J 2018

Selected Genetic Polymorphisms Associated with Hypoxia and Multidrug Resistance in Monoclonal Gammopathies Patients

ALMÁŠI, Martina; L. BESSE; Lucie BROŽOVÁ; Jiří JARKOVSKÝ; Renata BEZDĚKOVÁ et. al.

Základní údaje

Originální název

Selected Genetic Polymorphisms Associated with Hypoxia and Multidrug Resistance in Monoclonal Gammopathies Patients

Název česky

Vybrané genetické polymorfizmy asociované s hypoxií a multilékovou rezistencí u pacientů s monoklonálními gamapatiemi

Autoři

ALMÁŠI, Martina; L. BESSE; Lucie BROŽOVÁ; Jiří JARKOVSKÝ ORCID; Renata BEZDĚKOVÁ; Luděk POUR; J. MINARIK; P. KESSLER; P. PAVLICEK; L. ROZIAKOVA; Miroslav PENKA; Roman HÁJEK; Anna VAŠKŮ a Sabina ŠEVČÍKOVÁ

Vydání

Klinická onkologie, Praha, Ambit Media, 2018, 0862-495X

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

30205 Hematology

Stát vydavatele

Česká republika

Utajení

není předmětem státního či obchodního tajemství

Kód RIV

RIV/00216224:14110/18:00103521

Organizační jednotka

Lékařská fakulta

EID Scopus

2-s2.0-85055991021

Klíčová slova anglicky

multiple myeloma; hypoxia; genotype; polymorphism; qPCR

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 13. 3. 2019 13:52, Soňa Böhmová

Anotace

V originále

Background: Adaptive response to hypoxia is regulated by several mechanisms and transcription factors, including hypoxia-inducible factors (HIFs). Activation of HIF-1alpha is associated with increased expression of P-glycoprotein and multidrug resistance in cancer cells. In this retrospective study, we analyzed candidate single-nucleotide polymorphisms (SNPs) in HIF-1alpha and HIF-1beta associated with risk of monoclonal gammopathy of undetermined significance (MGUS) or multiple myeloma (MM). Patients and Methods: Genotypes of SNPs associated with hypoxia were determined in an independent cohort of monoclonal gammopathies (MG) (275 MM and 228 MGUS patients) and in 219 cancer-free controls by real time polymerase chain reaction allelic discrimination. Results: When MM patients were compared to controls, protective role of CG genotype compared to CC in HIF-1beta (rs2228099) for MM development was observed (OR = 0.65; CI 0.45-0.95; p = 0.026). Even after adjustment for patients' age and body mass index (BMI), there were significantly lower odds (OR = 0.55; p = 0.045) of developing MM patients of CG genotype in comparison to CC genotype. Log-rank test confirmed association of GT haplotype (rs11549467, rs2057482) in HIF-1alpha with better overall survival (median 41.8 months; (CI 35.1-48.5)) for "none GT" and median 93.8 months (CI 31.3-156.4) for "at least one GT" haplotype (p = 0.0500). Further, significant associations between SNPs in MDR1 and outcome of MM were found in 110 MM patients that underwent bortezomib-based treatment. Conclusion: Our study showed a genetic predisposition for risk of MG development and/or outcome of MM patients; nevertheless, further studies are needed to confirm our initial analysis.