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Background: The purposes of this study were to explore whether the Toll-like receptor 4 () gene rs7873784 G/C polymorphism was related to the risk of rheumatoid arthritis (RA) and to the clinical features of the disease in Chinese subjects.
Materials And Methods: We examined the rs7873784 G/C polymorphism in 805 Chinese RA patients and 1095 healthy controls. Genotype was determined with a custom-by-design 48-Plex single nucleotide polymorphism scan™ Kit. Blood plasma levels of TLR4 in 170 RA patients and 170 matched controls were measured by ELISA.
Results: The gene rs7873784 G/C polymorphism was related to a reduced risk for RA. By stratified analysis, we found a dramatically reduced risk for RA in patients who were female, CRP-positive, RF-positive, DAS28 ≥ 3.20, or ESR ≥ 25. Compared with the controls, the average level of TLR4 protein in plasma of RA patients was increased. In addition, RA patients exhibited higher levels of mRNA than controls ( < .05).
Conclusion: These results demonstrate the rs7873784 G/C polymorphism to relate to a decreased risk for RA in a Chinese population.
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http://dx.doi.org/10.1080/08820139.2020.1864397 | DOI Listing |
PeerJ
February 2021
School of Public Health, North China University of Science and Technology, Tangshan, China.
Background: Toll-like receptor 4 (TLR4), as a key regulator of both innate and acquired immunity, has been linked with the development of various cancers, including esophageal cancer. This study aims to analyze the association of potential functional genetic polymorphisms in TLR4 with the risk of esophageal cancer.
Methods: This case-control study involved in 480 ESCC patients and 480 health controls.
Immunol Invest
April 2022
Department of Orthopedics, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou China.
Background: The purposes of this study were to explore whether the Toll-like receptor 4 () gene rs7873784 G/C polymorphism was related to the risk of rheumatoid arthritis (RA) and to the clinical features of the disease in Chinese subjects.
Materials And Methods: We examined the rs7873784 G/C polymorphism in 805 Chinese RA patients and 1095 healthy controls. Genotype was determined with a custom-by-design 48-Plex single nucleotide polymorphism scan™ Kit.
Int J Clin Exp Med
July 2015
Department of Orthodontics, School of Stomatology, Jiamusi University Jiamusi 154002, Heilongjiang Province, P. R. China.
Toll-like receptors (TLRs) contribute to the immune response by recognizing patterns presented by bacteria and other pathogens. These receptors have been implicated in the inflammatory response that contributes to gingivitis and periodontitis. Conflicting reports have suggested that variations in the genes encoding TLRs, particularly TLR2 and TLR4, may influence susceptibility to periodontitis.
View Article and Find Full Text PDFHum Immunol
February 2011
Department of Epidemiology, Kemerovo State Medical Academy, Kemerovo, Russian Federation.
Toll-like receptor 4 (TLR4) is one of the key immune system effectors playing the main role in recognition of viruses and bacteria. Dysregulation of the TLR4 signaling owing to single nucleotide polymorphisms (SNPs) may alter the ligand binding and balance between pro- and anti-inflammatory cytokines, thereby modulating the risk of chronic inflammation and cancer. TLR4 polymorphisms may be associated with at least nine types of cancer.
View Article and Find Full Text PDF