tissue than in the preserved samples, regardless of the technique employed. There was a trend towards an increase in the absolute number of intact follicles in the tissue preserved by vitrification. After cryopreservation, a higher HSR was obtained after slow-freezing. These results indicate that both cryopreservation techniques present advantages and may be used as alternatives to ovarian tissue cryopreservation.

Citing Articles

Resolution of inflammation in chronic disease via restoration of the heat shock response (HSR).

Schroeder H, de Lemos Muller C, Heck T, Krause M, Homem de Bittencourt Jr P Cell Stress Chaperones. 2024; 29(1):66-87.

PMID: 38309688 PMC: 10939035. DOI: 10.1016/j.cstres.2024.01.005.


Elevated Extracellular HSP72 and Blunted Heat Shock Response in Severe COVID-19 Patients.

Russo M, Kowalewski L, da Natividade G, de Lemos Muller C, Schroeder H, Bock P Biomolecules. 2022; 12(10).

PMID: 36291584 PMC: 9599720. DOI: 10.3390/biom12101374.


Ovarian tissue bank for fertility preservation and anti-menopause hormone replacement.

Chen J, Han Y, Shi W, Yan X, Shi Y, Yang Y Front Endocrinol (Lausanne). 2022; 13:950297.

PMID: 36157465 PMC: 9506376. DOI: 10.3389/fendo.2022.950297.

References
1.
Andersen C, Bollerup A, Kristensen S . Defining quality assurance and quality control measures in connection with ovarian tissue cryopreservation and transplantation: a call to action. Hum Reprod. 2018; 33(7):1201-1204. DOI: 10.1093/humrep/dey105. View

2.
Massignam E, Ferreira M, Sanguinet E, Dupont A, Klamt F, Frantz N . Antioxidant defense capacity of ovarian tissue after vitrification in a metal closed system. JBRA Assist Reprod. 2018; 22(3):199-204. PMC: 6106625. DOI: 10.5935/1518-0557.20180044. View

3.
Noble E, Milne K, Melling C . Heat shock proteins and exercise: a primer. Appl Physiol Nutr Metab. 2008; 33(5):1050-65. DOI: 10.1139/H08-069. View

4.
von Wolff M, Andersen C, Woodruff T, Nawroth F . PROTEKT, Oncofertility Consortium and the Danish Fertility-Preservation Networks - What Can We Learn From Their Experiences?. Clin Med Insights Reprod Health. 2019; 13:1179558119845865. PMC: 6495450. DOI: 10.1177/1179558119845865. View

5.
Krause M, Heck T, Bittencourt A, Scomazzon S, Newsholme P, Curi R . The chaperone balance hypothesis: the importance of the extracellular to intracellular HSP70 ratio to inflammation-driven type 2 diabetes, the effect of exercise, and the implications for clinical management. Mediators Inflamm. 2015; 2015:249205. PMC: 4357135. DOI: 10.1155/2015/249205. View