ISSN: 0973-7510

E-ISSN: 2581-690X

Research Article | Open Access
Israa S. Shamsia1, Rania Abozahra1, Kholoud Baraka1 , Ayman Abou Shmeila2 and Sarah M. Abdelhamid1
1Microbiology and Immunology Department, Faculty of Pharmacy, Damanhour University, Damanhour, Egypt.
2Damanhour Oncology Center, Ministry of Health, Damanhour, Egypt.
Article Number: 7788 | © The Author(s). 2022
J Pure Appl Microbiol. 2022;16(4):2530-2542. https://doi.org/10.22207/JPAM.16.4.17
Received: 24 April 2022 | Accepted: 03 September 2022 | Published online: 19 October 2022
Issue online: December 2022
Abstract

The human cytomegalovirus (HCMV) is a global opportunistic β-herpes virus causing severe diseases in immune-compromised patients, such as malignant tumor patients, especially those undergoing chemotherapeutic treatment. This study aimed to determine the prevalence of HCMV-DNA in chemotherapeutic treatment naive cancer patients, and after chemotherapy, to compare between conventional nested PCR and ELISA techniques for the detection of HCMV, and to detect glycoprotein B genotypes. Plasma and serum samples before and after three chemotherapy cycles were collected from 49 chemotherapy-naive cancer patients. DNA was extracted from plasma samples using QIAamp® DNA Mini kit. HCMV-DNA was detected using a nested PCR technique. Multiplex nested PCR was used for HCMV-glycoprotein B (gB) genotyping. HCMV-IgG and -IgM were detected using ELISA technique. Thirty one (63.3 %) of the 49 plasma samples of the chemotherapy-naïve cancer patients were positive for HCMV-DNA; 21 of which remained positive after chemotherapy. However, 18 samples were negative of which 16 became positive after chemotherapy. gB-5 was the most common glycoprotein genotype detected (80.6 %), followed by gB-1, gB-3, gB-4, and gB-2. HCMV IgG was detected in the 49 serum samples of chemotherapy-naïve patients, and after exposure to chemotherapy. HCMV-DNA is commonly identified in cancer patients. Its detection after chemotherapy exposure may suggest HCMV reactivation. The most common genotype detected in cancer patients in Egypt is gB-5 in contrast to earlier research. IgG was detected in all patients. This indicates that HCMV is endemic in Egypt, necessitating the development of public awareness campaigns about HCMV infection and preventive strategies.

Keywords

Human Cytomegalovirus, Genotyping, Cancer, ELISA, Nested PCR

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© The Author(s) 2022. Open Access. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License which permits unrestricted use, sharing, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.