Volume 76, Issue 6 pp. 439-442
Short Communication

Is HLA-E a possible genetic marker relevant for natural conception?

Georgia Fernanda Gelmini

Georgia Fernanda Gelmini

Laboratório de Imunogenética e Histocompatibilidade do Departamento de Genética da Universidade Federal do Paraná (UFPR), Curitiba (PR), Brasil

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Cynthia Hernandes Costa

Cynthia Hernandes Costa

Laboratório de Imunogenética e Histocompatibilidade do Departamento de Genética da Universidade Federal do Paraná (UFPR), Curitiba (PR), Brasil

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Fabiola da Silva Nardi

Fabiola da Silva Nardi

Laboratório de Imunogenética e Histocompatibilidade do Departamento de Genética da Universidade Federal do Paraná (UFPR), Curitiba (PR), Brasil

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Pryscilla Fanini Wowk

Pryscilla Fanini Wowk

Laboratório de Imunogenética e Histocompatibilidade do Departamento de Genética da Universidade Federal do Paraná (UFPR), Curitiba (PR), Brasil

Instituto Carlos Chagas, ICC-Fiocruz-PR, Curitiba (PR), Brasil

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Sibelle Botogosque Mattar

Sibelle Botogosque Mattar

Laboratório de Imunogenética e Histocompatibilidade do Departamento de Genética da Universidade Federal do Paraná (UFPR), Curitiba (PR), Brasil

Instituto Carlos Chagas, ICC-Fiocruz-PR, Curitiba (PR), Brasil

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Alessandro Schuffner

Alessandro Schuffner

Centro de Medicina Reprodutiva Conceber, Curitiba (PR), Brasil

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Maria da Graça Bicalho

Maria da Graça Bicalho

Laboratório de Imunogenética e Histocompatibilidade do Departamento de Genética da Universidade Federal do Paraná (UFPR), Curitiba (PR), Brasil

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Valéria Maria Munhoz Sperandio Roxo

Corresponding Author

Valéria Maria Munhoz Sperandio Roxo

Laboratório de Imunogenética e Histocompatibilidade do Departamento de Genética da Universidade Federal do Paraná (UFPR), Curitiba (PR), Brasil

Correspondence

Valéria Maria Munhoz Sperandio Roxo, Laboratório de Imunogenética e Histocompatibilidade, Departamento de Genética, Universidade Federal do Paraná, Curitiba –PR, Brazil.

Email: [email protected]

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First published: 07 October 2016
Citations: 4

Funding information:

FUNPAR-LIGH

Abstract

Background

HLA-E products, class Ib human leukocyte antigens, act in the immunology of human reproduction as modulators of the maternal immune system during pregnancy.

Aims

To evaluate HLA-E role in the establishment of a viable pregnancy.

Materials & Methods

HLA-E was genotyped by sequence-based typing (SBT) and analyzed for specific polymorphisms, comparing couples who underwent assisted reproduction treatment (ART) and fertile control couples.

Results

There was a significant difference in HLA-E allele and genotype distributions between ART couples and control couples. The allele HLA-E*01:03 was observed in 63.2% of ART men and in 35.1% of fertile men (P = 0.0032).

Conclusion

These results suggest that HLA-E allelic variants may play a role in the modulation of immune responses in the context of the inability of natural conception and establishment of a viable pregnancy.

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