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Review
. 2023 Jan;13(1):69-78.
doi: 10.34172/apb.2023.008. Epub 2022 Jan 4.

Effect of Nicotine on Immune System Function

Leila Mahmoudzadeh  1 , Seyyed Meysam Abtahi Froushani  1 , Marjan Ajami  2 , Maryam Mahmoudzadeh  3   4
Affiliations
Review

Effect of Nicotine on Immune System Function

Leila Mahmoudzadeh et al. Adv Pharm Bull. 2023 Jan.

Abstract

As a parasympathetic alkaloid and the main substance in cigarette smoke, nicotine modulates the immune system, inhibits innate and acquired immunity and is used in treating many autoimmune diseases. It often stimulates the α7 receptor and causes an anti-inflammatory state in the body. This study is designed to evaluate the role of nicotine treatment on immune system. The results showed that nicotine affects many cells in immune system, alters the downstream intracellular mechanisms and changes lymphocytes polarization. This substance alters TLRs and STATs gene expression and thus changes in the innate immune system. All these events inhibit the secretion of pro-inflammatory cytokines and chemokines which increase angiogenesis and metastasis and exacerbates tumors due to increasing survival and cell growth. Nicotine can aggravate tumors in cancer patients, with many positive effects observed in the treating autoimmune disease, Nicotine treatment function in different conditions depends on factors such as concentration, how it is employed, treatment duration and other conditions such as body conditions affecting the immune system, hence, further studies and review of all conditions are required.

Keywords: Autoimmune disease; Cancer; Immunomodulation; Nicotine.

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Conflict of interest statement

Authors declare no conflict of interest in this study.

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