HLA DRB1 alleles, IFN-γ and TGF-β Gene Variants in childhood ALL patients

Oğuz S. R., Şentürk Çiftçi H., Gökçe M., Öğret Y., İzgi D., Özdilli K., ...Daha Fazla

TURKISH JOURNAL OF BIOCHEMISTRY, cilt.48, sa.1, ss.80-87, 2023 (SCI-Expanded)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 48 Sayı: 1
  • Basım Tarihi: 2023
  • Dergi Adı: TURKISH JOURNAL OF BIOCHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, EMBASE, Food Science & Technology Abstracts, Directory of Open Access Journals
  • Sayfa Sayıları: ss.80-87
  • İstanbul Üniversitesi Adresli: Evet

Özet

Objectives

Graft-versus-host disease (GvHD) is a complex clinical syndrome with organ dysfunction as a consequence of a severe immunological reaction mediated by mainly T cells after hematopoietic stem cell transplantation. Our aim is to evaluate the association of HLA-DRB1 alleles, IFN-γ and TGF-β gene variations, with childhood ALL (c-ALL) patients and with GvHD after transplantation.

Methods

This study included 30 high-risk c-ALL patients and 100 controls. HLA-DRB1 alleles were studied by the NGS method, and TGF-β and IFN-γ variations were studied by the PCR-RFLP method.

Results

The rates of HLA-DRB1*15 alleles and IFN-gamma CC genotype were significantly higher in c-ALL patients (p=0.004, p=0.036 respectively). Association of the HLA-DRB1*15 alleles with the TGF-β TC genotype was found with a higher rate in the patient group (p=0.031). Association of the DRB1*04 allele with the IFN-γ CC genotype was found with a higher rate in the patient group (p=0.028). Acute GvHD developed in eight of 19 patients who underwent transplantation. IFN-γ CT was found to have a protective role in occurrence of aGvHD (p=0.044). Association of the DRB1*15 allele with IFN-γ TT was found with a higher rate in a GvHD (p=0.050).

Conclusions

It is thought that polymorphism of HLA-DR15 and IFN-γ CC may contribute to the development of c-ALL, while IFN-γ CT might be protective for aGvHD.