1. Disturbed Transcription of TLRs' Negative Regulators and Cytokines Secretion among TLR4- and 9-Activated PBMCs of Agammaglobulinemic Patients
- Author
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Roozbeh Sanaei, Nader Tajik, Parsova Tavasolian, Nima Rezaei, Asghar Aghamohammadi, and Ali-Akbar Delbandi
- Subjects
0301 basic medicine ,Lipopolysaccharides ,Male ,Adolescent ,Transcription, Genetic ,medicine.medical_treatment ,Ubiquitin-Protein Ligases ,Immunology ,Biology ,TNFAIP3 ,03 medical and health sciences ,Young Adult ,0302 clinical medicine ,Suppressor of Cytokine Signaling 1 Protein ,Agammaglobulinemia ,medicine ,Bruton's tyrosine kinase ,Humans ,Child ,Cells, Cultured ,Tumor Necrosis Factor alpha-Induced Protein 3 ,Cytokine Measurement ,Suppressor of cytokine signaling 1 ,Toll-Like Receptors ,General Medicine ,Toll-Like Receptor 4 ,030104 developmental biology ,Cytokine ,Interleukin-1 Receptor-Associated Kinases ,Oligodeoxyribonucleotides ,030220 oncology & carcinogenesis ,Toll-Like Receptor 9 ,biology.protein ,TLR4 ,Leukocytes, Mononuclear ,Cytokines ,Tumor necrosis factor alpha ,Tyrosine kinase - Abstract
Toll-like receptors (TLRs) are inevitable elements for immunity development and antibody production. TLRs are in close interaction with Bruton's tyrosine kinase which has been found mutated and malfunctioned in the prototype antibody deficiency disease named X-linked agammaglobulinemia (XLA). TLRs' ability was evaluated to induce transcription of TLR-negative regulators, including suppressor of cytokine signaling 1 (SOCS1), interleukin-1 receptor-associated kinase 3 (IRAK-M), tumor necrosis factor alpha-induced protein 3 (TNFAIP3, A20), and Ring finger protein 216 (RNF216), and Tumor necrosis factor-α (TNF-α) and Interferon-α (IFN-α) production via Lipopolysaccharides (LPS) and CpG-A oligodeoxynucleotides (CpG-A ODN). Measured by TaqMan real-time polymerase chain reaction (PCR), meaningfully increased transcripts of SOCS1 and RNF216 were found in XLA peripheral blood mononuclear cells (PBMCs). Also, TLR inductions of XLA have led to similar downregulations in the regulator's transcription which was different from that in healthy donors. Cytokine measurement by enzyme-linked immunosorbent assay (ELISA) revealed a significant lower TNF-α production both before and after LPS. By selected molecules in this study, TLRs' potential defectiveness range expands TLRs expression, downstream signaling, and cytokine production. The results show new potential elements that could play a part in TLRs defect and pathogenesis of agammaglobulinemia as well.
- Published
- 2019