TY - JOUR
T1 - Effect and in silico characterization of genetic variants associated with severe spermatogenic disorders in a large Iberian cohort
AU - Cerván-Martín, Miriam
AU - Bossini-Castillo, Lara
AU - Rivera-Egea, Rocío
AU - Garrido, Nicolás
AU - Luján, Saturnino
AU - Romeu, Gema
AU - Santos-Ribeiro, Samuel
AU - Castilla, José A
AU - Carmen Gonzalvo, M
AU - Clavero, Ana
AU - Vicente, F Javier
AU - Guzmán-Jiménez, Andrea
AU - Burgos, Miguel
AU - Barrionuevo, Francisco J
AU - Jiménez, Rafael
AU - Sánchez-Curbelo, Josvany
AU - López-Rodrigo, Olga
AU - Peraza, M Fernanda
AU - Pereira-Caetano, Iris
AU - Marques, Patrícia I
AU - Carvalho, Filipa
AU - Barros, Alberto
AU - Bassas, Lluís
AU - Seixas, Susana
AU - Gonçalves, João
AU - Larriba, Sara
AU - Lopes, Alexandra M
AU - Carmona, F David
AU - Palomino-Morales, Rogelio J
PY - 2021/3/30
Y1 - 2021/3/30
N2 - BACKGROUND: Severe spermatogenic failure (SpF) represents the most extreme manifestation of male infertility, as it decreases drastically the semen quality leading to either severe oligospermia (SO, < 5 million spermatozoa/mL semen) or non-obstructive azoospermia (NOA, complete lack of sperm in the ejaculate without obstructive causes).OBJECTIVES: The main objective of the present study is to analyze in the Iberian population the effect of 6 single-nucleotide polymorphisms (SNPs) previously associated with NOA in Han Chinese through genome-wide association studies (GWAS), and to establish their possible functional relevance in the development of specific SpF patterns.MATERIALS AND METHODS: We genotyped 674 Iberian infertile men (including 480 NOA and 194 SO patients) and 1058 matched unaffected controls for the GWAS-associated variants PRMT6-rs12097821, PEX10-rs2477686, CDC42BPA-rs3000811, IL17A-rs13206743, ABLIM1-rs7099208, and SOX5-rs10842262. Their association with SpF, SO, NOA, and different NOA phenotypes was evaluated by logistic regression models, and their functional relevance was defined by comprehensive interrogation of public resources.RESULTS: ABLIM1-rs7099208 was associated with SpF under both the additive (OR=0.86, P=0.036) and dominant models (OR=0.78, P=0.026). The CDC42BPA-rs3000811 minor allele frequency was significantly increased in the subgroup of NOA patients showing maturation arrest (MA) of germ cells compared to the remaining NOA cases under the recessive model (OR=4.45, P=0.044). The PEX10-rs2477686 SNP was associated with a negative testicular sperm extraction (TESE) outcome under the additive model (OR=1.32, P=0.034). The analysis of functional annotations suggested that these variants affect the testis-specific expression of nearby genes and that lincRNA may play a role in SpF.CONCLUSIONS: Our data support the association of 3 previously reported NOA risk variants in Asians (ABLIM1-rs7099208, CDC42BPA-rs3000811, and PEX10-rs2477686) with different manifestations of SpF in Iberians of European descent, likely by influencing gene expression and lincRNA deregulation.
AB - BACKGROUND: Severe spermatogenic failure (SpF) represents the most extreme manifestation of male infertility, as it decreases drastically the semen quality leading to either severe oligospermia (SO, < 5 million spermatozoa/mL semen) or non-obstructive azoospermia (NOA, complete lack of sperm in the ejaculate without obstructive causes).OBJECTIVES: The main objective of the present study is to analyze in the Iberian population the effect of 6 single-nucleotide polymorphisms (SNPs) previously associated with NOA in Han Chinese through genome-wide association studies (GWAS), and to establish their possible functional relevance in the development of specific SpF patterns.MATERIALS AND METHODS: We genotyped 674 Iberian infertile men (including 480 NOA and 194 SO patients) and 1058 matched unaffected controls for the GWAS-associated variants PRMT6-rs12097821, PEX10-rs2477686, CDC42BPA-rs3000811, IL17A-rs13206743, ABLIM1-rs7099208, and SOX5-rs10842262. Their association with SpF, SO, NOA, and different NOA phenotypes was evaluated by logistic regression models, and their functional relevance was defined by comprehensive interrogation of public resources.RESULTS: ABLIM1-rs7099208 was associated with SpF under both the additive (OR=0.86, P=0.036) and dominant models (OR=0.78, P=0.026). The CDC42BPA-rs3000811 minor allele frequency was significantly increased in the subgroup of NOA patients showing maturation arrest (MA) of germ cells compared to the remaining NOA cases under the recessive model (OR=4.45, P=0.044). The PEX10-rs2477686 SNP was associated with a negative testicular sperm extraction (TESE) outcome under the additive model (OR=1.32, P=0.034). The analysis of functional annotations suggested that these variants affect the testis-specific expression of nearby genes and that lincRNA may play a role in SpF.CONCLUSIONS: Our data support the association of 3 previously reported NOA risk variants in Asians (ABLIM1-rs7099208, CDC42BPA-rs3000811, and PEX10-rs2477686) with different manifestations of SpF in Iberians of European descent, likely by influencing gene expression and lincRNA deregulation.
KW - genetic association study
KW - impaired spermatogenesis
KW - male infertility
KW - non-obstructive azoospermia
KW - severe oligospermia
U2 - 10.1111/andr.13009
DO - 10.1111/andr.13009
M3 - Article
C2 - 33784440
JO - Andrology
JF - Andrology
SN - 2047-2919
M1 - 3506
ER -