Xenotransplantation of Cryopreserved Calf Testicular Tissues

The cryopreservation of testicular tissues meets the demands for the germplasm preservation of humans and animals. Previously, we reported on the cryopreservation of bovine testicular tissues. To further evaluate the viability of these tissues, subcutaneous xenotransplantation of the frozen–thawed c...

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Main Authors: Yansen Zhao, Wenqian Zhu, Rui Yang, Boyang Zhang, Bo Tang, Xueming Zhang
Format: Article
Language:English
Published: MDPI AG 2025-03-01
Series:Veterinary Sciences
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Online Access:https://www.mdpi.com/2306-7381/12/3/247
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author Yansen Zhao
Wenqian Zhu
Rui Yang
Boyang Zhang
Bo Tang
Xueming Zhang
author_facet Yansen Zhao
Wenqian Zhu
Rui Yang
Boyang Zhang
Bo Tang
Xueming Zhang
author_sort Yansen Zhao
collection DOAJ
description The cryopreservation of testicular tissues meets the demands for the germplasm preservation of humans and animals. Previously, we reported on the cryopreservation of bovine testicular tissues. To further evaluate the viability of these tissues, subcutaneous xenotransplantation of the frozen–thawed calf testicular tissues was performed with castrated nude mice as the recipients. After 28 days (D28), the survival and development of the grafts were examined. The grafts from 1-day-old (D1) calf testes were recovered and angiogenesis around the grafts was observed. Histologically, the seminiferous cords in the grafts were well maintained and capillaries in the interstitium were observed. Quantitative real-time PCR (qRT-PCR) analysis showed that the grafts expressed germline genes <i>Gfrα-1</i>, <i>C-kit</i>, and <i>Sycp3</i> and somatic genes <i>Sox9</i>, <i>Acta2,</i> and <i>Star</i>. The expressions of <i>C-kit</i>, <i>Sox9</i>, <i>Acta2</i>, and Star were higher in 28D grafts than those in 1D and 30-day-old (30D) calf testicular controls. Together, we initially demonstrate that cryopreserved calf testicular tissues retain their viability and developmental capacity after xenotransplantation.
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spelling doaj-art-ecf748b6e5554d2a8efef39d4371f60f2025-08-20T01:49:53ZengMDPI AGVeterinary Sciences2306-73812025-03-0112324710.3390/vetsci12030247Xenotransplantation of Cryopreserved Calf Testicular TissuesYansen Zhao0Wenqian Zhu1Rui Yang2Boyang Zhang3Bo Tang4Xueming Zhang5State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, College of Veterinary Medicine, Jilin University, Changchun 130062, ChinaState Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, College of Veterinary Medicine, Jilin University, Changchun 130062, ChinaState Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, College of Veterinary Medicine, Jilin University, Changchun 130062, ChinaState Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, College of Veterinary Medicine, Jilin University, Changchun 130062, ChinaState Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, College of Veterinary Medicine, Jilin University, Changchun 130062, ChinaState Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, College of Veterinary Medicine, Jilin University, Changchun 130062, ChinaThe cryopreservation of testicular tissues meets the demands for the germplasm preservation of humans and animals. Previously, we reported on the cryopreservation of bovine testicular tissues. To further evaluate the viability of these tissues, subcutaneous xenotransplantation of the frozen–thawed calf testicular tissues was performed with castrated nude mice as the recipients. After 28 days (D28), the survival and development of the grafts were examined. The grafts from 1-day-old (D1) calf testes were recovered and angiogenesis around the grafts was observed. Histologically, the seminiferous cords in the grafts were well maintained and capillaries in the interstitium were observed. Quantitative real-time PCR (qRT-PCR) analysis showed that the grafts expressed germline genes <i>Gfrα-1</i>, <i>C-kit</i>, and <i>Sycp3</i> and somatic genes <i>Sox9</i>, <i>Acta2,</i> and <i>Star</i>. The expressions of <i>C-kit</i>, <i>Sox9</i>, <i>Acta2</i>, and Star were higher in 28D grafts than those in 1D and 30-day-old (30D) calf testicular controls. Together, we initially demonstrate that cryopreserved calf testicular tissues retain their viability and developmental capacity after xenotransplantation.https://www.mdpi.com/2306-7381/12/3/247cattlefreezing–thawingmouse recipienttestisxenograft
spellingShingle Yansen Zhao
Wenqian Zhu
Rui Yang
Boyang Zhang
Bo Tang
Xueming Zhang
Xenotransplantation of Cryopreserved Calf Testicular Tissues
Veterinary Sciences
cattle
freezing–thawing
mouse recipient
testis
xenograft
title Xenotransplantation of Cryopreserved Calf Testicular Tissues
title_full Xenotransplantation of Cryopreserved Calf Testicular Tissues
title_fullStr Xenotransplantation of Cryopreserved Calf Testicular Tissues
title_full_unstemmed Xenotransplantation of Cryopreserved Calf Testicular Tissues
title_short Xenotransplantation of Cryopreserved Calf Testicular Tissues
title_sort xenotransplantation of cryopreserved calf testicular tissues
topic cattle
freezing–thawing
mouse recipient
testis
xenograft
url https://www.mdpi.com/2306-7381/12/3/247
work_keys_str_mv AT yansenzhao xenotransplantationofcryopreservedcalftesticulartissues
AT wenqianzhu xenotransplantationofcryopreservedcalftesticulartissues
AT ruiyang xenotransplantationofcryopreservedcalftesticulartissues
AT boyangzhang xenotransplantationofcryopreservedcalftesticulartissues
AT botang xenotransplantationofcryopreservedcalftesticulartissues
AT xuemingzhang xenotransplantationofcryopreservedcalftesticulartissues