TY - JOUR
T1 - Spermatogonia Loss Correlates with LAMA 1 Expression in Human Prepubertal Testes Stored for Fertility Preservation
AU - Kurek, Magdalena
AU - Åkesson, Elisabet
AU - Yoshihara, Masahito
AU - Oliver, Elizabeth
AU - Cui, Yanhua
AU - Becker, Martin
AU - Alves-Lopes, João Pedro
AU - Bjarnason, Ragnar
AU - Romerius, Patrik
AU - Sundin, Mikael
AU - Norén Nyström, Ulrika
AU - Langenskiöld, Cecilia
AU - Vogt, Hartmut
AU - Henningsohn, Lars
AU - Petersen, Cecilia
AU - Söder, Olle
AU - Guo, Jingtao
AU - Mitchell, Rod T.
AU - Jahnukainen, Kirsi
AU - Stukenborg, Jan Bernd
PY - 2021
Y1 - 2021
N2 - Fertility preservation for male childhood cancer survivors not yet capable of producing mature spermatozoa, relies on experimental approaches such as testicular explant culture. Although the first steps in somatic maturation can be observed in human testicular explant cultures, germ cell depletion is a common obstacle. Hence, understanding the spermatogonial stem cell (SSC) niche environment and in particular, specific components such as the seminiferous basement membrane (BM) will allow progression of testicular explant cultures. Here, we revealed that the seminiferous BM is established from 6 weeks post conception with the expression of laminin alpha 1 (LAMA 1) and type IV collagen, which persist as key components throughout development. With prepubertal testicular explant culture we found that seminiferous LAMA 1 expression is disrupted and depleted with culture time correlating with germ cell loss. These findings highlight the importance of LAMA 1 for the human SSC niche and its sensitivity to culture conditions.
AB - Fertility preservation for male childhood cancer survivors not yet capable of producing mature spermatozoa, relies on experimental approaches such as testicular explant culture. Although the first steps in somatic maturation can be observed in human testicular explant cultures, germ cell depletion is a common obstacle. Hence, understanding the spermatogonial stem cell (SSC) niche environment and in particular, specific components such as the seminiferous basement membrane (BM) will allow progression of testicular explant cultures. Here, we revealed that the seminiferous BM is established from 6 weeks post conception with the expression of laminin alpha 1 (LAMA 1) and type IV collagen, which persist as key components throughout development. With prepubertal testicular explant culture we found that seminiferous LAMA 1 expression is disrupted and depleted with culture time correlating with germ cell loss. These findings highlight the importance of LAMA 1 for the human SSC niche and its sensitivity to culture conditions.
KW - basal membrane
KW - germ cells
KW - infertility
KW - late effects
KW - seminiferous tubules
KW - Sertoli cells
KW - spermatogonia
KW - stem cell niche
U2 - 10.3390/cells10020241
DO - 10.3390/cells10020241
M3 - Article
C2 - 33513766
AN - SCOPUS:85100612669
SN - 2073-4409
VL - 10
JO - Cells
JF - Cells
IS - 2
M1 - 241
ER -