PMID- 34136572 OWN - NLM STAT- MEDLINE DCOM- 20210624 LR - 20231111 IS - 2314-6141 (Electronic) IS - 2314-6133 (Print) VI - 2021 DP - 2021 TI - Bioinformatic HLA Studies in the Context of SARS-CoV-2 Pandemic and Review on Association of HLA Alleles with Preexisting Medical Conditions. PG - 6693909 LID - 10.1155/2021/6693909 [doi] LID - 6693909 AB - After the announcement of a new coronavirus in China in December 2019, which was then called SARS-CoV-2, this virus changed to a global concern and it was then declared as a pandemic by WHO. Human leukocyte antigen (HLA) alleles, which are one of the most polymorphic genes, play a pivotal role in both resistance and vulnerability of the body against viruses and other infections as well as chronic diseases. The association between HLA alleles and preexisting medical conditions such as cardiovascular diseases and diabetes mellitus is reported in various studies. In this review, we focused on the bioinformatic HLA studies to summarize the HLA alleles which responded to SARS-CoV-2 peptides and have been used to design vaccines. We also reviewed HLA alleles that are associated with comorbidities and might be related to the high mortality rate among COVID-19 patients. Since both genes and patients' medical conditions play a key role in both severity of the disease and the mortality rate in COVID-19 patients, a better understanding of the connection between HLA alleles and SARS-CoV-2 can provide a wider perspective on the behavior of the virus. Such understanding can help scientists, especially in terms of protecting healthcare workers and designing effective vaccines. CI - Copyright (c) 2021 Mina Mobini Kesheh et al. FAU - Mobini Kesheh, Mina AU - Mobini Kesheh M AUID- ORCID: 0000-0003-0529-9163 AD - Department of Virology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran. FAU - Shavandi, Sara AU - Shavandi S AUID- ORCID: 0000-0002-3712-562X AD - Department of Industrial and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology, Tehran, Iran. FAU - Hosseini, Parastoo AU - Hosseini P AUID- ORCID: 0000-0003-2788-5796 AD - Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran. FAU - Kakavand-Ghalehnoei, Rezvan AU - Kakavand-Ghalehnoei R AUID- ORCID: 0000-0001-8918-2506 AD - Department of Virology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran. FAU - Keyvani, Hossein AU - Keyvani H AUID- ORCID: 0000-0003-2132-5982 AD - Department of Virology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran. LA - eng PT - Journal Article PT - Review DEP - 20210528 PL - United States TA - Biomed Res Int JT - BioMed research international JID - 101600173 RN - 0 (COVID-19 Vaccines) RN - 0 (HLA Antigens) SB - IM MH - Alleles MH - *COVID-19/epidemiology/genetics/virology MH - *COVID-19 Vaccines MH - Comorbidity MH - Computational Biology MH - *HLA Antigens MH - Humans MH - Pandemics MH - *SARS-CoV-2 PMC - PMC8162251 COIS- The authors declare that they have no conflicts of interest. EDAT- 2021/06/18 06:00 MHDA- 2021/06/25 06:00 PMCR- 2021/05/28 CRDT- 2021/06/17 06:49 PHST- 2020/11/16 00:00 [received] PHST- 2021/02/10 00:00 [revised] PHST- 2021/05/06 00:00 [accepted] PHST- 2021/06/17 06:49 [entrez] PHST- 2021/06/18 06:00 [pubmed] PHST- 2021/06/25 06:00 [medline] PHST- 2021/05/28 00:00 [pmc-release] AID - 10.1155/2021/6693909 [doi] PST - epublish SO - Biomed Res Int. 2021 May 28;2021:6693909. doi: 10.1155/2021/6693909. eCollection 2021.