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Bigi MM, Forrellad MA, García JS, Blanco FC, Vázquez CL, Bigi F. An update on Mycobacterium tuberculosis lipoproteins. Future Microbiol 2023; 18:1381-1398. [PMID: 37962486 DOI: 10.2217/fmb-2023-0088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 08/29/2023] [Indexed: 11/15/2023] Open
Abstract
Almost 3% of the proteins of Mycobacterium tuberculosis (M. tuberculosis), the main causative agent of human tuberculosis, are lipoproteins. These lipoproteins are characteristic of the mycobacterial cell envelope and participate in many mechanisms involved in the pathogenesis of M. tuberculosis. In this review, the authors provide an updated analysis of M. tuberculosis lipoproteins and categorize them according to their demonstrated or predicted functions, including transport of compounds to and from the cytoplasm, biosynthesis of the mycobacterial cell envelope, defense and resistance mechanisms, enzymatic activities and signaling pathways. In addition, this updated analysis revealed that at least 40% of M. tuberculosis lipoproteins are glycosylated.
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Affiliation(s)
- María M Bigi
- Instituto de Investigaciones Biomédicas, CONICET, Universidad de Buenos Aires, Paraguay 2155 (C1121ABG), Buenos Aires, Argentina
| | - Marina A Forrellad
- Instituto de Biotecnología, CICVyA, Instituto Nacional de Tecnología Agropecuaria, Argentina (INTA), N. Repetto & de los Reseros, Hurlingham (1686), Buenos Aires, Argentina
- Instituto de Agrobiotecnología y Biología Molecular, INTA-CONICET, N. Repetto & de los Reseros, Hurlingham (1686), Buenos Aires, Argentina
| | - Julia S García
- Instituto de Biotecnología, CICVyA, Instituto Nacional de Tecnología Agropecuaria, Argentina (INTA), N. Repetto & de los Reseros, Hurlingham (1686), Buenos Aires, Argentina
- Instituto de Agrobiotecnología y Biología Molecular, INTA-CONICET, N. Repetto & de los Reseros, Hurlingham (1686), Buenos Aires, Argentina
| | - Federico C Blanco
- Instituto de Biotecnología, CICVyA, Instituto Nacional de Tecnología Agropecuaria, Argentina (INTA), N. Repetto & de los Reseros, Hurlingham (1686), Buenos Aires, Argentina
- Instituto de Agrobiotecnología y Biología Molecular, INTA-CONICET, N. Repetto & de los Reseros, Hurlingham (1686), Buenos Aires, Argentina
| | - Cristina L Vázquez
- Instituto de Biotecnología, CICVyA, Instituto Nacional de Tecnología Agropecuaria, Argentina (INTA), N. Repetto & de los Reseros, Hurlingham (1686), Buenos Aires, Argentina
- Instituto de Agrobiotecnología y Biología Molecular, INTA-CONICET, N. Repetto & de los Reseros, Hurlingham (1686), Buenos Aires, Argentina
| | - Fabiana Bigi
- Instituto de Biotecnología, CICVyA, Instituto Nacional de Tecnología Agropecuaria, Argentina (INTA), N. Repetto & de los Reseros, Hurlingham (1686), Buenos Aires, Argentina
- Instituto de Agrobiotecnología y Biología Molecular, INTA-CONICET, N. Repetto & de los Reseros, Hurlingham (1686), Buenos Aires, Argentina
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Abdalla AE, Alanazi A, Abosalif KOA, Alameen AAM, Junaid K, Manni E, Talha AA, Ejaz H. MicroRNA-155, a double-blade sword regulator of innate tuberculosis immunity. Microb Pathog 2023; 185:106438. [PMID: 37925110 DOI: 10.1016/j.micpath.2023.106438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 10/29/2023] [Accepted: 11/01/2023] [Indexed: 11/06/2023]
Abstract
Tuberculosis (TB) is a chronic, life-threatening disease caused by unusual facultative intracellular bacteria, Mycobacterium tuberculosis. This bacterium has unique resistance to many antimicrobial agents and has become a major global health concern due to emerging multidrug-resistant strains. Additionally, it has developed multiple schemes to exploit host immune signaling and establish long-term survival within host tissues. Thus, understanding the pathways that govern the crosstalk between the bacterium and the immune system could provide a new avenue for therapeutic interventions. MicroRNAs (miRs) are short, noncoding, and regulator RNA molecules that control the expression of cellular genes by targeting their mRNAs post-transcriptionally. MiR-155 is one of the most crucial miR in shaping the host immune defenses against M. tuberculosis. MiR-155 is remarkably downregulated in patients with clear clinical TB symptoms in comparison with latently infected patients and/or healthy individuals, thereby implicating its role in controlling M. tuberculosis infection. However, functional probing of miR-155 suggests dual effects in regulating the host's innate defenses in response to mycobacterial infection. This review provides comprehensive knowledge and future perspectives regarding complex signaling pathways that mediated miR-155 expression during M. tuberculosis infections. Moreover, miR-155-targeting signaling orchestrates inflammatory mediators' production, apoptosis, and autophagy.
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Affiliation(s)
- Abualgasim Elgaili Abdalla
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakaka, 72388, Saudi Arabia.
| | - Awadh Alanazi
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakaka, 72388, Saudi Arabia
| | - Khalid Omer Abdalla Abosalif
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakaka, 72388, Saudi Arabia
| | - Ayman Ali Mohammed Alameen
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakaka, 72388, Saudi Arabia
| | - Kashaf Junaid
- School of Biological and Behavioural Sciences, Queen Mary University of London, London, E1 4NS, UK
| | - Emad Manni
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakaka, 72388, Saudi Arabia
| | - Albadawi Abdelbagi Talha
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakaka, 72388, Saudi Arabia
| | - Hasan Ejaz
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakaka, 72388, Saudi Arabia.
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Yang Z, Man J, Liu Y, Zhang H, Wu D, Shao D, Hao B, Wang S. Study on the Alleviating Effect and Potential Mechanism of Ethanolic Extract of Limonium aureum (L.) Hill. on Lipopolysaccharide-Induced Inflammatory Responses in Macrophages. Int J Mol Sci 2023; 24:16272. [PMID: 38003461 PMCID: PMC10671607 DOI: 10.3390/ijms242216272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 11/09/2023] [Accepted: 11/10/2023] [Indexed: 11/26/2023] Open
Abstract
Inflammation is the host response of immune cells during infection and traumatic tissue injury. An uncontrolled inflammatory response leads to inflammatory cascade, which in turn triggers a variety of diseases threatening human and animal health. The use of existing inflammatory therapeutic drugs is constrained by their high cost and susceptibility to systemic side effects, and therefore new therapeutic candidates for inflammatory diseases need to be urgently developed. Natural products are characterized by wide sources and rich pharmacological activities, which are valuable resources for the development of new drugs. This study aimed to uncover the alleviating effect and potential mechanism of natural product Limonium aureum (LAH) on LPS-induced inflammatory responses in macrophages. The experimental results showed that the optimized conditions for LAH ultrasound-assisted extraction via response surface methodology were an ethanol concentration of 72%, a material-to-solvent ratio of 1:37 g/mL, an extraction temperature of 73 °C, and an extraction power of 70 W, and the average extraction rate of LAH total flavonoids was 0.3776%. Then, data of 1666 components in LAH ethanol extracts were obtained through quasi-targeted metabolomics analysis. The ELISA showed that LAH significantly inhibited the production of pro-inflammatory cytokines while promoting the secretion of anti-inflammatory cytokines. Finally, combined with the results of network pharmacology analysis and protein expression validation of hub genes, it was speculated that LAH may alleviate LPS-induced inflammatory responses of macrophages through the AKT1/RELA/PTGS2 signaling pathway and the MAPK3/JUN signaling pathway. This study preliminarily revealed the anti-inflammatory activity of LAH and the molecular mechanism of its anti-inflammatory action, and provided a theoretical basis for the development of LAH as a new natural anti-inflammatory drug.
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Affiliation(s)
- Zhen Yang
- Key Laboratory of New Animal Drug Project, Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agriculture Sciences, Lanzhou 730050, China; (Z.Y.); (Y.L.); (H.Z.); (D.W.); (D.S.)
| | - Jingyuan Man
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China;
| | - Yu Liu
- Key Laboratory of New Animal Drug Project, Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agriculture Sciences, Lanzhou 730050, China; (Z.Y.); (Y.L.); (H.Z.); (D.W.); (D.S.)
| | - Hongjuan Zhang
- Key Laboratory of New Animal Drug Project, Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agriculture Sciences, Lanzhou 730050, China; (Z.Y.); (Y.L.); (H.Z.); (D.W.); (D.S.)
| | - Di Wu
- Key Laboratory of New Animal Drug Project, Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agriculture Sciences, Lanzhou 730050, China; (Z.Y.); (Y.L.); (H.Z.); (D.W.); (D.S.)
| | - Dan Shao
- Key Laboratory of New Animal Drug Project, Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agriculture Sciences, Lanzhou 730050, China; (Z.Y.); (Y.L.); (H.Z.); (D.W.); (D.S.)
| | - Baocheng Hao
- Key Laboratory of New Animal Drug Project, Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agriculture Sciences, Lanzhou 730050, China; (Z.Y.); (Y.L.); (H.Z.); (D.W.); (D.S.)
| | - Shengyi Wang
- Key Laboratory of New Animal Drug Project, Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agriculture Sciences, Lanzhou 730050, China; (Z.Y.); (Y.L.); (H.Z.); (D.W.); (D.S.)
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Wu JG, Yang WK, Huang HZ, Tang K, Zheng GD. MiRNA-6870-3p Regulates Lipopolysaccharide Induced Epicardial Adipose Tissue Inflammatory Genes via Targeting Tollip-Mediated JNK and NF-κB Signaling in Coronary Artery Disease. Int Heart J 2022; 63:915-927. [DOI: 10.1536/ihj.22-163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Jian-Guo Wu
- Department of Cardiac and Macrovascular Surgery, Central People's Hospital of Zhanjiang
| | - Wen-kai Yang
- Department of Cardiac and Macrovascular Surgery, Central People's Hospital of Zhanjiang
| | - Hao-Zong Huang
- Department of Cardiac and Macrovascular Surgery, Central People's Hospital of Zhanjiang
| | - Kai Tang
- Department of Cardiac and Macrovascular Surgery, Central People's Hospital of Zhanjiang
| | - Guang-Di Zheng
- Department of Cardiac and Macrovascular Surgery, Central People's Hospital of Zhanjiang
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Rosmarinic Acid Attenuates the Lipopolysaccharide-Provoked Inflammatory Response of Vascular Smooth Muscle Cell via Inhibition of MAPK/NF-κB Cascade. Pharmaceuticals (Basel) 2022; 15:ph15040437. [PMID: 35455434 PMCID: PMC9029490 DOI: 10.3390/ph15040437] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 03/23/2022] [Accepted: 03/30/2022] [Indexed: 12/18/2022] Open
Abstract
Rosmarinic acid (RA) is a phenolic compound that has several bioactivities, such as anti-inflammatory and antioxidant activities. Here, we further investigate the anti-inflammatory effect of RA on rat A7r5 aortic smooth muscle cells with exposure to lipopolysaccharide (LPS). Our findings showed that low-dose RA (10–25 μM) did not influence the cell viability and morphology of A7r5 cells and significantly inhibited LPS-induced mRNA expression of the pro-inflammatory mediators TNFα, IL-8, and inducible NO synthase (iNOS). Consistently, RA reduced the production of TNFα, IL-8, and NO by A7r5 cells with exposure to LPS. Signaling cascade analysis showed that LPS induced activation of Erk, JNK, p38 mitogen-activated protein kinase (MAPK), and NF-κB, and RA treatments attenuated the activation of the three MAPKs and NF-κB. Moreover, cotreatment with RA and Erk, JNK, p38 MAPK, or NF-κB inhibitors further downregulated the mRNA expression of TNFα, IL-8, and iNOS, and decreased the production of TNFα, IL-8, and NO by A7r5 cells. Taken together, these findings indicate that RA may ameliorate the LPS-provoked inflammatory response of vascular smooth muscle cells by inhibition of MAPK/NF-κB signaling.
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