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Yuan A, Liu J, Guo J, Chen F, Xu J, Chen H, Wang C, Le Y, Lu D. Calenduloside E Ameliorates Inflammatory Responses in Adipose Tissue via Sirtuin 2-NLRP3 Inflammasome Axis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:20959-20973. [PMID: 39282743 DOI: 10.1021/acs.jafc.4c03917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/26/2024]
Abstract
Obesity-related metabolic diseases are associated with a chronic inflammatory state. Calenduloside E (CE) is a triterpene saponin from sugar beet. In mouse models, CE reduced pro-inflammatory cytokines in white adipose tissue (WAT) and decreased macrophage infiltration of WAT. And CE inhibited pyroptosis in J774A.1 cells and WAT by inhibiting the activation of the nucleotide-binding oligomerization domain, leucine-rich repeat and pyrin domain-containing 3 (NLRP3) inflammasome. Moreover, CE could trigger the activation of Sirtuin 2 (SIRT2), leading to a decrease in the acetylation of NLRP3, particularly at the K24 site. In addition, it has been shown that CE can reduce inflammation in adipocytes that have been induced by macrophage-conditioned medium. However, the selective SIRT2 inhibitor AGK2 hindered the beneficial effects of CE. In summary, CE has the capacity to impede NLRP3-mediated pyroptosis by triggering SIRT2 activity, thus positioning CE as a promising therapeutic avenue for combating obesity-related metabolic disorders.
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Affiliation(s)
- Aini Yuan
- School of Life Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Jing Liu
- School of Life Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Jianan Guo
- School of Life Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Fangming Chen
- Academy of Chinese Medical Science, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Jingyi Xu
- School of Life Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Hang Chen
- School of Life Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
- Department of Medical Research Center, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), Shaoxing 312000, China
| | - Cui Wang
- School of Life Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Yifei Le
- School of Life Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Dezhao Lu
- School of Life Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
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2
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Li H, Zhao J, Cao L, Luo Q, Zhang C, Zhang L. The NLRP3 inflammasome in burns: a novel potential therapeutic target. BURNS & TRAUMA 2024; 12:tkae020. [PMID: 38957662 PMCID: PMC11218784 DOI: 10.1093/burnst/tkae020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 04/14/2024] [Accepted: 04/17/2024] [Indexed: 07/04/2024]
Abstract
Burns are an underestimated serious injury negatively impacting survivors physically, psychologically and economically, and thus are a considerable public health burden. Despite significant advancements in burn treatment, many burns still do not heal or develop serious complications/sequelae. The nucleotide-binding oligomerization domain-like receptors (NLRs) family pyrin domain-containing 3 (NLRP3) inflammasome is a critical regulator of wound healing, including burn wound healing. A better understanding of the pathophysiological mechanism underlying the healing of burn wounds may help find optimal therapeutic targets to promote the healing of burn wounds, reduce complications/sequelae following burn, and maximize the restoration of structure and function of burn skin. This review aimed to summarize current understanding of the roles and regulatory mechanisms of the NLRP3 inflammasome in burn wound healing, as well as the preclinical studies of the involvement of NLRP3 inhibitors in burn treatment, highlighting the potential application of NLRP3-targeted therapy in burn wounds.
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Affiliation(s)
- Haihong Li
- Department of Burns and Plastic Surgery, Seventh Affiliated Hospital, Sun Yat-sen University, 628 Zhenyuan Road, Guangming District, Shenzhen 518107, Guangdong Province, China
| | - Junhong Zhao
- Laboratory of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, 32 South Renmin Road, Shiyan 442000, Hubei Province, China
| | - Leilei Cao
- Department of Burns and Plastic Surgery, Seventh Affiliated Hospital, Sun Yat-sen University, 628 Zhenyuan Road, Guangming District, Shenzhen 518107, Guangdong Province, China
| | - Qizhi Luo
- Department of Burns and Plastic Surgery, Seventh Affiliated Hospital, Sun Yat-sen University, 628 Zhenyuan Road, Guangming District, Shenzhen 518107, Guangdong Province, China
| | - Cuiping Zhang
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department and Fourth Medical Center of PLA General Hospital, 51 Fucheng Road, Beijing 100048, China
| | - Lei Zhang
- Department of Psychiatry and Clinical Psychology, Seventh Affiliated Hospital, Sun Yat-sen University, 628 Zhenyuan Road, Guangming District, Shenzhen 518107, Guangdong Province, China
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3
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Xu S, Lu F, Gao J, Yuan Y. Inflammation-mediated metabolic regulation in adipose tissue. Obes Rev 2024; 25:e13724. [PMID: 38408757 DOI: 10.1111/obr.13724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 11/04/2023] [Accepted: 01/17/2024] [Indexed: 02/28/2024]
Abstract
Chronic inflammation of adipose tissue is a prominent characteristic of many metabolic diseases. Lipid metabolism in adipose tissue is consistently dysregulated during inflammation, which is characterized by substantial infiltration by proinflammatory cells and high cytokine concentrations. Adipose tissue inflammation is caused by a variety of endogenous factors, such as mitochondrial dysfunction, reactive oxygen species (ROS) production, endoplasmic reticulum (ER) stress, cellular senescence, ceramides biosynthesis and mediators of lipopolysaccharides (LPS) signaling. Additionally, the gut microbiota also plays a crucial role in regulating adipose tissue inflammation. Essentially, adipose tissue inflammation arises from an imbalance in adipocyte metabolism and the regulation of immune cells. Specific inflammatory signals, including nuclear factor-κB (NF-κB) signaling, inflammasome signaling and inflammation-mediated autophagy, have been shown to be involved in the metabolic regulation. The pathogenesis of metabolic diseases characterized by chronic inflammation (obesity, insulin resistance, atherosclerosis and nonalcoholic fatty liver disease [NAFLD]) and recent research regarding potential therapeutic targets for these conditions are also discussed in this review.
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Affiliation(s)
- Shujie Xu
- Department of Plastic and Reconstructive Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Feng Lu
- Department of Plastic and Reconstructive Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jianhua Gao
- Department of Plastic and Reconstructive Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yi Yuan
- Department of Plastic and Reconstructive Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
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4
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Scisciola L, Olivieri F, Ambrosino C, Barbieri M, Rizzo MR, Paolisso G. On the wake of metformin: Do anti-diabetic SGLT2 inhibitors exert anti-aging effects? Ageing Res Rev 2023; 92:102131. [PMID: 37984626 DOI: 10.1016/j.arr.2023.102131] [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: 09/15/2023] [Revised: 10/30/2023] [Accepted: 11/15/2023] [Indexed: 11/22/2023]
Abstract
Here we propose that SGLT2 inhibitors (SGLT2i), a class of drugs primarily used to treat type 2 diabetes, could also be repositioned as anti-aging senomorphic drugs (agents that prevent the extrinsic harmful effects of senescent cells). As observed for metformin, another anti-diabetic drug with established anti-aging potential, increasing evidence suggests that SGLT2i can modulate some relevant pathways associated with the aging process, such as free radical production, cellular energy regulation through AMP-activated protein kinase (AMPK), autophagy, and the activation of nuclear factor (NF)-kB/inflammasome. Some interesting pro-healthy effects were also observed on human microbiota. All these mechanisms converge on fueling a systemic proinflammatory condition called inflammaging, now recognized as the main risk factor for accelerated aging and increased risk of age-related disease development and progression. Inflammaging can be worsened by cellular senescence and immunosenescence, which contributes to the increased burden of senescent cells during aging, perpetuating the proinflammatory condition. Interestingly, increasing evidence suggested the direct effects of SGLT-2i against senescent cells, chronic activation of immune cells, and metabolic alterations induced by overnutrition (meta-inflammation). In this framework, we analyzed and discussed the multifaceted impact of SGLT2i, compared with metformin effects, as a potential anti-aging drug beyond diabetes management. Despite promising results in experimental studies, rigorous investigations with well-designed cellular and clinical investigations will need to validate SGLT2 inhibitors' anti-aging effects.
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Affiliation(s)
- Lucia Scisciola
- Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy.
| | - Fabiola Olivieri
- Department of Clinical and Molecular Sciences, DISCLIMO, Università Politecnica delle Marche, Ancona, Italy; Center of Clinical Pathology and Innovative Therapy, IRCCS INRCA, Ancona, Italy.
| | - Concetta Ambrosino
- Biogem Institute of Molecular Biology and Genetics, Ariano Irpino, Italy; Department of Science and Technology, University of Sannio, Benevento, Italy
| | - Michelangela Barbieri
- Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Maria Rosaria Rizzo
- Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Giuseppe Paolisso
- Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy; UniCamillus, International Medical University, Rome, Italy
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5
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Lin H, Ao H, Guo G, Liu M. The Role and Mechanism of Metformin in Inflammatory Diseases. J Inflamm Res 2023; 16:5545-5564. [PMID: 38026260 PMCID: PMC10680465 DOI: 10.2147/jir.s436147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Accepted: 11/17/2023] [Indexed: 12/01/2023] Open
Abstract
Metformin is a classical drug used to treat type 2 diabetes. With the development of research on metformin, it has been found that metformin also has several advantages aside from its hypoglycemic effect, such as anti-inflammatory, anti-aging, anti-cancer, improving intestinal flora, and other effects. The prevention of inflammation is critical because chronic inflammation is associated with numerous diseases of considerable public health. Therefore, there has been growing interest in the role of metformin in treating various inflammatory conditions. However, the precise anti-inflammatory mechanisms of metformin were inconsistent in the reported studies. Thus, this review aims to summarize various currently known possible mechanisms of metformin involved in inflammatory diseases and provide references for the clinical application of metformin.
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Affiliation(s)
- Huan Lin
- Medical Center of Burn Plastic and Wound Repair, The First Affiliated Hospital of Nanchang University, Nanchang, People’s Republic of China
| | - Haiyong Ao
- Jiangxi Key Laboratory of Nanobiomaterials & School of Materials Science and Engineering, East China Jiaotong University, Nanchang, Jiangxi, People’s Republic of China
| | - Guanghua Guo
- Medical Center of Burn Plastic and Wound Repair, The First Affiliated Hospital of Nanchang University, Nanchang, People’s Republic of China
| | - Mingzhuo Liu
- Medical Center of Burn Plastic and Wound Repair, The First Affiliated Hospital of Nanchang University, Nanchang, People’s Republic of China
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Sarkar K, Bank S, Chatterjee A, Dutta K, Das A, Chakraborty S, Paul N, Sarkar J, De S, Ghosh S, Acharyya K, Chattopadhyay D, Das M. Hyaluronic acid-graphene oxide quantum dots nanoconjugate as dual purpose drug delivery and therapeutic agent in meta-inflammation. J Nanobiotechnology 2023; 21:246. [PMID: 37528408 PMCID: PMC10394801 DOI: 10.1186/s12951-023-02015-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 07/21/2023] [Indexed: 08/03/2023] Open
Abstract
Type 2 diabetes mellitus (T2DM) predominantly considered a metabolic disease is now being considered an inflammatory disease as well due to the involvement of meta-inflammation. Obesity-induced adipose tissue inflammation (ATI) is one of the earliest phenomena in the case of meta-inflammation, leading to the advent of insulin resistance (IR) and T2DM. The key events of ATI are orchestrated by macrophages, which aggravate the inflammatory state in the tissue upon activation, ultimately leading to systemic chronic low-grade inflammation and Non-Alcoholic Steatohepatitis (NASH) through the involvement of proinflammatory cytokines. The CD44 receptor on macrophages is overexpressed in ATI, NASH, and IR. Therefore, we developed a CD44 targeted Hyaluronic Acid functionalized Graphene Oxide Quantum Dots (GOQD-HA) nanocomposite for tissue-specific delivery of metformin. Metformin-loaded GOQD-HA (GOQD-HA-Met) successfully downregulated the expression of proinflammatory cytokines and restored antioxidant status at lower doses than free metformin in both palmitic acid-induced RAW264.7 cells and diet induced obese mice. Our study revealed that the GOQD-HA nanocarrier enhanced the efficacy of Metformin primarily by acting as a therapeutic agent apart from being a drug delivery platform. The therapeutic properties of GOQD-HA stem from both HA and GOQD having anti-inflammatory and antioxidant properties respectively. This study unravels the function of GOQD-HA as a targeted drug delivery option for metformin in meta-inflammation where the nanocarrier itself acts as a therapeutic agent.
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Affiliation(s)
- Kunal Sarkar
- Department of Zoology, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, 700019, India
| | - Sarbashri Bank
- Department of Zoology, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, 700019, India
| | - Arindam Chatterjee
- Department of Zoology, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, 700019, India
| | - Koushik Dutta
- Department of Polymer Science and Technology, University of Calcutta, 92 A.P.C. Road, Kolkata, 700009, India
| | - Anwesha Das
- Department of Zoology, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, 700019, India
| | - Santanu Chakraborty
- Department of Zoology, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, 700019, India
| | - Nirvika Paul
- Department of Zoology, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, 700019, India
| | - Jit Sarkar
- Molecular and Applied Mycology and Plant Pathology Laboratory, Department of Botany, University of Calcutta, Kolkata, 700019, India
| | - Sriparna De
- Department of Allied Health Sciences, Brainware University, Kolkata, 700129, India
| | - Sudakshina Ghosh
- Department of Zoology, Vidyasagar College for Women, Kolkata, 700006, India
| | - Krishnendu Acharyya
- Molecular and Applied Mycology and Plant Pathology Laboratory, Department of Botany, University of Calcutta, Kolkata, 700019, India
| | - Dipankar Chattopadhyay
- Department of Polymer Science and Technology, University of Calcutta, 92 A.P.C. Road, Kolkata, 700009, India
| | - Madhusudan Das
- Department of Zoology, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, 700019, India.
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7
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Alfadul H, Sabico S, Ansari MGA, Alnaami AM, Amer OE, Hussain SD, Wani K, Khattak MNK, Clerici M, Al-Daghri NM. Differences and Associations of NLRP3 Inflammasome Levels with Interleukins 1α, 1β, 33 and 37 in Adults with Prediabetes and Type 2 Diabetes Mellitus. Biomedicines 2023; 11:biomedicines11051315. [PMID: 37238986 DOI: 10.3390/biomedicines11051315] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 04/25/2023] [Accepted: 04/27/2023] [Indexed: 05/28/2023] Open
Abstract
Inflammasome activation of the nucleotide-binding domain, leucine-rich-containing family, and pyrin domain-containing-3 (NLRP3) has been observed to be involved in the pathogenesis of numerous inflammatory diseases, including prediabetes (PD) and type 2 diabetes mellitus (T2DM). Varying levels of glycemia can trigger inflammasome activation; yet, limited studies have reported the associations between NLRP3 levels or other circulating interleukins (ILs) and glycemic status. This study investigated the differences and associations between serum levels of NLRP3 and IL-1α, IL-1β, IL-33 and IL-37 in Arab adults with PD and T2DM. A total of 407 Saudi adults (151 males and 256 females) (mean age = 41.4 ± 9.1 years and mean BMI = 30.7 ± 6.4 kg/m2) were included. Overnight-fasting serum samples were collected. The participants were stratified according to T2DM status. Serum levels of NLRP3 and ILs of interest were assessed using commercially available assays. In all participants, age- and BMI-adjusted circulating levels of IL-37 were significantly higher in the T2DM group (p = 0.02) than in healthy controls (HC) and the PD group. A general linear model analysis revealed that NLRP3 levels were significantly influenced by T2DM status; age; and ILs 18, 1α and 33 (p-values 0.03, 0.04, 0.005, 0.004 and 0.007, respectively). IL-1α and triglycerides significantly predicted NLRP3 levels by as much as 46% of the variance perceived (p < 0.01). In conclusion, T2DM status significantly influenced NLRP3 expression and other IL levels in varying degrees. Whether these altered levels of inflammasome markers can be favorably reversed through lifestyle interventions needs to be investigated prospectively in the same population.
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Affiliation(s)
- Hend Alfadul
- Chair for Biomarkers of Chronic Diseases, Biochemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
- Biochemistry Department, College of Science, King Saud University, Riyadh 13579, Saudi Arabia
| | - Shaun Sabico
- Chair for Biomarkers of Chronic Diseases, Biochemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
- Biochemistry Department, College of Science, King Saud University, Riyadh 13579, Saudi Arabia
| | - Mohammed G A Ansari
- Chair for Biomarkers of Chronic Diseases, Biochemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Abdullah M Alnaami
- Chair for Biomarkers of Chronic Diseases, Biochemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Osama E Amer
- Chair for Biomarkers of Chronic Diseases, Biochemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Syed D Hussain
- Chair for Biomarkers of Chronic Diseases, Biochemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Kaiser Wani
- Chair for Biomarkers of Chronic Diseases, Biochemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Malak N K Khattak
- Chair for Biomarkers of Chronic Diseases, Biochemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mario Clerici
- Department of Medical-Surgery Physiopathology and Transplantation, University of Milan, 20122 Milan, Italy
- Don C. Gnocchi Foundation ONLUS, IRCCS, 20122 Milan, Italy
| | - Nasser M Al-Daghri
- Chair for Biomarkers of Chronic Diseases, Biochemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
- Biochemistry Department, College of Science, King Saud University, Riyadh 13579, Saudi Arabia
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8
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Kolb H. Obese visceral fat tissue inflammation: from protective to detrimental? BMC Med 2022; 20:494. [PMID: 36575472 PMCID: PMC9795790 DOI: 10.1186/s12916-022-02672-y] [Citation(s) in RCA: 52] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 11/21/2022] [Indexed: 12/28/2022] Open
Abstract
Obesity usually is accompanied by inflammation of fat tissue, with a prominent role of visceral fat. Chronic inflammation in obese fat tissue is of a lower grade than acute immune activation for clearing the tissue from an infectious agent. It is the loss of adipocyte metabolic homeostasis that causes activation of resident immune cells for supporting tissue functions and regaining homeostasis. Initially, the excess influx of lipids and glucose in the context of overnutrition is met by adipocyte growth and proliferation. Eventual lipid overload of hypertrophic adipocytes leads to endoplasmic reticulum stress and the secretion of a variety of signals causing increased sympathetic tone, lipolysis by adipocytes, lipid uptake by macrophages, matrix remodeling, angiogenesis, and immune cell activation. Pro-inflammatory signaling of adipocytes causes the resident immune system to release increased amounts of pro-inflammatory and other mediators resulting in enhanced tissue-protective responses. With chronic overnutrition, these protective actions are insufficient, and death of adipocytes as well as senescence of several tissue cell types is seen. This structural damage causes the expression or release of immunostimulatory cell components resulting in influx and activation of monocytes and many other immune cell types, with a contribution of stromal cells. Matrix remodeling and angiogenesis is further intensified as well as possibly detrimental fibrosis. The accumulation of senescent cells also may be detrimental via eventual spread of senescence state from affected to neighboring cells by the release of microRNA-containing vesicles. Obese visceral fat inflammation can be viewed as an initially protective response in order to cope with excess ambient nutrients and restore tissue homeostasis but may contribute to tissue damage at a later stage.
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Affiliation(s)
- Hubert Kolb
- Faculty of Medicine, University of Düsseldorf, Moorenstr. 5, 40225, Düsseldorf, Germany. .,West-German Centre of Diabetes and Health, Düsseldorf Catholic Hospital Group, Hohensandweg 37, 40591, Düsseldorf, Germany.
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Åkra S, Seljeflot I, Braathen B, Bratseth V, Hansen CH, Arnesen H, Tønnessen T, Solheim S. The NLRP3 inflammasome activation in subcutaneous, epicardial and pericardial adipose tissue in patients with coronary heart disease undergoing coronary by-pass surgery. ATHEROSCLEROSIS PLUS 2022; 48:47-54. [PMID: 36644557 PMCID: PMC9833236 DOI: 10.1016/j.athplu.2022.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 03/21/2022] [Accepted: 03/21/2022] [Indexed: 02/01/2023]
Abstract
Background and aims Epicardial and pericardial adipose tissue (EAT and PAT) associate with atherosclerosis, however, discussed to have different inflammatory properties. We examined the NLRP3 inflammasome related pathway, playing a pivotal role in atherosclerosis, in EAT, PAT and subcutaneous AT (SAT), their relationship to cell types and anthropometric measures in patients undergoing coronary artery bypass grafting. Methods Biopsies from EAT, PAT and SAT were collected from 52 patients with coronary heart disease (CHD) (median body weight 85.0 kg) and 22 controls. RNA was extracted and expression of interleukin (IL)-1β, IL-18, NLRP3, Caspase-1, toll-like receptor 4 (TLR4), IL-6, IL-6 receptor and gp130 were analyzed by RT-PCR. Results Limited differences in any genes between CHD patients and controls. IL-18 and IL-6 were 4-fold higher expressed in EAT versus PAT (p < 0.01, both) and SAT (p < 0.001, both), whereas caspase-1, IL-6R and gp130 were higher expressed in SAT compared to the other compartments (all p = 0.06-<0.001). Significant correlations between SAT and PAT gene expressions (r = 0.358-0.579, all p ≤ 0.01). Especially NLRP3 and TLR4 associated with the expression of macrophages in all compartments (all p < 0.001). In EAT IL-18 correlated inversely with the expression of macrophages and T-cells. In SAT and PAT most of the mediators associated with body weight. Conclusions Higher expression of IL-18 and IL-6 was observed in EAT in our non-obese CHD patients, not related to inflammatory cells. The NLRP3 inflammasome activation in SAT that mirrored PAT, both related to anthropometrics, suggest that SAT samples, being easily available, to a certain degree, represent adipose tissue inflammation in general.
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Affiliation(s)
- Sissel Åkra
- Center for Clinical Heart Research, Department of Cardiology, Oslo University Hospital Ullevål, Oslo, Norway
| | - Ingebjørg Seljeflot
- Center for Clinical Heart Research, Department of Cardiology, Oslo University Hospital Ullevål, Oslo, Norway,Faculty of Medicine, University of Oslo, Oslo, Norway,Corresponding author. Center for Clinical Heart Research, Department of Cardiology, Oslo University Hospital, Ullevål, Pb 4954 Nydalen, N-0240, Oslo, Norway.
| | - Bjørn Braathen
- Department of Cardiothoracic Surgery, Oslo University Hospital, Oslo, Norway
| | - Vibeke Bratseth
- Center for Clinical Heart Research, Department of Cardiology, Oslo University Hospital Ullevål, Oslo, Norway
| | - Charlotte Holst Hansen
- Center for Clinical Heart Research, Department of Cardiology, Oslo University Hospital Ullevål, Oslo, Norway
| | - Harald Arnesen
- Center for Clinical Heart Research, Department of Cardiology, Oslo University Hospital Ullevål, Oslo, Norway,Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Theis Tønnessen
- Faculty of Medicine, University of Oslo, Oslo, Norway,Department of Cardiothoracic Surgery, Oslo University Hospital, Oslo, Norway
| | - Svein Solheim
- Center for Clinical Heart Research, Department of Cardiology, Oslo University Hospital Ullevål, Oslo, Norway
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10
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Abd El-Fattah EE, Saber S, Mourad AAE, El-Ahwany E, Amin NA, Cavalu S, Yahya G, Saad AS, Alsharidah M, Shata A, Sami HM, Kaddah MMY, Ghanim AMH. The dynamic interplay between AMPK/NFκB signaling and NLRP3 is a new therapeutic target in inflammation: Emerging role of dapagliflozin in overcoming lipopolysaccharide-mediated lung injury. Pharmacotherapy 2022; 147:112628. [PMID: 35032769 DOI: 10.1016/j.biopha.2022.112628] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 01/04/2022] [Accepted: 01/07/2022] [Indexed: 02/07/2023]
Abstract
Acute lung injury (ALI) is one the most common causes of morbidity and mortality in critically ill patients. In this study, we examined for first time the role of dapagliflozin (DPGZ) in lipopolysaccharide (LPS)-induced ALI in rats and determined the underlying molecular mechanisms by evaluating the effects of DPGZ on adenosine monophosphate kinase (AMPK), nuclear transcription factor kappa B, nucleotide-binding and oligomerization domain-like receptor 3 inflammasome activation. Treatment of acute lung injured rats with either low dose (5 mg/kg) or high dose (10 mg/kg) DPGZ significantly decreased oxidative stress by decreasing malondialdehyde and nitric oxide tissue levels with a significant increase in spectrophotometric measurements of superoxide dismutase, catalase, and reduced glutathione levels. DPGZ treatment resulted in a significant anti-inflammatory effect as indicated by suppression in myeloperoxidase activity, MCP-1, IL-1β, IL-18, and TNF-α levels. DPGZ treatment also increased p-AMPK/t-AMPK with a significant reduction in NF-kB P65 binding activity and NFĸB p65 (pSer536) levels. These effects of DPGZ were accompanied by a significant reduction in NLRP3 levels and NLRP3 gene expression and a significant decrease in caspase-1 activity, which were also confirmed by histopathological examinations. We conclude that DPGZ antioxidant and anti-inflammatory activity may occur through regulation of AMPK/NFĸB pathway and inhibition of NLRP3 activation. These results suggest that DPGZ represents a promising intervention for the treatment of ALI, particularly in patients with type 2 diabetes.
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Affiliation(s)
- Eslam E Abd El-Fattah
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa 11152, Egypt.
| | - Sameh Saber
- Department of Pharmacology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa 11152, Egypt.
| | - Ahmed A E Mourad
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Port Said University, Port Said 42511, Egypt.
| | - Eman El-Ahwany
- Department of Immunology, Theodor Bilharz Research Institute, Giza, Egypt.
| | - Noha A Amin
- Department of Hematology, Theodor Bilharz Research Institute, Giza, Egypt.
| | - Simona Cavalu
- Faculty of Medicine and Pharmacy, University of Oradea, P-ta 1 Decembrie 10, 410087 Oradea, Romania.
| | - Galal Yahya
- Department of Microbiology and Immunology, Faculty of Pharmacy, Zagazig University, Al Sharqia, Egypt.
| | - Ahmed S Saad
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Port Said University, Port Said 42511, Egypt.
| | - Mansour Alsharidah
- Department of Physiology, College of Medicine, Qassim University, Qassim 51452, Kingdom of Saudi Arabia.
| | - Ahmed Shata
- Department of Clinical Pharmacology, Faculty of Medicine, Mansoura University, Mansoura, Egypt; Department of Clinical Pharmacy, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt.
| | - Haidy M Sami
- Department of Clinical Pharmacy, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt.
| | - Mohamed M Y Kaddah
- Pharmaceutical and Fermentation Industries Development Center, City of Scientific Research and Technological Applications, New Borg El-Arab, 21934 Alexandria, Egypt.
| | - Amal M H Ghanim
- Department of Biochemistry, Faculty of Pharmacy, Fayoum University, Fayoum, Egypt.
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11
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Stanojcic M, Vinaik R, Abdullahi A, Chen P, Jeschke MG. NLRP3 knockout enhances immune infiltration and inflammatory responses and improves survival in a burn sepsis model. Immunology 2021; 165:195-205. [PMID: 34773253 DOI: 10.1111/imm.13427] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 09/16/2021] [Accepted: 10/01/2021] [Indexed: 12/12/2022] Open
Abstract
Although sepsis in burn patients is a major contributor to mortality, treatments are not always effective and underlying mechanisms have yet to be completely elucidated. NLRP3 inflammasome orchestrates burn-induced, inflammatory-driven pathophysiologic processes. Here, we determined the mechanism of NLRP3 inflammasome activation on bacterial clearance and mortality in burn sepsis. We obtained tissue and blood from 30 wild-type and 30 Nlrp3-/- mice. Mice were subjected to a two-hit model of 25-30% TBSA scald burn followed by Pseudomonas aeruginosa wound infection 72 hours after injury. We also obtained tissue from 34 adult burn patients (≥18 years of age) with early (0-11 days post-burn) and later (≥12 days post-burn) surgical time-points and ten healthy controls. Murine studies indicated that Nlrp3-/- had 30% improved survival and bacterial clearance at the site of injury and is systemically relative to burn sepsis wild type. Greater macrophage and neutrophil infiltration occurred acutely after infection (12 hours) to the site of injury and adipose tissue. This was followed by increased macrophage and neutrophil infiltration to lymphoid organs and liver beyond the acute phase (24 and 72 hours). Interestingly, Nlrp3 ablation increased acute systemic inflammation (IL-6, TNF-α, IL-1β). Septic burn patients had persistently increased adipose NLRP3 by-product expression beyond the acute phase that was more pronounced in late-onset sepsis. Our findings suggest that Nlrp3 genetic ablation enhanced acute tissue-specific inflammatory responsiveness. Likely, this occurs by paradoxically increasing acute immune infiltration and inflammation with a non-persistent response. Clinically, persistent NLRP3-mediated inflammation occurs in septic versus normal burn patients and potentially detrimentally impacts patient outcomes.
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Affiliation(s)
| | - Roohi Vinaik
- Sunnybrook Research Institute, Toronto, Ontario, Canada
| | | | - Peter Chen
- Sunnybrook Research Institute, Toronto, Ontario, Canada
| | - Marc G Jeschke
- Sunnybrook Research Institute, Toronto, Ontario, Canada.,Department of Surgery, Division of Plastic Surgery, University of Toronto, Toronto, Ontario, Canada.,Department of Immunology, University of Toronto, Toronto, Ontario, Canada.,Ross Tilley Burn Centre, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
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12
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Asarian L. The Good, the Bad, and NLRP3-characterizing Novel Roles for the Inflammasome in Adipose-Tissue Biology and Burn Trauma. Endocrinology 2021; 162:6159687. [PMID: 33751110 PMCID: PMC8063676 DOI: 10.1210/endocr/bqab048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Indexed: 11/25/2022]
Affiliation(s)
- Lori Asarian
- University of Vermont, Department of Medicine, Burlington, VT 05405, USA
- Correspondence: Lori Asarian, Department of Medicine, University of Vermont, 89 Beaumont Avenue, Given C352, Burlington, VT 05405, USA. E-mail:
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