J 2019

CVID-Associated Tumors: Czech Nationwide Study Focused on Epidemiology, Immunology, and Genetic Background in a Cohort of Patients With CVID

KRALICKOVA, Pavlina, Tomas MILOTA, Jiří LITZMAN, Ivana MALKUSOVA, Dalibor JILEK et. al.

Basic information

Original name

CVID-Associated Tumors: Czech Nationwide Study Focused on Epidemiology, Immunology, and Genetic Background in a Cohort of Patients With CVID

Authors

KRALICKOVA, Pavlina (203 Czech Republic), Tomas MILOTA (203 Czech Republic, guarantor), Jiří LITZMAN (203 Czech Republic, belonging to the institution), Ivana MALKUSOVA (203 Czech Republic), Dalibor JILEK (203 Czech Republic), Jitka PETANOVA (203 Czech Republic), Jana VYDLAKOVA (203 Czech Republic), Alena ZIMULOVA (203 Czech Republic), Eva FRONKOVA (203 Czech Republic), Michael SVATON (203 Czech Republic), Veronika KANDEROVA (203 Czech Republic), Marketa BLOOMFIELD (203 Czech Republic), Zuzana PARACKOVA (203 Czech Republic), Adam KLOCPERK (203 Czech Republic), Jiri HAVIGER (203 Czech Republic), Tomas KALINA (203 Czech Republic) and Anna SEDIVA (203 Czech Republic)

Edition

Frontiers in Immunology, LAUSANNE, FRONTIERS MEDIA SA, 2019, 1664-3224

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30102 Immunology

Country of publisher

Switzerland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 5.085

RIV identification code

RIV/00216224:14110/19:00109465

Organization unit

Faculty of Medicine

UT WoS

000456198800002

Keywords in English

common variable immunodeficiency; malignancy; lymphoma; gastric cancer; whole exome sequencing

Tags

Tags

International impact, Reviewed
Změněno: 16/4/2019 11:26, Soňa Böhmová

Abstract

V originále

Background: Common variable immunodeficiency disorder (CVID) is one of the most frequent inborn errors of immunity, increased occurrence of malignancies, particularly lymphomas, and gastric cancers, has long been noted among CVID patients. Multifactorial etiology, including immune dysregulation, infections, chronic inflammation, or genetic background, is suggested to contribute to tumor development. Here, we present the results of the first Czech nationwide study focused on epidemiology, immunology and genetic background in a cohort of CVID patients who also developed tumors Methods: The cohort consisted of 295 CVID patients followed for 3,070 patient/years. Standardized incidence ratio (SIR) was calculated to determine the risk of cancer, and Risk ratio (RR) was established to evaluate the significance of comorbidities. Moreover, immunophenotyping, including immunoglobulin levels and lymphocyte populations, was assessed. Finally, Whole exome sequencing (WES) was performed in all patients with lymphoma to investigate the genetic background. Results: Twenty-five malignancies were diagnosed in 22 patients in a cohort of 295 CVID patients. SIR was more than 6 times greater in comparison to the general population. The most common neoplasias were gastric cancers and lymphomas. History of Immune thrombocytopenic purpura (ITP) was established as a potential risk factor, with over 3 times higher risk of cancer development. The B cell count at diagnosis of lymphoma was reduced in the lymphoma group; moreover, post-treatment B and T cell lymphopenia, associated with poorer outcome, was found in a majority of the patients. Intriguingly, no NK cell depression was observed after the chemotherapy. WES revealed heterogeneous genetic background among CVID patients with tumors, identifying gene variants associated with primary immunodeficiencies (such as CTLA4, PIK3CD, PMS2) and/or increased cancer susceptibility (including BRCA1, RABEP1, EP300, KDM5A). Conclusions: The incidence of malignancy in our CVID cohort was found to be more than 6 times greater compared to the general population. Gastric cancers and lymphomas were the most frequently diagnosed tumors. ITP was identified as a risk factor for malignancy in CVID patients. WES analysis confirmed a wide genetic heterogeneity among CVID patients. The identified causative or modifying gene variants pointed to errors in mechanisms contributing to both immunodeficiency and malignancy.