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Greater expression of the human leukocyte antigen-G (HLA-G) and interleukin-17 (IL-17) in cervical intraepithelial neoplasia: analytical cross-sectional study / Aumento da expressão do antígeno leucocitário humano-G (HLA-G) e interleucina-17 (IL-17) em neoplasia intraepitelial cervical: estudo transversal analítico
Miranda, Lidyane Neves; Reginaldo, Fernanda Priscila Santos; Souza, Daliana Maria Berenice Oliveira; Soares, Christiane Pienna; Silva, Tarsia Giabardo Alves; Rocha, Keyla Borges Ferreira; Jatobá, Carlos André Nunes; Donadi, Eduardo Antonio; Andrade, Joanlise Marco Leon; Gonçalves, Ana Katherine Silveira; Crispim, Janaína Cristiana Oliveira.
  • Miranda, Lidyane Neves; Universidade Federal do Rio Grande do Norte (UFRN). School of Pharmaceutical Sciences. Department of Toxicology and Clinical Analysis. Natal. BR
  • Reginaldo, Fernanda Priscila Santos; Universidade Federal do Rio Grande do Norte (UFRN). School of Pharmaceutical Sciences. Department of Toxicology and Clinical Analysis. Natal. BR
  • Souza, Daliana Maria Berenice Oliveira; Universidade Federal do Rio Grande do Norte (UFRN). School of Pharmaceutical Sciences. Department of Toxicology and Clinical Analysis. Natal. BR
  • Soares, Christiane Pienna; Universidade Federal do Rio Grande do Norte (UFRN). School of Pharmaceutical Sciences. Department of Toxicology and Clinical Analysis. Natal. BR
  • Silva, Tarsia Giabardo Alves; Universidade Federal do Rio Grande do Norte (UFRN). School of Pharmaceutical Sciences. Department of Toxicology and Clinical Analysis. Natal. BR
  • Rocha, Keyla Borges Ferreira; Universidade Federal do Rio Grande do Norte (UFRN). School of Pharmaceutical Sciences. Department of Toxicology and Clinical Analysis. Natal. BR
  • Jatobá, Carlos André Nunes; Universidade Federal do Rio Grande do Norte (UFRN). School of Pharmaceutical Sciences. Department of Toxicology and Clinical Analysis. Natal. BR
  • Donadi, Eduardo Antonio; Universidade Federal do Rio Grande do Norte (UFRN). School of Pharmaceutical Sciences. Department of Toxicology and Clinical Analysis. Natal. BR
  • Andrade, Joanlise Marco Leon; Universidade Federal do Rio Grande do Norte (UFRN). School of Pharmaceutical Sciences. Department of Toxicology and Clinical Analysis. Natal. BR
  • Gonçalves, Ana Katherine Silveira; Universidade Federal do Rio Grande do Norte (UFRN). School of Pharmaceutical Sciences. Department of Toxicology and Clinical Analysis. Natal. BR
  • Crispim, Janaína Cristiana Oliveira; Universidade Federal do Rio Grande do Norte (UFRN). School of Pharmaceutical Sciences. Department of Toxicology and Clinical Analysis. Natal. BR
São Paulo med. j ; 133(4): 336-342, July-Aug. 2015. tab, graf
Article in English | LILACS | ID: lil-763367
ABSTRACT
CONTEXT AND

OBJECTIVE:

Impaired local cell immunity seems to contribute towards the pathogenesis and progression of cervical intraepithelial neoplasia (CIN), but the underlying molecular mechanisms promoting its progression remain unclear. Identification of new molecular markers for prognosis and diagnosis of early-stage CIN may aid in decreasing the numbers of CIN cases. Several novel immunoregulatory molecules have been discovered over the past few years, including the human leukocyte antigen G (HLA-G), which through interaction with its receptors exerts important tolerogenic functions. Several lines of evidence suggest that T-helper interleukin-17 (IL-17)-producing cells (Th17 cells) may play a role in antitumor immunity. However, recent reports have implicated Th17 cells and their cytokines in both pro and anti-tumorigenic processes. The aim of the study was to evaluate the roles of HLA-G and Th17 in the immunopathogenesis of CIN I.DESIGN AND

SETTING:

Analytical cross-sectional study with a control group using 58 cervical specimens from the files of a public university hospital providing tertiary-level care.

METHODS:

We examined HLA-G and IL-17 expression in the cervical microenvironment by means of immunohistochemistry, and correlated these findings with clinical and pathological features.

RESULTS:

There was a greater tendency towards HLA-G and IL-17 expression in specimens that showed CIN I, thus suggesting that these molecules have a contribution towards cervical progression.

CONCLUSION:

These findings suggest that HLA-G and IL-17 expression may be an early marker for assessing the progression of cervical lesions.
RESUMO
CONTEXTO E

OBJETIVO:

A deficiência na imunidade celular localizada parece contribuir para a patogênese e progressão das neoplasias intraepiteliais cervicais (NIC), no entanto, ainda não está totalmente esclarecido o mecanismo molecular fundamental nesse processo de progressão. A identificação de novos marcadores moleculares de prognóstico e diagnóstico das NIC em estágios precoces pode ajudar a diminuir a quantidade de casos de NIC. Várias novas moléculas com função imunorregulatória foram descobertas nos últimos anos, inclusive o antígeno leucocitário humano G (HLA-G), que, através de interação com os receptores, tem importantes funções tolerogênicas. Diversas linhas de evidência sugerem que as células T-ajudantes produtoras de interleucina-17 (IL-17, células Th17), podem desempenhar um papel na imunidade antitumoral. Porém, recentes relatos implicaram as células Th17 e suas citocinas tanto em processos pro- quanto anti-tumorigênicos. O objetivo do estudo foi avaliar o papel do HLA-G e Th17 na imunopatogênese das NIC I.TIPO DE ESTUDO E LOCALEstudo transversal analítico com grupo controle em 58 espécimes cervicais dos arquivos de um hospital universitário público com assistência prestada no nível terciário.

MÉTODOS:

Avaliamos a expressão de HLA-G e IL-17 por imunoistoquímica no microambiente cervical, associando esses achados com as características clínico-patológicas.

RESULTADOS:

Houve tendência aumentada da expressão de HLA-G e IL-17 em espécimes que apresentaram NIC I, sugerindo que essas moléculas têm contribuição na progressão cervical.

CONCLUSÃO:

Estes resultados sugerem que a expressão do HLA-G e da IL-17 pode ser um marcador precoce para avaliar a progressão das lesões cervicais.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Uterine Cervical Dysplasia / Uterine Cervical Neoplasms / Cervix Uteri / HLA-G Antigens Type of study: Observational study / Prevalence study / Prognostic study / Risk factors Limits: Adult / Female / Humans Language: English Journal: São Paulo med. j Journal subject: Cirurgia Geral / Ciˆncia / Ginecologia / Medicine / Medicina Interna / Obstetr¡cia / Pediatria / Sa£de Mental / Sa£de P£blica Year: 2015 Type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade Federal do Rio Grande do Norte (UFRN)/BR

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Full text: Available Index: LILACS (Americas) Main subject: Uterine Cervical Dysplasia / Uterine Cervical Neoplasms / Cervix Uteri / HLA-G Antigens Type of study: Observational study / Prevalence study / Prognostic study / Risk factors Limits: Adult / Female / Humans Language: English Journal: São Paulo med. j Journal subject: Cirurgia Geral / Ciˆncia / Ginecologia / Medicine / Medicina Interna / Obstetr¡cia / Pediatria / Sa£de Mental / Sa£de P£blica Year: 2015 Type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade Federal do Rio Grande do Norte (UFRN)/BR