Anti-cancer effect of COVID-19 vaccines in mice models.
Life Sci
; 325: 121569, 2023 Jul 15.
Article
in English
| MEDLINE | ID: covidwho-2256809
ABSTRACT
AIMS:
Without any doubt, vaccination was the best choice for Coronavirus disease 2019 (COVID-19) pandemic control. According to the American Society of Clinical Oncology (ASCO) and European Society for Medical Oncology (ESMO), people with cancer or a history of cancer have a higher risk of dying from Covid-19 than ordinary people; hence, they should be considered a high-priority group for vaccination. On the other hand, the effect of the Covid-19 vaccination on cancer is not transparent enough. This study is one of the first in vivo studies that try to show the impact of Sinopharm (S) and AstraZeneca (A) vaccines on breast cancer, the most common cancer among women worldwide. MATERIALS ANDMETHODS:
Vaccination was performed with one and two doses of Sinopharm (S1/S2) or AstraZeneca (A1/A2) on the 4T1 triple-negative breast cancer (TNBC) mice model. The tumor size and body weight of mice were monitored every two days. After one month, mice were euthanized, and the existence of Tumor-infiltrating lymphocytes (TILs) and expression of the important markers in the tumor site was assessed. Metastasis in the vital organs was also investigated. KEYFINDINGS:
Strikingly, all of the vaccinated mice showed a decrease in tumor size and this decrease was highest after two vaccinations. Moreover, we observed more TILs in the tumor after vaccination. Vaccinated mice demonstrated a decrease in the expression of tumor markers (VEGF, Ki-67, MMP-2/9), CD4/CD8 ratio, and metastasis to the vital organs.SIGNIFICANCE:
Our results strongly suggest that COVID-19 vaccinations decrease tumor growth and metastasis.Keywords
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Main subject:
COVID-19
/
Neoplasms
Type of study:
Experimental Studies
/
Prognostic study
Topics:
Vaccines
Limits:
Animals
/
Female
/
Humans
Language:
English
Journal:
Life Sci
Year:
2023
Document Type:
Article
Affiliation country:
J.lfs.2023.121569
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