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Xu Y, He C, Xi Y, Zhang Y, Bai Y. Gut microbiota and immunosenescence in cancer. Semin Cancer Biol 2024; 104-105:32-45. [PMID: 39127266 DOI: 10.1016/j.semcancer.2024.07.004] [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: 06/25/2024] [Revised: 07/24/2024] [Accepted: 07/29/2024] [Indexed: 08/12/2024]
Abstract
Cancer is generally defined as a disease of aging. With aging, the composition, diversity and functional characteristics of the gut microbiota occur changes, with a decline of beneficial commensal microbes triggered by intrinsic and extrinsic factors (e.g., diet, drugs and chronic health conditions). Nowadays, dysbiosis of the gut microbiota is recognized as a hallmark of cancer. At the same time, aging is accompanied by changes in innate and adaptive immunity, known as immunosenescence, as well as chronic low-grade inflammation, known as inflammaging. The elevated cancer incidence and mortality in the elderly are linked with aging-associated alterations in the gut microbiota that elicit systemic metabolic alterations, leading to immune dysregulation with potentially tumorigenic effects. The gut microbiota and immunosenescence might both affect the response to treatment in cancer patients. In-depth understanding of age-associated alterations in the gut microbiota and immunity will shed light on the risk of cancer development and progression in the elderly. Here, we describe the aging-associated changes of the gut microbiota in cancer, and review the evolving understanding of the gut microbiota-targeted intervention strategies. Furthermore, we summarize the knowledge on the cellular and molecular mechanisms of immunosenescence and its impact on cancer. Finally, we discuss the latest knowledge about the relationships between gut microbiota and immunosenescence, with implications for cancer therapy. Intervention strategies targeting the gut microbiota may attenuate inflammaging and rejuvenate immune function to provide antitumor benefits in elderly patients.
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Affiliation(s)
- Yaozheng Xu
- Department of Laboratory Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110136, China; Liaoning Clinical Research Center for Laboratory Medicine, Shenyang, Liaoning 110136, China.
| | - Chuan He
- Department of Laboratory Medicine, The First Hospital of China Medical University, Shenyang, Liaoning 110001, China.
| | - Ying Xi
- Department of Laboratory Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110136, China; Liaoning Clinical Research Center for Laboratory Medicine, Shenyang, Liaoning 110136, China.
| | - Yue Zhang
- Department of Laboratory Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110136, China; Liaoning Clinical Research Center for Laboratory Medicine, Shenyang, Liaoning 110136, China.
| | - Yibo Bai
- Department of Laboratory Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110136, China; Liaoning Clinical Research Center for Laboratory Medicine, Shenyang, Liaoning 110136, China.
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2
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Khaksari M, Pourali M, Rezaei Talabon S, Gholizadeh Navashenaq J, Bashiri H, Amiresmaili S. Protective effects of 17-β-estradiol on liver injury: The role of TLR4 signaling pathway and inflammatory response. Cytokine 2024; 181:156686. [PMID: 38991382 DOI: 10.1016/j.cyto.2024.156686] [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: 04/20/2024] [Revised: 06/23/2024] [Accepted: 06/25/2024] [Indexed: 07/13/2024]
Abstract
Liver injury, a major global health issue, stems from various causes such as alcohol consumption, nonalcoholic steatohepatitis, obesity, diabetes, metabolic syndrome, hepatitis, and certain medications. The liver's unique susceptibility to ischemia and hypoxia, coupled with the critical role of the gut-liver axis in inflammation, underscores the need for effective therapeutic interventions. The study highlights E2's interaction with estrogen receptors (ERs) and its modulation of the Toll-like receptor 4 (TLR4) signaling pathway as key mechanisms in mitigating liver injury. Activation of TLR4 leads to the release of pro-inflammatory cytokines and chemokines, exacerbating liver inflammation and injury. E2 down-regulates TLR4 expression, reduces oxidative stress, and inhibits pro-inflammatory cytokines, thereby protecting the liver. Both classic (ERα and ERβ) and non-classic [G protein-coupled estrogen receptor (GPER)] receptors are influenced by E2. ERα is particularly crucial for liver regeneration, preventing liver failure by promoting hepatocyte proliferation. Furthermore, E2 exerts anti-inflammatory, antioxidant, and anti-apoptotic effects by inhibiting cytokines such as IL-6, IL-1β, TNF-α, and IL-17, and by reducing lipid peroxidation and free radical damage. The article calls for further clinical research to validate these findings and to develop estrogen-based treatments for liver injuries. Overall, the research emphasizes the significant potential of E2 as a therapeutic agent for liver injuries. It advocates for extensive clinical studies to validate E2 hepatoprotective properties and develop effective estrogen-based treatments.
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Affiliation(s)
- Mohammad Khaksari
- Neuroscince and Endocrinology and Metabolism Research Centers, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | | | | | | | - Hamideh Bashiri
- Neuroscience Research Center, Institute of Neuropharmacology, Department of Physiology and Pharmacology, Afzalipour School of Medicine, Kerman University of Medical Sciences, Kerman, Ira
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3
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Noh JY, Han HW, Kim DM, Giles ED, Farnell YZ, Wright GA, Sun Y. Innate immunity in peripheral tissues is differentially impaired under normal and endotoxic conditions in aging. Front Immunol 2024; 15:1357444. [PMID: 39221237 PMCID: PMC11361940 DOI: 10.3389/fimmu.2024.1357444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 07/22/2024] [Indexed: 09/04/2024] Open
Abstract
Chronic low-grade inflammation is a hallmark of aging, aka "inflammaging", which is linked to a wide range of age-associated diseases. Immune dysfunction increases disease susceptibility, and increases morbidity and mortality of aging. Innate immune cells, including monocytes, macrophages and neutrophils, are the first responders of host defense and the key mediators of various metabolic and inflammatory insults. Currently, the understanding of innate immune programming in aging is largely fragmented. Here we investigated the phenotypic and functional properties of innate immune cells in various peripheral tissues of young and aged mice under normal and endotoxic conditions. Under the steady state, aged mice showed elevated pro-inflammatory monocytes/macrophages in peripheral blood, adipose tissue, liver, and colon. Under lipopolysaccharide (LPS)-induced inflammatory state, the innate immune cells of aged mice showed a different response to LPS stimulus than that of young mice. LPS-induced immune responses displayed differential profiles in different tissues and cell types. In the peripheral blood, when responding to LPS, the aged mice showed higher neutrophils, but lower pro-inflammatory monocytes than that in young mice. In the peritoneal fluid, while young mice exhibited significantly elevated pro-inflammatory neutrophils and macrophages in response to LPS, aged mice exhibited decreased pro-inflammatory neutrophils and variable cytokine responses in macrophages. In the adipose tissue, LPS induced less infiltrated neutrophils but more infiltrated macrophages in old mice than young mice. In the liver, aged mice showed a more robust increase of pro-inflammatory macrophages compared to that in young mice under LPS stimulation. In colon, macrophages showed relatively mild response to LPS in both young and old mice. We have further tested bone-marrow derived macrophages (BMDM) from young and aged mice, we found that BMDM from aged mice have impaired polarization, displaying higher expression of pro-inflammatory markers than those from young mice. These data collectively suggest that innate immunity in peripheral tissues is impaired in aging, and the dysregulation of immunity is tissue- and cell-dependent. Our findings in the rodent model underscore the complexity of aging immunity. Further investigation is needed to determine whether the immune profile observed in aged mice is applicable in age-associated diseases in humans.
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Affiliation(s)
- Ji Yeon Noh
- Department of Nutrition, Texas A&M University, College Station, TX, United States
| | - Hye Won Han
- Department of Nutrition, Texas A&M University, College Station, TX, United States
| | - Da Mi Kim
- Department of Nutrition, Texas A&M University, College Station, TX, United States
| | - Erin D. Giles
- School of Kinesiology, University of Michigan, Ann Arbor, MI, United States
| | - Yuhua Z. Farnell
- Department of Poultry Science, Texas A&M University, College Station, TX, United States
| | - Gus A. Wright
- Department of Veterinary Pathobiology, Texas A&M University,
College Station, TX, United States
| | - Yuxiang Sun
- Department of Nutrition, Texas A&M University, College Station, TX, United States
- Department of Biochemistry & Biophysics, Texas A&M University, College Station, TX, United States
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4
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Habeeba KU, Rasmi AR. Anti-inflammatory and in silico docking studies of Litsea wightiana (Nees) Hook.f. (Lauraceae) leaf constituents. Nat Prod Res 2024:1-8. [PMID: 39093996 DOI: 10.1080/14786419.2024.2385023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 07/09/2024] [Accepted: 07/20/2024] [Indexed: 08/04/2024]
Abstract
Current study aimed to disclose the anti-inflammatory potential of the methanolic leaf extracts of L. wightiana (LWME). The in vitro studies focused on enzyme inhibition assays targeting the key enzymes such as cyclooxygenase, lipoxygenase and nitric oxide synthase and revealed that LWME effectively inhibited the activity of these enzymes. Gene expression studies confirmed the anti-inflammatory effect, demonstrating down regulation of genes associated with inflammation and key proinflammatory factors such as COX-2, TNF-α, IL-6 and NFkB. In vivo anti-inflammatory experiments by carrageenan-induced paw edoema method in model animals and inflammation was found to be reduced by 10% concentration of extract and significant at P˂0.001 level. GCMS and LCMS analysis were conducted and the resulted compounds were docked against target proteins indicated that most of the bioactive compounds showed better binding affinity with enzymes in which the dicentrinone showed higher affinity and it may be useful in the treatment of several ailments.
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Affiliation(s)
| | - Avanoor Ramanathan Rasmi
- PG & Research Department of Botany, Government Victoria College, University of Calicut, Palakkad, Kerala, India
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Martinez PJ, Song JJ, Garay FG, Song KH, Mufford T, Steiner J, DeSisto J, Ellens N, Serkova NJ, Green AL, Borden M. Comprehensive assessment of blood-brain barrier opening and sterile inflammatory response: unraveling the therapeutic window. Sci Rep 2024; 14:17036. [PMID: 39043894 PMCID: PMC11266505 DOI: 10.1038/s41598-024-67916-8] [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: 04/04/2024] [Accepted: 07/17/2024] [Indexed: 07/25/2024] Open
Abstract
Microbubbles (MBs) combined with focused ultrasound (FUS) has emerged as a promising noninvasive technique to permeabilize the blood-brain barrier (BBB) for drug delivery into the brain. However, the safety and biological consequences of BBB opening (BBBO) remain incompletely understood. This study aims to investigate the effects of two parameters mediating BBBO: microbubble volume dose (MVD) and mechanical index (MI). High-resolution MRI-guided FUS was employed in mouse brains to assess BBBO by manipulating these two parameters. Afterward, the sterile inflammatory response (SIR) was studied 6 h post-FUS treatment. Results demonstrated that both MVD and MI significantly influenced the extent of BBBO, with higher MVD and MI leading to increased permeability. Moreover, RNA sequencing revealed upregulation of major inflammatory pathways and immune cell infiltration after BBBO, indicating the presence and extent of SIR. Gene set enrichment analysis identified 12 gene sets associated with inflammatory responses that were significantly upregulated at higher MVD or MI. A therapeutic window was established between therapeutically relevant BBBO and the onset of SIR, providing operating regimes to avoid damage from stimulation of the NFκB pathway via TNFɑ signaling to apoptosis. These results contribute to the optimization and standardization of BBB opening parameters for safe and effective drug delivery to the brain and further elucidate the underlying molecular mechanisms driving sterile inflammation.
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Affiliation(s)
- Payton J Martinez
- Biomedical Engineering Program, University of Colorado Boulder, Boulder, CO, 80303, USA
| | - Jane J Song
- Biomedical Engineering Program, University of Colorado Boulder, Boulder, CO, 80303, USA
| | - Francis G Garay
- Department of Radiology, Cancer Center Animal Imaging Shared Resource, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA
| | - Kang-Ho Song
- Department of Mechanical Engineering, University of Colorado Boulder, Boulder, CO, 80303, USA
| | - Toni Mufford
- Department of Radiology, Cancer Center Animal Imaging Shared Resource, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA
| | - Jenna Steiner
- Department of Radiology, Cancer Center Animal Imaging Shared Resource, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA
| | - John DeSisto
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO, 80045, USA
| | - Nicholas Ellens
- Alpheus Medical, Inc., 1266 Park Rd., Chanhassen, MN, 55317, USA
| | - Natalie J Serkova
- Department of Radiology, Cancer Center Animal Imaging Shared Resource, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA
| | - Adam L Green
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO, 80045, USA
| | - Mark Borden
- Biomedical Engineering Program, University of Colorado Boulder, Boulder, CO, 80303, USA.
- Department of Mechanical Engineering, University of Colorado Boulder, Boulder, CO, 80303, USA.
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Ding Y, Chen Q. Recent advances on signaling pathways and their inhibitors in spinal cord injury. Biomed Pharmacother 2024; 176:116938. [PMID: 38878684 DOI: 10.1016/j.biopha.2024.116938] [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: 04/12/2024] [Revised: 05/27/2024] [Accepted: 06/10/2024] [Indexed: 06/20/2024] Open
Abstract
Spinal cord injury (SCI) is a serious and disabling central nervous system injury. Its complex pathological mechanism can lead to sensory and motor dysfunction. It has been reported that signaling pathway plays a key role in the pathological process and neuronal recovery mechanism of SCI. Such as PI3K/Akt, MAPK, NF-κB, and Wnt/β-catenin signaling pathways. According to reports, various stimuli and cytokines activate these signaling pathways related to SCI pathology, thereby participating in the regulation of pathological processes such as inflammation response, cell apoptosis, oxidative stress, and glial scar formation after injury. Activation or inhibition of relevant pathways can delay inflammatory response, reduce neuronal apoptosis, prevent glial scar formation, improve the microenvironment after SCI, and promote neural function recovery. Based on the role of signaling pathways in SCI, they may be potential targets for the treatment of SCI. Therefore, understanding the signaling pathway and its inhibitors may be beneficial to the development of SCI therapeutic targets and new drugs. This paper mainly summarizes the pathophysiological process of SCI, the signaling pathways involved in SCI pathogenesis, and the potential role of specific inhibitors/activators in its treatment. In addition, this review also discusses the deficiencies and defects of signaling pathways in SCI research. It is hoped that this study can provide reference for future research on signaling pathways in the pathogenesis of SCI and provide theoretical basis for SCI biotherapy.
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Affiliation(s)
- Yi Ding
- Department of Spine Surgery, Ganzhou People's Hospital,16 Meiguan Avenue, Ganzhou, Jiangxi Province 341000, PR China; Department of Spine Surgery, The Affiliated Ganzhou Hospital of Nanchang University (Ganzhou Hospital-Nanfang Hospital, Southern Medical University),16 Meiguan Avenue, Ganzhou, Jiangxi Province 341000, PR China
| | - Qin Chen
- Department of Spine Surgery, Ganzhou People's Hospital,16 Meiguan Avenue, Ganzhou, Jiangxi Province 341000, PR China; Department of Spine Surgery, The Affiliated Ganzhou Hospital of Nanchang University (Ganzhou Hospital-Nanfang Hospital, Southern Medical University),16 Meiguan Avenue, Ganzhou, Jiangxi Province 341000, PR China.
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Feng Y, He C, Liu C, Shao B, Wang D, Wu P. Exploring the Complexity and Promise of Tumor Immunotherapy in Drug Development. Int J Mol Sci 2024; 25:6444. [PMID: 38928150 PMCID: PMC11204037 DOI: 10.3390/ijms25126444] [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: 04/23/2024] [Revised: 06/06/2024] [Accepted: 06/07/2024] [Indexed: 06/28/2024] Open
Abstract
Cancer represents a significant threat to human health, and traditional chemotherapy or cytotoxic therapy is no longer the sole or preferred approach for managing malignant tumors. With advanced research into the immunogenicity of tumor cells and the growing elderly population, tumor immunotherapy has emerged as a prominent therapeutic option. Its significance in treating elderly cancer patients is increasingly recognized. In this study, we review the conceptual classifications and benefits of immunotherapy, and discuss recent developments in new drugs and clinical progress in cancer treatment through various immunotherapeutic modalities with different mechanisms. Additionally, we explore the impact of immunosenescence on the effectiveness of cancer immunotherapy and propose innovative and effective strategies to rejuvenate senescent T cells.
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Affiliation(s)
| | | | | | | | - Dong Wang
- School of Basic Medical Sciences and State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; (Y.F.); (C.H.); (C.L.); (B.S.)
| | - Peijie Wu
- School of Basic Medical Sciences and State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; (Y.F.); (C.H.); (C.L.); (B.S.)
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8
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Wang T, Zhang C, Zhou M, Zhou H, Zhang X, Liu H, Bai M, Xu Y, Yang F, Zhu F, Hao Q, Zhang T, Song S, Qi H, Liu Y. CD8 T cell-derived perforin regulates macrophage-mediated inflammation in a murine model of gout. Clin Rheumatol 2024; 43:2027-2034. [PMID: 38625643 DOI: 10.1007/s10067-024-06964-x] [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: 03/06/2024] [Revised: 03/29/2024] [Accepted: 04/08/2024] [Indexed: 04/17/2024]
Abstract
OBJECTIVES Gout is characterized by hyperuricemia and recurrent inflammatory episodes caused by intra-articular crystal deposition of monosodium urate (MSU). There is a clear relationship between gout and metabolic syndrome. Recent evidence indicates that perforin plays a role in regulating glucose homeostasis and provides protection in diet-induced non-alcoholic steatohepatitis models. However, the impact of perforin on immune inflammation in gout remains unclear. METHODS We induced acute gout models in both wild-type (WT) mice and Prf1null mice by administering intra-articular injections of MSU crystals. We compared the ankle joint swelling and the histological score between the two groups. Furthermore, we investigated underlying mechanisms through in vitro co-culture experiments involving CD8 T cells and macrophages. RESULTS In this study, Prf1null mice showed significantly more pronounced ankle swelling with increased inflammatory cell infiltrations compared with WT mice 24 h after local MSU injection. Moreover, MSU-induced Prf1null mice exhibited increased accumulation of CD8 T cells but not NK cells. Perforin-deficient CD8 T cells displayed reduced cytotoxicity towards bone marrow-derived M0 and M1 macrophages and promoted TNF-α secretion from macrophage. CONCLUSIONS Perforin from CD8 T cells limits joint inflammation in mice with acute gout by downregulating macrophage-mediated inflammation. Key Points • Perforin deficiency increased swelling in the ankle joints of mice upon MSU injection. • Perforin deficiency is associated with increased immune cell recruitment and severe joint damage in gout. • Perforin regulated CD8 T cell accumulation in gout and promoted CD8 T cell cytotoxicity towards M0 and M1 macrophages. • CD8 T cell-derived perforin regulated pro-inflammatory cytokine secretion of macrophage.
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Affiliation(s)
- Tianqi Wang
- Department of Rheumatology and Immunology, Beijing Friendship Hospital, Capital Medical University, 95th, Yongan Road, Beijing, 100050, China
| | - Chunpan Zhang
- Department of Infectious Diseases, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Mingzhu Zhou
- Department of Rheumatology and Immunology, Beijing Friendship Hospital, Capital Medical University, 95th, Yongan Road, Beijing, 100050, China
| | - Hang Zhou
- Department of Rheumatology and Immunology, Beijing Friendship Hospital, Capital Medical University, 95th, Yongan Road, Beijing, 100050, China
| | - Xia Zhang
- Department of Rheumatology and Immunology, Beijing Friendship Hospital, Capital Medical University, 95th, Yongan Road, Beijing, 100050, China
| | - Huilan Liu
- Department of Rheumatology and Immunology, Beijing Friendship Hospital, Capital Medical University, 95th, Yongan Road, Beijing, 100050, China
| | - Mingxin Bai
- Department of Rheumatology and Immunology, Beijing Friendship Hospital, Capital Medical University, 95th, Yongan Road, Beijing, 100050, China
| | - Yuetong Xu
- Department of Rheumatology and Immunology, Beijing Friendship Hospital, Capital Medical University, 95th, Yongan Road, Beijing, 100050, China
| | - Fan Yang
- Department of Rheumatology and Immunology, Beijing Friendship Hospital, Capital Medical University, 95th, Yongan Road, Beijing, 100050, China
| | - Fengyunzhi Zhu
- Department of Rheumatology and Immunology, Beijing Friendship Hospital, Capital Medical University, 95th, Yongan Road, Beijing, 100050, China
| | - Qiyuan Hao
- Department of Rheumatology and Immunology, Beijing Friendship Hospital, Capital Medical University, 95th, Yongan Road, Beijing, 100050, China
| | - Tong Zhang
- Department of Rheumatology and Immunology, Beijing Friendship Hospital, Capital Medical University, 95th, Yongan Road, Beijing, 100050, China
| | - Shuju Song
- Department of Rheumatology and Immunology, Beijing Friendship Hospital, Capital Medical University, 95th, Yongan Road, Beijing, 100050, China
| | - Haiyu Qi
- Department of Rheumatology and Immunology, Beijing Friendship Hospital, Capital Medical University, 95th, Yongan Road, Beijing, 100050, China
| | - Yanying Liu
- Department of Rheumatology and Immunology, Beijing Friendship Hospital, Capital Medical University, 95th, Yongan Road, Beijing, 100050, China.
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9
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Ramoni D, Tirandi A, Montecucco F, Liberale L. Sepsis in elderly patients: the role of neutrophils in pathophysiology and therapy. Intern Emerg Med 2024; 19:901-917. [PMID: 38294676 PMCID: PMC11186952 DOI: 10.1007/s11739-023-03515-1] [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: 09/26/2023] [Accepted: 12/17/2023] [Indexed: 02/01/2024]
Abstract
Sepsis is among the most important causes of mortality, particularly within the elderly population. Sepsis prevalence is on the rise due to different factors, including increasing average population age and the concomitant rise in the prevalence of frailty and chronic morbidities. Recent investigations have unveiled a "trimodal" trajectory for sepsis-related mortality, with the ultimate zenith occurring from 60 to 90 days until several years after the original insult. This prolonged temporal course ostensibly emanates from the sustained perturbation of immune responses, persevering beyond the phase of clinical convalescence. This phenomenon is particularly associated with the aging immune system, characterized by a broad dysregulation commonly known as "inflammaging." Inflammaging associates with a chronic low-grade activation of the innate immune system preventing an appropriate response to infective agents. Notably, during the initial phases of sepsis, neutrophils-essential in combating pathogens-may exhibit compromised activity. Paradoxically, an overly zealous neutrophilic reaction has been observed to underlie multi-organ dysfunction during the later stages of sepsis. Given this scenario, discovering treatments that can enhance neutrophil activity during the early phases of sepsis while curbing their overactivity in the later phases could prove beneficial in fighting pathogens and reducing the detrimental effects caused by an overactive immune system. This narrative review delves into the potential key role of neutrophils in the pathological process of sepsis, focusing on how the aging process impacts their functions, and highlighting possible targets for developing immune-modulatory therapies. Additionally, the review includes tables that outline the principal potential targets for immunomodulating agents.
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Affiliation(s)
- Davide Ramoni
- First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, 6 Viale Benedetto XV, 16132, Genoa, Italy
| | - Amedeo Tirandi
- First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, 6 Viale Benedetto XV, 16132, Genoa, Italy
| | - Fabrizio Montecucco
- First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, 6 Viale Benedetto XV, 16132, Genoa, Italy
- IRCCS Ospedale Policlinico San Martino Genoa-Italian Cardiovascular Network, Genoa, Italy
| | - Luca Liberale
- First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, 6 Viale Benedetto XV, 16132, Genoa, Italy.
- IRCCS Ospedale Policlinico San Martino Genoa-Italian Cardiovascular Network, Genoa, Italy.
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10
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Zhang H, Muhetarijiang M, Chen RJ, Hu X, Han J, Zheng L, Chen T. Mitochondrial Dysfunction: A Roadmap for Understanding and Tackling Cardiovascular Aging. Aging Dis 2024:AD.2024.0058. [PMID: 38739929 DOI: 10.14336/ad.2024.0058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 05/08/2024] [Indexed: 05/16/2024] Open
Abstract
Cardiovascular aging is a progressive remodeling process constituting a variety of cellular and molecular alterations that are closely linked to mitochondrial dysfunction. Therefore, gaining a deeper understanding of the changes in mitochondrial function during cardiovascular aging is crucial for preventing cardiovascular diseases. Cardiac aging is accompanied by fibrosis, cardiomyocyte hypertrophy, metabolic changes, and infiltration of immune cells, collectively contributing to the overall remodeling of the heart. Similarly, during vascular aging, there is a profound remodeling of blood vessel structure. These remodeling present damage to endothelial cells, increased vascular stiffness, impaired formation of new blood vessels (angiogenesis), the development of arteriosclerosis, and chronic vascular inflammation. This review underscores the role of mitochondrial dysfunction in cardiac aging, exploring its impact on fibrosis and myocardial alterations, metabolic remodeling, immune response remodeling, as well as in vascular aging in the heart. Additionally, we emphasize the significance of mitochondria-targeted therapies in preventing cardiovascular diseases in the elderly.
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Affiliation(s)
- Han Zhang
- Department of Cardiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Mairedan Muhetarijiang
- Department of Cardiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Ryan J Chen
- School of Medicine, Zhejiang University, Hangzhou, China
| | - Xiaosheng Hu
- Department of Cardiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Jie Han
- Department of Cardiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Liangrong Zheng
- Department of Cardiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Ting Chen
- Department of Cardiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- Key Laboratory of Precision Medicine for Atherosclerotic Diseases of Zhejiang Province, Affiliated First Hospital of Ningbo University, Ningbo, China
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11
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Alvarado-Ojeda ZA, Trejo-Moreno C, Ferat-Osorio E, Méndez-Martínez M, Fragoso G, Rosas-Salgado G. Role of Angiotensin II in Non-Alcoholic Steatosis Development. Arch Med Res 2024; 55:102986. [PMID: 38492325 DOI: 10.1016/j.arcmed.2024.102986] [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: 08/30/2023] [Revised: 02/23/2024] [Accepted: 03/05/2024] [Indexed: 03/18/2024]
Abstract
Fatty liver is a multifactorial disease characterized by excessive accumulation of lipids in hepatocytes (steatosis), insulin resistance, oxidative stress, and inflammation. This disease has a major public health impact because it is the first stage of a chronic and degenerative process in the liver that can lead to steatohepatitis, cirrhosis, and liver cancer. Although this disease is mainly diagnosed in patients with obesity, type 2 diabetes mellitus, and dyslipidemia, recent evidence indicates that vasoactive hormones such as angiotensin II (ANGII) not only promote endothelial dysfunction (ED) and hypertension, but also cause fatty liver, increase adipose tissue, and develop a pro-steatotic environment characterized by a low-grade systemic pro-inflammatory and pro-oxidant state, with elevated blood lipid levels. The role of ANGII in lipid accumulation has been little studied, so this review aims to summarize existing reports on the possible mechanism of action of ANGII in inducing lipid accumulation in hepatocytes.
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Affiliation(s)
| | - Celeste Trejo-Moreno
- Facultad de Medicina, Universidad Autónoma del Estado de Morelos, Cuernavaca Morelos, Mexico
| | - Eduardo Ferat-Osorio
- División de Investigación en Salud, Unidad de Investigación en Epidemiología Clínica, Hospital de Especialidades, Dr. Bernardo Sepúlveda Gutiérrez, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico
| | - Marisol Méndez-Martínez
- Departamento de Sistemas Biológicos, Universidad Autónoma Metropolitana-Xochimilco, Mexico City, Mexico
| | - Gladis Fragoso
- Departamento de Inmunología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Gabriela Rosas-Salgado
- Facultad de Medicina, Universidad Autónoma del Estado de Morelos, Cuernavaca Morelos, Mexico.
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12
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Caballero-Sánchez N, Alonso-Alonso S, Nagy L. Regenerative inflammation: When immune cells help to re-build tissues. FEBS J 2024; 291:1597-1614. [PMID: 36440547 PMCID: PMC10225019 DOI: 10.1111/febs.16693] [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: 08/29/2022] [Revised: 10/29/2022] [Accepted: 11/18/2022] [Indexed: 11/29/2022]
Abstract
Inflammation is an essential immune response critical for responding to infection, injury and maintenance of tissue homeostasis. Upon injury, regenerative inflammation promotes tissue repair by a timed and coordinated infiltration of diverse cell types and the secretion of growth factors, cytokines and lipids mediators. Remarkably, throughout evolution as well as mammalian development, this type of physiological inflammation is highly associated with immunosuppression. For instance, regenerative inflammation is the consequence of an in situ macrophage polarization resulting in a transition from pro-inflammatory to anti-inflammatory/pro-regenerative response. Immune cells are the first responders upon injury, infiltrating the damaged tissue and initiating a pro-inflammatory response depleting cell debris and necrotic cells. After phagocytosis, macrophages undergo multiple coordinated metabolic and transcriptional changes allowing the transition and dictating the initiation of the regenerative phase. Differences between a highly efficient, complete ad integrum tissue repair, such as, acute skeletal muscle injury, and insufficient regenerative inflammation, as the one developing in Duchenne Muscular Dystrophy (DMD), highlight the importance of a coordinated response orchestrated by immune cells. During regenerative inflammation, these cells interact with others and alter the niche, affecting the character of inflammation itself and, therefore, the progression of tissue repair. Comparing acute muscle injury and chronic inflammation in DMD, we review how the same cells and molecules in different numbers, concentration and timing contribute to very different outcomes. Thus, it is important to understand and identify the distinct functions and secreted molecules of macrophages, and potentially other immune cells, during tissue repair, and the contributors to the macrophage switch leveraging this knowledge in treating diseases.
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Affiliation(s)
- Noemí Caballero-Sánchez
- Doctoral School of Molecular Cell and Immunobiology, Faculty of Medicine, University of Debrecen, Hungary
- Department of Biochemistry and Molecular Biology, Nuclear Receptor Research Laboratory, Faculty of Medicine, University of Debrecen, Hungary
| | - Sergio Alonso-Alonso
- Instituto Oftalmológico Fernández-Vega, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain
| | - Laszlo Nagy
- Department of Biochemistry and Molecular Biology, Nuclear Receptor Research Laboratory, Faculty of Medicine, University of Debrecen, Hungary
- Departments Medicine and Biological Chemistry, Johns Hopkins University School of Medicine, and Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, St Petersburg, Florida, USA
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13
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Ramos-González EJ, Bitzer-Quintero OK, Ortiz G, Hernández-Cruz JJ, Ramírez-Jirano LJ. Relationship between inflammation and oxidative stress and its effect on multiple sclerosis. Neurologia 2024; 39:292-301. [PMID: 38553104 DOI: 10.1016/j.nrleng.2021.10.010] [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: 08/19/2021] [Accepted: 10/28/2021] [Indexed: 04/02/2024] Open
Abstract
INTRODUCTION This paper highlights the relationship of inflammation and oxidative stress as damage mechanisms of Multiple Sclerosis (MS), considered an inflammatory and autoimmune disease. DEVELOPMENT The oxidative stress concept has been defined by an imbalance between oxidants and antioxidants in favor of the oxidants. There is necessary to do physiological functions, like the respiration chain, but in certain conditions, the production of reactive species overpassed the antioxidant systems, which could cause tissue damage. On the other hand, it is well established that inflammation is a complex reaction in the vascularized connective tissue in response to diverse stimuli. However, an unregulated prolonged inflammatory process also can induce tissue damage. CONCLUSION Both inflammation and oxidative stress are interrelated since one could promote the other, leading to a toxic feedback system, which contributes to the inflammatory and demyelination process in MS.
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Affiliation(s)
- E J Ramos-González
- Unidad de Investigacion Biomedica de Zacatecas, Instituto Mexicano del Seguro Social, Zacatecas, Zacatecas, Mexico
| | - O K Bitzer-Quintero
- División de Neurociencias, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social, Guadalajara, Jalisco, Mexico
| | - G Ortiz
- Departamento de Diciplinas Metodológicas y Filosóficas, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Mexico
| | - J J Hernández-Cruz
- Departamento de Diciplinas Metodológicas y Filosóficas, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Mexico
| | - L J Ramírez-Jirano
- División de Neurociencias, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social, Guadalajara, Jalisco, Mexico.
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14
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Liu W, Li HM, Bai G. Construction of a novel mRNA-miRNA-lncRNA/circRNA triple subnetwork associated with immunity and aging in intervertebral disc degeneration. NUCLEOSIDES, NUCLEOTIDES & NUCLEIC ACIDS 2024:1-20. [PMID: 38555595 DOI: 10.1080/15257770.2024.2334353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 03/18/2024] [Indexed: 04/02/2024]
Abstract
OBJECTIVE Intervertebral disk degeneration (IVDD) is one of the most common causes of low back pain. However, in the etiology of IVDD, the specific method by which nucleus pulposus (NP) cell senescence and the immune response induce disease is uncertain. METHODS Gene Expression Omnibus database was used to find differentially expressed genes (DEGs), differentially expressed miRNAs (DE miRNAs), differentially expressed lncRNAs (DE lncRNAs), and differentially expressed circRNAs (DE circRNAs). Functional enrichment analysis was performed through Enrichr database. Potential regulatory miRNAs, lncRNAs and circRNAs of mRNAs were predicted by ENCORI and circBank, respectively. RESULTS We identified 198 upregulated and 131 downregulated genes, 39 upregulated and 22 downregulated miRNAs, 2152 upregulated and 564 downregulated lncRNAs, and 352 upregulated and 279 downregulated circRNAs as DEGs, DE miRNAs, DE lncRNAs, DE circRNAs, respectively. Functional enrichment analysis revealed that they were significantly enriched in Toll-like receptor signaling route and the NF-kappa B signaling pathway. An mRNA-miRNA-lncRNA/circRNA network linked to the pathogenesis of NP cells in IVDD was constructed based on node degree and differential expression level. Eight immune-related DEGs (6 upregulated and 2 downregulated genes) and five aging-related DEGs (3 upregulated and 2 downregulated genes) were identified in the critical network. CONCLUSION We established a novel immune-related and aging-related triple regulatory network of mRNA-miRNA-lncRNA/circRNA ceRNA, among which all RNAs may be utilized as the pathogenesis biomarker of NP cells in IVDD.
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Affiliation(s)
- Wei Liu
- Department of Orthopedics, the Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, Yiwu, Zhejiang, P R China
| | - Hui-Min Li
- Department of Orthopedics, the Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, Yiwu, Zhejiang, P R China
| | - Guangchao Bai
- Department of Orthopedics, the Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, Yiwu, Zhejiang, P R China
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15
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Anton PE, Rutt LN, Kaufman ML, Busquet N, Kovacs EJ, McCullough RL. Binge ethanol exposure in advanced age elevates neuroinflammation and early indicators of neurodegeneration and cognitive impairment in female mice. Brain Behav Immun 2024; 116:303-316. [PMID: 38151165 PMCID: PMC11446185 DOI: 10.1016/j.bbi.2023.12.034] [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: 06/30/2023] [Revised: 12/21/2023] [Accepted: 12/23/2023] [Indexed: 12/29/2023] Open
Abstract
Binge drinking is rising among aged adults (>65 years of age), however the contribution of alcohol misuse to neurodegenerative disease development is not well understood. Both advanced age and repeated binge ethanol exposure increase neuroinflammation, which is an important component of neurodegeneration and cognitive dysfunction. Surprisingly, the distinct effects of binge ethanol exposure on neuroinflammation and associated degeneration in the aged brain have not been well characterized. Here, we establish a model of intermittent binge ethanol exposure in young and aged female mice to investigate the effects of advanced age and binge ethanol on these outcomes. Following intermittent binge ethanol exposure, expression of pro-inflammatory mediators (tnf-α, il-1β, ccl2) was distinctly increased in isolated hippocampal tissue by the combination of advanced age and ethanol. Binge ethanol exposure also increased measures of senescence, the nod like receptor pyrin domain containing 3 (NLRP3) inflammasome, and microglia reactivity in the brains of aged mice compared to young. Binge ethanol exposure also promoted neuropathology in the hippocampus of aged mice, including tau hyperphosphorylation and neuronal death. We further identified advanced age-related deficits in contextual memory that were further negatively impacted by ethanol exposure. These data suggest binge drinking superimposed with advanced age promotes early markers of neurodegenerative disease development and cognitive decline, which may be driven by heightened neuroinflammatory responses to ethanol. Taken together, we propose this novel exposure model of intermittent binge ethanol can be used to identify therapeutic targets to prevent advanced age- and ethanol-related neurodegeneration.
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Affiliation(s)
- Paige E Anton
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO, United States; Alcohol Research Program, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Lauren N Rutt
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO, United States; Alcohol Research Program, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Michael L Kaufman
- RNA Bioscience Initiative, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Nicolas Busquet
- Animal Behavior and In Vivo Neurophysiology Core, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Elizabeth J Kovacs
- GI and Liver Innate Immune Program, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, United States; Division of GI Trauma and Endocrine Surgery, Department of Surgery, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, United States; Alcohol Research Program, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Rebecca L McCullough
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO, United States; GI and Liver Innate Immune Program, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, United States; Alcohol Research Program, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, United States.
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16
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Hao Y, Feng D, Ye H, Liao W. Nobiletin Alleviated Epithelial-Mesenchymal Transition of Hepatocytes in Liver Fibrosis Based on Autophagy-Hippo/YAP Pathway. Mol Nutr Food Res 2024; 68:e2300529. [PMID: 38044268 DOI: 10.1002/mnfr.202300529] [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: 07/24/2023] [Revised: 10/06/2023] [Indexed: 12/05/2023]
Abstract
SCOPE The current researches indicated that the epithelial-mesenchymal transition (EMT) of hepatocytes plays a crucial role in the development of liver fibrosis. To date, there is a paucity of literature regarding the impact of nobiletin (NOB) on liver fibrosis. This study investigates the inhibitory effect of NOB on EMT in hepatocytes during the progression of liver fibrosis and its underlying mechanism. METHODS AND RESULTS The findings demonstrated that NOB significantly suppresses liver fibrosis in carbon tetrachloride (CCl4 )-induced mice by reducing inflammation and fiber deposition in the liver. Moreover, NOB mitigates EMT in hepatocytes, concurrently alleviating inflammatory status and reducing the production of reactive oxygen species (ROS) generation. The comprehensive investigation reveals that the hepatoprotective effect of NOB in liver fibrosis is attributed to autophagy activation, as evidenced by a significant increase in LC3 II expression and p62 degradation upon NOB treatment. Additionally, NOB activates the Hippo/YAP pathway by downregulating YAP and its downstream targets in liver fibrosis, which is regulated by autophagy based on experiments with chloroquine (CQ), 3-methyladenine (3-MA), and siYAP intervention. CONCLUSION Therefore, this study provides evidences that NOB can protect hepatocytes from undergoing EMT during liver fibrosis by inducing autophagy and subsequently modulating the Hippo/YAP pathway.
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Affiliation(s)
- Yuting Hao
- Department of Nutrition and Food Hygiene, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, 510515, China
| | - Dongliang Feng
- Department of Nutrition and Food Hygiene, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, 510515, China
| | - Huarui Ye
- Department of Nutrition and Food Hygiene, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, 510515, China
| | - Wenzhen Liao
- Department of Nutrition and Food Hygiene, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, 510515, China
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17
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Byappanahalli AM, Omoniyi V, Noren Hooten N, Smith JT, Mode NA, Ezike N, Zonderman AB, Evans MK. Extracellular vesicle mitochondrial DNA levels are associated with race and mitochondrial DNA haplogroup. iScience 2024; 27:108724. [PMID: 38226163 PMCID: PMC10788249 DOI: 10.1016/j.isci.2023.108724] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 11/08/2023] [Accepted: 12/11/2023] [Indexed: 01/17/2024] Open
Abstract
Circulating cell-free mitochondrial DNA (ccf-mtDNA) acts as a damage-associated molecular pattern molecule and may be cargo within extracellular vesicles (EVs). ccf-mtDNA and select mitochondrial DNA (mtDNA) haplogroups are associated with cardiovascular disease. We hypothesized that ccf-mtDNA and plasma EV mtDNA would be associated with hypertension, sex, self-identified race, and mtDNA haplogroup ancestry. Participants were normotensive (n = 107) and hypertensive (n = 108) African American and White adults from the Healthy Aging in Neighborhoods of Diversity across the Life Span study. ccf-mtDNA levels were higher in African American participants compared with White participants in both plasma and EVs, but ccf-mtDNA levels were not related to hypertension. EV mtDNA levels were highest in African American participants with African mtDNA haplogroup. Circulating inflammatory protein levels were altered with mtDNA haplogroup, race, and EV mtDNA. Our findings highlight that race is a social construct and that ancestry is crucial when examining health and biomarker differences between groups.
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Affiliation(s)
- Anjali M. Byappanahalli
- Laboratory of Epidemiology and Population Sciences, National Institute on Aging, National Institutes of Health, 251 Bayview Boulevard, Baltimore, MD 21224, USA
| | - Victor Omoniyi
- Laboratory of Epidemiology and Population Sciences, National Institute on Aging, National Institutes of Health, 251 Bayview Boulevard, Baltimore, MD 21224, USA
| | - Nicole Noren Hooten
- Laboratory of Epidemiology and Population Sciences, National Institute on Aging, National Institutes of Health, 251 Bayview Boulevard, Baltimore, MD 21224, USA
| | - Jessica T. Smith
- Laboratory of Epidemiology and Population Sciences, National Institute on Aging, National Institutes of Health, 251 Bayview Boulevard, Baltimore, MD 21224, USA
| | - Nicolle A. Mode
- Laboratory of Epidemiology and Population Sciences, National Institute on Aging, National Institutes of Health, 251 Bayview Boulevard, Baltimore, MD 21224, USA
| | - Ngozi Ezike
- Laboratory of Epidemiology and Population Sciences, National Institute on Aging, National Institutes of Health, 251 Bayview Boulevard, Baltimore, MD 21224, USA
| | - Alan B. Zonderman
- Laboratory of Epidemiology and Population Sciences, National Institute on Aging, National Institutes of Health, 251 Bayview Boulevard, Baltimore, MD 21224, USA
| | - Michele K. Evans
- Laboratory of Epidemiology and Population Sciences, National Institute on Aging, National Institutes of Health, 251 Bayview Boulevard, Baltimore, MD 21224, USA
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Kumar SJ, Shukla S, Kumar S, Mishra P. Immunosenescence and Inflamm-Aging: Clinical Interventions and the Potential for Reversal of Aging. Cureus 2024; 16:e53297. [PMID: 38435871 PMCID: PMC10906346 DOI: 10.7759/cureus.53297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 01/31/2024] [Indexed: 03/05/2024] Open
Abstract
Inflammation is often associated with the impairment of the ability to sustain the consequences of the physical, chemical, nutritional, and antigenic triggers of inflammation. The process of immunosenescence may only partially be explained by the senescence of cells, tissues, or the organism, and, hence, the hallmarks of immunosenescence may be markedly and differentially affected by the history of an individual's pathogenic encounter. Inflammation is a key component of immunosenescence, which itself is a direct consequence of aging. This review article highlights the therapeutic interventions for slowing the processes of inflamm-aging and immunosenescence and the possible reversal of aging and includes domains of immunomodulatory interventions, vaccination strategies, nutritional interventions, stem cell therapies, personalized medicine, microbiome interventions, and the positive effects of physical activity and exercise.
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Affiliation(s)
- Samayak J Kumar
- Pathology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Samarth Shukla
- Pathology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Sunil Kumar
- Medicine, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Preeti Mishra
- Pathology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
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19
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Pius AK, Toya M, Gao Q, Lee ML, Ergul YS, Chow SKH, Goodman SB. Effects of Aging on Osteosynthesis at Bone-Implant Interfaces. Biomolecules 2023; 14:52. [PMID: 38254652 PMCID: PMC10813487 DOI: 10.3390/biom14010052] [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: 12/05/2023] [Revised: 12/23/2023] [Accepted: 12/27/2023] [Indexed: 01/24/2024] Open
Abstract
Joint replacement is a common surgery and is predominantly utilized for treatment of osteoarthritis in the aging population. The longevity of many of these implants depends on bony ingrowth. Here, we provide an overview of current techniques in osteogenesis (inducing bone growth onto an implant), which is affected by aging and inflammation. In this review we cover the biologic underpinnings of these processes as well as the clinical applications. Overall, aging has a significant effect at the cellular and macroscopic level that impacts osteosynthesis at bone-metal interfaces after joint arthroplasty; potential solutions include targeting prolonged inflammation, preventing microbial adhesion, and enhancing osteoinductive and osteoconductive properties.
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Affiliation(s)
- Alexa K. Pius
- Department of Orthopaedic Surgery, School of Medicine, Stanford University, Stanford, CA 94063, USA; (A.K.P.); (M.T.); (Q.G.); (M.L.L.); (Y.S.E.); (S.K.-H.C.)
| | - Masakazu Toya
- Department of Orthopaedic Surgery, School of Medicine, Stanford University, Stanford, CA 94063, USA; (A.K.P.); (M.T.); (Q.G.); (M.L.L.); (Y.S.E.); (S.K.-H.C.)
| | - Qi Gao
- Department of Orthopaedic Surgery, School of Medicine, Stanford University, Stanford, CA 94063, USA; (A.K.P.); (M.T.); (Q.G.); (M.L.L.); (Y.S.E.); (S.K.-H.C.)
| | - Max L. Lee
- Department of Orthopaedic Surgery, School of Medicine, Stanford University, Stanford, CA 94063, USA; (A.K.P.); (M.T.); (Q.G.); (M.L.L.); (Y.S.E.); (S.K.-H.C.)
| | - Yasemin Sude Ergul
- Department of Orthopaedic Surgery, School of Medicine, Stanford University, Stanford, CA 94063, USA; (A.K.P.); (M.T.); (Q.G.); (M.L.L.); (Y.S.E.); (S.K.-H.C.)
| | - Simon Kwoon-Ho Chow
- Department of Orthopaedic Surgery, School of Medicine, Stanford University, Stanford, CA 94063, USA; (A.K.P.); (M.T.); (Q.G.); (M.L.L.); (Y.S.E.); (S.K.-H.C.)
| | - Stuart Barry Goodman
- Department of Orthopaedic Surgery, School of Medicine, Stanford University, Stanford, CA 94063, USA; (A.K.P.); (M.T.); (Q.G.); (M.L.L.); (Y.S.E.); (S.K.-H.C.)
- Department of Bioengineering, Stanford University, Stanford, CA 94305, USA
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20
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Zhang S, Liu C, Sun J, Li Y, Lu J, Xiong X, Hu L, Zhao H, Zhou H. Bridging the Gap: Investigating the Link between Inflammasomes and Postoperative Cognitive Dysfunction. Aging Dis 2023; 14:1981-2002. [PMID: 37450925 PMCID: PMC10676784 DOI: 10.14336/ad.2023.0501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Accepted: 05/01/2023] [Indexed: 07/18/2023] Open
Abstract
Postoperative cognitive dysfunction (POCD) is a cluster of cognitive problems that may arise after surgery. POCD symptoms include memory loss, focus inattention, and communication difficulties. Inflammasomes, intracellular multiprotein complexes that control inflammation, may have a significant role in the development of POCD. It has been postulated that the NLRP3 inflammasome promotes cognitive impairment by triggering the inflammatory response in the brain. Nevertheless, there are many gaps in the current literature to understand the underlying pathophysiological mechanisms and develop future therapy. This review article underlines the limits of our current knowledge about the NLRP3 (NOD-, LRR- and pyrin domain-containing protein 3) inflammasome and POCD. We first discuss inflammasomes and their types, structures, and functions, then summarize recent evidence of the NLRP3 inflammasome's involvement in POCD. Next, we propose a hypothesis that suggests the involvement of inflammasomes in multiple organs, including local surgical sites, blood circulation, and other peripheral organs, leading to systemic inflammation and subsequent neuronal dysfunction in the brain, resulting in POCD. Research directions are then discussed, including analyses of inflammasomes in more clinical POCD animal models and clinical trials, studies of inflammasome types that are involved in POCD, and investigations into whether inflammasomes occur at the surgical site, in circulating blood, and in peripheral organs. Finally, we discuss the potential benefits of using new technologies and approaches to study inflammasomes in POCD. A thorough investigation of inflammasomes in POCD might substantially affect clinical practice.
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Affiliation(s)
- Siyu Zhang
- Anesthesiology Department, Zhejiang Chinese Medical University, Hangzhou, China.
- Anesthesiology Department, The Second Hospital of Jiaxing, The Second Affiliated Hospital of Jiaxing University, Jiaxing Key Laboratory of Basic Research and Clinical Transformation of Perioperative Precision Anesthesia, Jiaxing, China.
| | - Cuiying Liu
- School of Nursing, Capital Medical University, Beijing, China.
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Joint Innovation Center for Brain Disorders, Capital Medical University, Beijing, China.
| | - Jintao Sun
- Anesthesiology Department, Zhejiang Chinese Medical University, Hangzhou, China.
- Anesthesiology Department, The Second Hospital of Jiaxing, The Second Affiliated Hospital of Jiaxing University, Jiaxing Key Laboratory of Basic Research and Clinical Transformation of Perioperative Precision Anesthesia, Jiaxing, China.
| | - Yang Li
- Anesthesiology Department, Zhejiang Chinese Medical University, Hangzhou, China.
- Anesthesiology Department, The Second Hospital of Jiaxing, The Second Affiliated Hospital of Jiaxing University, Jiaxing Key Laboratory of Basic Research and Clinical Transformation of Perioperative Precision Anesthesia, Jiaxing, China.
| | - Jian Lu
- Anesthesiology Department, The Second Hospital of Jiaxing, The Second Affiliated Hospital of Jiaxing University, Jiaxing Key Laboratory of Basic Research and Clinical Transformation of Perioperative Precision Anesthesia, Jiaxing, China.
| | - Xiaoxing Xiong
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Li Hu
- Anesthesiology Department, The Second Hospital of Jiaxing, The Second Affiliated Hospital of Jiaxing University, Jiaxing Key Laboratory of Basic Research and Clinical Transformation of Perioperative Precision Anesthesia, Jiaxing, China.
| | - Heng Zhao
- Anesthesiology Department, The Second Hospital of Jiaxing, The Second Affiliated Hospital of Jiaxing University, Jiaxing Key Laboratory of Basic Research and Clinical Transformation of Perioperative Precision Anesthesia, Jiaxing, China.
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Joint Innovation Center for Brain Disorders, Capital Medical University, Beijing, China.
| | - Hongmei Zhou
- Anesthesiology Department, Zhejiang Chinese Medical University, Hangzhou, China.
- Anesthesiology Department, The Second Hospital of Jiaxing, The Second Affiliated Hospital of Jiaxing University, Jiaxing Key Laboratory of Basic Research and Clinical Transformation of Perioperative Precision Anesthesia, Jiaxing, China.
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Cetin E, Mazzarino M, González-Mateo GT, Kopytina V, Meran S, Fraser D, López-Cabrera M, Labéta MO, Raby AC. Calprotectin blockade inhibits long-term vascular pathology following peritoneal dialysis-associated bacterial infection. Front Cell Infect Microbiol 2023; 13:1285193. [PMID: 38094743 PMCID: PMC10716465 DOI: 10.3389/fcimb.2023.1285193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 11/02/2023] [Indexed: 12/18/2023] Open
Abstract
Bacterial infections and the concurrent inflammation have been associated with increased long-term cardiovascular (CV) risk. In patients receiving peritoneal dialysis (PD), bacterial peritonitis is a common occurrence, and each episode further increases late CV mortality risk. However, the underlying mechanism(s) remains to be elucidated before safe and efficient anti-inflammatory interventions can be developed. Damage-Associated Molecular Patterns (DAMPs) have been shown to contribute to the acute inflammatory response to infections, but a potential role for DAMPs in mediating long-term vascular inflammation and CV risk following infection resolution in PD, has not been investigated. We found that bacterial peritonitis in mice that resolved within 24h led to CV disease-promoting systemic and vascular immune-mediated inflammatory responses that were maintained up to 28 days. These included higher blood proportions of inflammatory leukocytes displaying increased adhesion molecule expression, higher plasma cytokines levels, and increased aortic inflammatory and atherosclerosis-associated gene expression. These effects were also observed in infected nephropathic mice and amplified in mice routinely exposed to PD fluids. A peritonitis episode resulted in elevated plasma levels of the DAMP Calprotectin, both in PD patients and mice, here the increase was maintained up to 28 days. In vitro, the ability of culture supernatants from infected cells to promote key inflammatory and atherosclerosis-associated cellular responses, such as monocyte chemotaxis, and foam cell formation, was Calprotectin-dependent. In vivo, Calprotectin blockade robustly inhibited the short and long-term peripheral and vascular consequences of peritonitis, thereby demonstrating that targeting of the DAMP Calprotectin is a promising therapeutic strategy to reduce the long-lasting vascular inflammatory aftermath of an infection, notably PD-associated peritonitis, ultimately lowering CV risk.
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Affiliation(s)
- Esra Cetin
- Wales Kidney Research Unit, Division of Infection & Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Morgane Mazzarino
- Wales Kidney Research Unit, Division of Infection & Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Guadalupe T. González-Mateo
- Tissue and Organ Homeostasis Program, Centro de Biología Molecular Severo Ochoa – Consejo Superior de Investigaciones Científicas – Universidad Autónoma de Madrid (CBMSO-CSIC-UAM), Madrid, Spain
- Premium Research, S.L., Guadalajara, Spain
| | - Valeria Kopytina
- Tissue and Organ Homeostasis Program, Centro de Biología Molecular Severo Ochoa – Consejo Superior de Investigaciones Científicas – Universidad Autónoma de Madrid (CBMSO-CSIC-UAM), Madrid, Spain
| | - Soma Meran
- Wales Kidney Research Unit, Division of Infection & Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Donald Fraser
- Wales Kidney Research Unit, Division of Infection & Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Manuel López-Cabrera
- Tissue and Organ Homeostasis Program, Centro de Biología Molecular Severo Ochoa – Consejo Superior de Investigaciones Científicas – Universidad Autónoma de Madrid (CBMSO-CSIC-UAM), Madrid, Spain
| | - Mario O. Labéta
- Wales Kidney Research Unit, Division of Infection & Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Anne-Catherine Raby
- Wales Kidney Research Unit, Division of Infection & Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
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22
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Wyczanska M, Rohling J, Keller U, Benz MR, Kirschning C, Lange-Sperandio B. TLR2 mediates renal apoptosis in neonatal mice subjected experimentally to obstructive nephropathy. PLoS One 2023; 18:e0294142. [PMID: 38015955 PMCID: PMC10684073 DOI: 10.1371/journal.pone.0294142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 10/25/2023] [Indexed: 11/30/2023] Open
Abstract
Urinary tract obstruction during renal development leads to inflammation, tubular apoptosis, and interstitial fibrosis. Toll like receptors (TLRs) expressed on leukocytes, myofibroblasts and renal cells play a central role in acute inflammation. TLR2 is activated by endogenous danger signals in the kidney; its contribution to renal injury in early life is still a controversial topic. We analyzed TLR2 for a potential role in the neonatal mouse model of congenital obstructive nephropathy. Inborn obstructive nephropathies are a leading cause of end-stage kidney disease in children. Thus, newborn Tlr2-/- and wild type (WT) C57BL/6 mice were subjected to complete unilateral ureteral obstruction (UUO) or sham-operation on the 2nd day of life. The neonatal kidneys were harvested and analyzed at days 7 and 14 of life. Relative expression levels of TLR2, caspase-8, Bcl-2, Bax, GSDMD, GSDME, HMGB1, TNF, galectin-3, α-SMA, MMP-2, and TGF-β proteins were quantified semi-quantitatively by immunoblot analyses. Tubular apoptosis, proliferation, macrophage- and T-cell infiltration, tubular atrophy, and interstitial fibrosis were analyzed immunohistochemically. Neonatal Tlr2-/- mice kidneys exhibited less tubular and interstitial apoptosis as compared to those of WT C57BL/6 mice after UUO. UUO induced neonatally did trigger pyroptosis in kidneys, however to similar degrees in Tlr2-/- and WT mice. Also, tubular atrophy, interstitial fibrosis, tubular proliferation, as well as macrophage and T-cell infiltration were unremarkable. We conclude that while TLR2 mediates apoptosis in the kidneys of neonatal mice subjected to UUO, leukocyte recruitment, interstitial fibrosis, and consequent neonatal obstructive nephropathy might lack a TLR2 involvement.
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Affiliation(s)
- Maja Wyczanska
- Department of Pediatrics, Dr. v. Hauner Children’s Hospital, University Hospital, LMU Munich, Munich, Germany
| | - Jana Rohling
- Department of Pediatrics, Dr. v. Hauner Children’s Hospital, University Hospital, LMU Munich, Munich, Germany
| | - Ursula Keller
- Department of Pediatrics, Dr. v. Hauner Children’s Hospital, University Hospital, LMU Munich, Munich, Germany
| | | | | | - Bärbel Lange-Sperandio
- Department of Pediatrics, Dr. v. Hauner Children’s Hospital, University Hospital, LMU Munich, Munich, Germany
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23
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McDade TW, Ryan CP, Adair LS, Lee NR, Carba DB, MacIsaac JL, Dever K, Atashzay P, Kobor M, Kuzawa CW. Association between infectious exposures in infancy and epigenetic age acceleration in young adulthood in metropolitan Cebu, Philippines. Am J Hum Biol 2023; 35:e23948. [PMID: 37338007 PMCID: PMC10730771 DOI: 10.1002/ajhb.23948] [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: 12/21/2022] [Revised: 06/06/2023] [Accepted: 06/07/2023] [Indexed: 06/21/2023] Open
Abstract
OBJECTIVES The drivers of human life expectancy gains over the past 200 years are not well-established, with a potential role for historical reductions in infectious disease. We investigate whether infectious exposures in infancy predict biological aging using DNA methylation-based markers that forecast patterns of morbidity and mortality later in life. METHODS N = 1450 participants from the Cebu Longitudinal Health and Nutrition Survey-a prospective birth cohort initiated in 1983-provided complete data for the analyses. Mean chronological age was 20.9 years when venous whole blood samples were drawn for DNA extraction and methylation analysis, with subsequent calculation of three epigenetic age markers: Horvath, GrimAge, and DunedinPACE. Unadjusted and adjusted least squares regression models were evaluated to test the hypothesis that infectious exposures in infancy are associated with epigenetic age. RESULTS Birth in the dry season, a proxy measure for increased infectious exposure in the first year of life, as well as the number of symptomatic infections in the first year of infancy, predicted lower epigenetic age. Infectious exposures were associated with the distribution of white blood cells in adulthood, which were also associated with measures of epigenetic age. CONCLUSIONS We document negative associations between measures of infectious exposure in infancy and DNA methylation-based measures of aging. Additional research, across a wider range of epidemiological settings, is needed to clarify the role of infectious disease in shaping immunophenotypes and trajectories of biological aging and human life expectancy.
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Affiliation(s)
- Thomas W. McDade
- Department of Anthropology, Northwestern University,
Evanston, IL 60208
- Institute for Policy Research, Northwestern University,
Evanston, IL 60208
| | - Calen P. Ryan
- Robert N. Butler Columbia Aging Center, Department of
Epidemiology, Columbia University Mailman School of Public Health
| | - Linda S. Adair
- Department of Nutrition, Gillings School of Global Public
Health, Carolina Population Center, CB #8120, University of North Carolina at Chapel
Hill
| | - Nanette R. Lee
- Office of Population Studies Foundation, University of San
Carlos, Talamban, Cebu City Philippines
| | - Delia B. Carba
- Office of Population Studies Foundation, University of San
Carlos, Talamban, Cebu City Philippines
| | - Julia L. MacIsaac
- Department of Medical Genetics, Faculty of Medicine,
University of British Columbia, Vancouver, Canada
- Edwin S.H. Leong Healthy Aging Program, University of
British Columbia, Vancouver, Canada
- Centre for Molecular Medicine and Therapeutics, Vancouver,
British Columbia, Vancouver, Canada
| | - Kristy Dever
- Department of Medical Genetics, Faculty of Medicine,
University of British Columbia, Vancouver, Canada
- Edwin S.H. Leong Healthy Aging Program, University of
British Columbia, Vancouver, Canada
- Centre for Molecular Medicine and Therapeutics, Vancouver,
British Columbia, Vancouver, Canada
| | - Parmida Atashzay
- Department of Medical Genetics, Faculty of Medicine,
University of British Columbia, Vancouver, Canada
- Edwin S.H. Leong Healthy Aging Program, University of
British Columbia, Vancouver, Canada
- Centre for Molecular Medicine and Therapeutics, Vancouver,
British Columbia, Vancouver, Canada
| | - Mike Kobor
- Department of Medical Genetics, Faculty of Medicine,
University of British Columbia, Vancouver, Canada
- Edwin S.H. Leong Healthy Aging Program, University of
British Columbia, Vancouver, Canada
- Centre for Molecular Medicine and Therapeutics, Vancouver,
British Columbia, Vancouver, Canada
| | - Christopher W. Kuzawa
- Department of Anthropology, Northwestern University,
Evanston, IL 60208
- Institute for Policy Research, Northwestern University,
Evanston, IL 60208
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24
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Martinez P, Song JJ, Garay FG, Song KH, Mufford T, Steiner J, DeSisto J, Ellens N, Serkova NJ, Green AL, Borden M. Comprehensive Assessment of Blood-Brain Barrier Opening and Sterile Inflammatory Response: Unraveling the Therapeutic Window. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.10.23.563613. [PMID: 37961395 PMCID: PMC10634745 DOI: 10.1101/2023.10.23.563613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Microbubbles (MBs) combined with focused ultrasound (FUS) have emerged as a promising noninvasive technique to permeabilize the blood-brain barrier (BBB) for drug delivery to the brain. However, the safety and biological consequences of BBB opening remain incompletely understood. This study investigates the effects of varying microbubble volume doses (MVD) and ultrasound mechanical indices (MI) on BBB opening and the sterile inflammatory response (SIR) using high-resolution ultra-high field MRI-guided FUS in mouse brains. The results demonstrate that both MVD and MI significantly influence the extent of BBB opening, with higher doses and mechanical indices leading to increased permeability. Moreover, RNA sequencing reveals upregulated inflammatory pathways and immune cell infiltration after BBB opening, suggesting the presence and extent of SIR. Gene set enrichment analysis identifies 12 gene sets associated with inflammatory responses that are upregulated at higher doses of MVD or MI. A therapeutic window is established between significant BBB opening and the onset of SIR, providing operating regimes for avoiding each three classes of increasing damage from stimulation of the NFκB pathway via TNFL signaling to apoptosis. This study contributes to the optimization and standardization of BBB opening parameters for safe and effective drug delivery to the brain and sheds light on the underlying molecular mechanisms of the sterile inflammatory response. Significance Statement The significance of this study lies in its comprehensive investigation of microbubble-facilitated focused ultrasound for blood-brain barrier (BBB) opening. By systematically exploring various combinations of microbubble volume doses and ultrasound mechanical indices, the study reveals their direct impact on the extent of BBB permeability and the induction of sterile inflammatory response (SIR). The establishment of a therapeutic window between significant BBB opening and the onset of SIR provides critical insights for safe and targeted drug delivery to the brain. These findings advance our understanding of the biological consequences of BBB opening and contribute to optimizing parameters for clinical applications, thus minimizing potential health risks, and maximizing the therapeutic potential of this technique.
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25
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Díaz-Lezama N, Kajtna J, Wu J, Ayten M, Koch SF. Microglial and macroglial dynamics in a model of retinitis pigmentosa. Vision Res 2023; 210:108268. [PMID: 37295269 DOI: 10.1016/j.visres.2023.108268] [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: 02/06/2023] [Revised: 05/12/2023] [Accepted: 05/12/2023] [Indexed: 06/12/2023]
Abstract
In retinal degenerative diseases, such as retinitis pigmentosa (RP), the characteristic photoreceptor cell death is associated with changes of microglia and macroglia cells. Gene therapy, a promising treatment option for RP, is based on the premise that glial cell remodeling does not impact vision rescue. However, the dynamics of glial cells after treatment at late disease stages are not well understood. Here, we tested the reversibility of specific RP glia phenotypes in a Pde6b-deficient RP gene therapy mouse model. We demonstrated an increased number of activated microglia, retraction of microglial processes, reactive gliosis of Müller cells, astrocyte remodelling and an upregulation of glial fibrillary acidic protein (GFAP) in response to photoreceptor degeneration. Importantly, these changes returned to normal following rod rescue at late disease stages. These results suggest that therapeutic approaches restore the homeostasis between photoreceptors and glial cells.
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Affiliation(s)
- Nundehui Díaz-Lezama
- Department of Pharmacy, Center for Drug Research, Ludwig-Maximilians-Universität München, 81377 Munich, Germany
| | - Jacqueline Kajtna
- Department of Pharmacy, Center for Drug Research, Ludwig-Maximilians-Universität München, 81377 Munich, Germany
| | - Jiou Wu
- Department of Pharmacy, Center for Drug Research, Ludwig-Maximilians-Universität München, 81377 Munich, Germany
| | - Monika Ayten
- Department of Pharmacy, Center for Drug Research, Ludwig-Maximilians-Universität München, 81377 Munich, Germany
| | - Susanne F Koch
- Department of Pharmacy, Center for Drug Research, Ludwig-Maximilians-Universität München, 81377 Munich, Germany.
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26
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Murphy K, Lufkin T, Kraus P. Development and Degeneration of the Intervertebral Disc-Insights from Across Species. Vet Sci 2023; 10:540. [PMID: 37756062 PMCID: PMC10534844 DOI: 10.3390/vetsci10090540] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 08/13/2023] [Accepted: 08/16/2023] [Indexed: 09/28/2023] Open
Abstract
Back pain caused by intervertebral disc (IVD) degeneration has a major socio-economic impact in humans, yet historically has received minimal attention in species other than humans, mice and dogs. However, a general growing interest in this unique organ prompted the expansion of IVD research in rats, rabbits, cats, horses, monkeys, and cows, further illuminating the complex nature of the organ in both healthy and degenerative states. Application of recent biotechnological advancements, including single cell RNA sequencing and complex data analysis methods has begun to explain the shifting inflammatory signaling, variation in cellular subpopulations, differential gene expression, mechanical loading, and metabolic stresses which contribute to age and stress related degeneration of the IVD. This increase in IVD research across species introduces a need for chronicling IVD advancements and tissue biomarkers both within and between species. Here we provide a comprehensive review of recent single cell RNA sequencing data alongside existing case reports and histo/morphological data to highlight the cellular complexity and metabolic challenges of this unique organ that is of structural importance for all vertebrates.
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Affiliation(s)
| | - Thomas Lufkin
- Department of Biology, Clarkson University, Potsdam, NY 13699, USA;
| | - Petra Kraus
- Department of Biology, Clarkson University, Potsdam, NY 13699, USA;
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27
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褚 芳, 赵 岩, 赵 玉, 白 晨, 肖 培, 王 晓, 于 树, 蒋 吉. [Protective effect of melatonin against oxygen-induced retinopathy: a study based on the HMGB1/NF-κB/NLRP3 axis]. ZHONGGUO DANG DAI ER KE ZA ZHI = CHINESE JOURNAL OF CONTEMPORARY PEDIATRICS 2023; 25:645-652. [PMID: 37382136 PMCID: PMC10321422 DOI: 10.7499/j.issn.1008-8830.2301036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 05/08/2023] [Indexed: 06/30/2023]
Abstract
OBJECTIVES To study the protective effect of melatonin (Mel) against oxygen-induced retinopathy (OIR) in neonatal mice and the role of the HMGB1/NF-κB/NLRP3 axis. METHODS Neonatal C57BL/6J mice, aged 7 days, were randomly divided into a control group, a model group (OIR group), and a Mel treatment group (OIR+Mel group), with 9 mice in each group. The hyperoxia induction method was used to establish a model of OIR. Hematoxylin and eosin staining and retinal flat-mount preparation were used to observe retinal structure and neovascularization. Immunofluorescent staining was used to measure the expression of proteins and inflammatory factors associated with the HMGB1/NF-κB/NLRP3 axis and lymphocyte antigen 6G. Colorimetry was used to measure the activity of myeloperoxidase. RESULTS The OIR group had destruction of retinal structure with a large perfusion-free area and neovascularization, while the OIR+Mel group had improvement in destruction of retinal structure with reductions in neovascularization and perfusion-free area. Compared with the control group, the OIR group had significant increases in the expression of proteins and inflammatory factors associated with the HMGB1/NF-κB/NLRP3 axis, the expression of lymphocyte antigen 6G, and the activity of myeloperoxidase (P<0.05). Compared with the OIR group, the OIR+Mel group had significant reductions in the above indices (P<0.05). Compared with the control group, the OIR group had significant reductions in the expression of melatonin receptors in the retina (P<0.05). Compared with the OIR group, the OIR+Mel group had significant increases in the expression of melatonin receptors (P<0.05). CONCLUSIONS Mel can alleviate OIR-induced retinal damage in neonatal mice by inhibiting the HMGB1/NF-κB/NLRP3 axis and may exert an effect through the melatonin receptor pathway.
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Affiliation(s)
| | - 岩松 赵
- 潍坊医学院附属医院眼科中心, 山东潍坊261031
| | - 玉泽 赵
- 潍坊医学院附属医院眼科中心, 山东潍坊261031
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28
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Oseni SO, Naar C, Pavlović M, Asghar W, Hartmann JX, Fields GB, Esiobu N, Kumi-Diaka J. The Molecular Basis and Clinical Consequences of Chronic Inflammation in Prostatic Diseases: Prostatitis, Benign Prostatic Hyperplasia, and Prostate Cancer. Cancers (Basel) 2023; 15:3110. [PMID: 37370720 DOI: 10.3390/cancers15123110] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 05/23/2023] [Accepted: 05/31/2023] [Indexed: 06/29/2023] Open
Abstract
Chronic inflammation is now recognized as one of the major risk factors and molecular hallmarks of chronic prostatitis, benign prostatic hyperplasia (BPH), and prostate tumorigenesis. However, the molecular mechanisms by which chronic inflammation signaling contributes to the pathogenesis of these prostate diseases are poorly understood. Previous efforts to therapeutically target the upstream (e.g., TLRs and IL1-Rs) and downstream (e.g., NF-κB subunits and cytokines) inflammatory signaling molecules in people with these conditions have been clinically ambiguous and unsatisfactory, hence fostering the recent paradigm shift towards unraveling and understanding the functional roles and clinical significance of the novel and relatively underexplored inflammatory molecules and pathways that could become potential therapeutic targets in managing prostatic diseases. In this review article, we exclusively discuss the causal and molecular drivers of prostatitis, BPH, and prostate tumorigenesis, as well as the potential impacts of microbiome dysbiosis and chronic inflammation in promoting prostate pathologies. We specifically focus on the importance of some of the underexplored druggable inflammatory molecules, by discussing how their aberrant signaling could promote prostate cancer (PCa) stemness, neuroendocrine differentiation, castration resistance, metabolic reprogramming, and immunosuppression. The potential contribution of the IL1R-TLR-IRAK-NF-κBs signaling molecules and NLR/inflammasomes in prostate pathologies, as well as the prospective benefits of selectively targeting the midstream molecules in the various inflammatory cascades, are also discussed. Though this review concentrates more on PCa, we envision that the information could be applied to other prostate diseases. In conclusion, we have underlined the molecular mechanisms and signaling pathways that may need to be targeted and/or further investigated to better understand the association between chronic inflammation and prostate diseases.
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Affiliation(s)
- Saheed Oluwasina Oseni
- Department of Biological Sciences, Florida Atlantic University, Boca Raton, FL 33431, USA
- H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL 33612, USA
| | - Corey Naar
- Department of Biological Sciences, Florida Atlantic University, Boca Raton, FL 33431, USA
| | - Mirjana Pavlović
- Department of Computer and Electrical Engineering, Florida Atlantic University, Boca Raton, FL 33431, USA
| | - Waseem Asghar
- Department of Computer and Electrical Engineering, Florida Atlantic University, Boca Raton, FL 33431, USA
| | - James X Hartmann
- Department of Biological Sciences, Florida Atlantic University, Boca Raton, FL 33431, USA
| | - Gregg B Fields
- Department of Chemistry & Biochemistry, and I-HEALTH, Florida Atlantic University, Boca Raton, FL 33431, USA
| | - Nwadiuto Esiobu
- Department of Biological Sciences, Florida Atlantic University, Boca Raton, FL 33431, USA
| | - James Kumi-Diaka
- Department of Biological Sciences, Florida Atlantic University, Boca Raton, FL 33431, USA
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29
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Yu R, Ma C, Li G, Xu J, Feng D, Lan X. Inhibition of Toll-Like Receptor 4 Signaling Pathway Accelerates the Repair of Avascular Necrosis of Femoral Epiphysis through Regulating Macrophage Polarization in Perthes Disease. Tissue Eng Regen Med 2023; 20:489-501. [PMID: 37041432 PMCID: PMC10219917 DOI: 10.1007/s13770-023-00529-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/18/2023] [Accepted: 02/13/2023] [Indexed: 04/13/2023] Open
Abstract
BACKGROUND Legg-Calvé-Perthes disease (LCPD) is still a refractory disease in children's orthopedics. With the introduction of the concept of "osteoimmunology", the immune-inflammatory mechanisms between bone and immune system have become a research focus of LCPD. However, few studies have reported on the pathological role of inflammation-related receptors such as toll-like receptors (TLRs) as well as immune cells such as macrophages in LCPD. This study was for investigating the mechanism of TLR4 signaling pathway on the direction of macrophage polarization and the repair of avascular necrosis of femoral epiphysis in LCPD. METHODS With GSE57614 and GSE74089, differentially expressed genes were screened. Through enrichment analysis and protein-protein interaction network, the functions of TLR4 were explored. Furthermore, immunohistochemistry, enzyme-linked immunosorbent assay (ELISA), hematoxylin & eosin (H&E) staining, micro-CT, tartrate-resistant acid phosphatase (TRAP) dyeing and western blotting were performed for determining the influences of TAK-242 (a TLR4 inhibitor) on the repair of avascular necrosis of femoral epiphysis in rat models. RESULTS Totally 40 co-expression genes were screened as well as enriched in TLR4 signaling pathway. Immunohistochemistry and ELISA analyses certified that TLR4 facilitated macrophage polarization toward the M1 phenotype and prevented macrophage polarization toward the M2 phenotype. Besides, the results of H&E and TRAP staining, micro-CT, and western blotting showed that TAK-242 can inhibit osteoclastogenesis and promote osteogenesis. CONCLUSION Inhibition of TLR4 signaling pathway accelerated the repair of avascular necrosis of femoral epiphysis by regulating macrophage polarization in LCPD.
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Affiliation(s)
- Ronghui Yu
- Department of Orthopedics, First Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China
| | - Cong Ma
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Guoyong Li
- Department of Orthopedics, First Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China
| | - Jianyun Xu
- Department of Orthopedics, First Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China
| | - Dan Feng
- Department of General Surgery, Jiangxi Provincial Children's Hospital, Nanchang, 330046, Jiangxi, China
| | - Xia Lan
- Department of Orthopedics, First Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China.
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30
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Liu Z, Liang Q, Ren Y, Guo C, Ge X, Wang L, Cheng Q, Luo P, Zhang Y, Han X. Immunosenescence: molecular mechanisms and diseases. Signal Transduct Target Ther 2023; 8:200. [PMID: 37179335 PMCID: PMC10182360 DOI: 10.1038/s41392-023-01451-2] [Citation(s) in RCA: 85] [Impact Index Per Article: 85.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 03/24/2023] [Accepted: 04/23/2023] [Indexed: 05/15/2023] Open
Abstract
Infection susceptibility, poor vaccination efficacy, age-related disease onset, and neoplasms are linked to innate and adaptive immune dysfunction that accompanies aging (known as immunosenescence). During aging, organisms tend to develop a characteristic inflammatory state that expresses high levels of pro-inflammatory markers, termed inflammaging. This chronic inflammation is a typical phenomenon linked to immunosenescence and it is considered the major risk factor for age-related diseases. Thymic involution, naïve/memory cell ratio imbalance, dysregulated metabolism, and epigenetic alterations are striking features of immunosenescence. Disturbed T-cell pools and chronic antigen stimulation mediate premature senescence of immune cells, and senescent immune cells develop a proinflammatory senescence-associated secretory phenotype that exacerbates inflammaging. Although the underlying molecular mechanisms remain to be addressed, it is well documented that senescent T cells and inflammaging might be major driving forces in immunosenescence. Potential counteractive measures will be discussed, including intervention of cellular senescence and metabolic-epigenetic axes to mitigate immunosenescence. In recent years, immunosenescence has attracted increasing attention for its role in tumor development. As a result of the limited participation of elderly patients, the impact of immunosenescence on cancer immunotherapy is unclear. Despite some surprising results from clinical trials and drugs, it is necessary to investigate the role of immunosenescence in cancer and other age-related diseases.
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Affiliation(s)
- Zaoqu Liu
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, 450052, Zhengzhou, Henan, China
- Interventional Institute of Zhengzhou University, 450052, Zhengzhou, Henan, China
- Interventional Treatment and Clinical Research Center of Henan Province, 450052, Zhengzhou, Henan, China
| | - Qimeng Liang
- Nephrology Hospital, the First Affiliated Hospital of Zhengzhou University, Zhengzhou University, 4500052, Henan, China
| | - Yuqing Ren
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, 450052, Zhengzhou, Henan, China
| | - Chunguang Guo
- Department of Endovascular Surgery, The First Affiliated Hospital of Zhengzhou University, 450052, Zhengzhou, Henan, China
| | - Xiaoyong Ge
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, 450052, Zhengzhou, Henan, China
| | - Libo Wang
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, 450052, Zhengzhou, Henan, China
| | - Quan Cheng
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
| | - Peng Luo
- Department of Oncology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Yi Zhang
- Biotherapy Center and Cancer Center, The First Affiliated Hospital of Zhengzhou University, 450052, Zhengzhou, China.
| | - Xinwei Han
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, 450052, Zhengzhou, Henan, China.
- Interventional Institute of Zhengzhou University, 450052, Zhengzhou, Henan, China.
- Interventional Treatment and Clinical Research Center of Henan Province, 450052, Zhengzhou, Henan, China.
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31
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Ji Y, Sun L, Liu Y, Li Y, Li T, Gong J, Liu X, Ma H, Wang J, Chen B, Fung SY, Yang H. Dual Functioned Hexapeptide-Coated Lipid-Core Nanomicelles Suppress Toll-Like Receptor-Mediated Inflammatory Responses through Endotoxin Scavenging and Endosomal pH Modulation. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023:e2301230. [PMID: 37078808 DOI: 10.1002/advs.202301230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 03/16/2023] [Indexed: 05/03/2023]
Abstract
Excessive activation of Toll-like receptor (TLR) signaling pathways and the circulating endotoxin are key players in the pathogenesis of many acute and chronic inflammatory diseases. Regulation of TLR-mediated inflammatory responses by bioactive nanodevices represents a promising strategy for treating these diseases. In searching for novel, clinically applicable nanodevices with potent TLR inhibitory activities, three types of hexapeptide-modified nano-hybrids with different cores of phospholipid nanomicelles, liposomes, and poly(lactic-co-glycolic acid) nanoparticles are constructed. Interestingly, only the peptide-modified lipid-core nanomicelles (M-P12) display potent TLR inhibitory activities. Further mechanistic studies disclose that lipid-core nanomicelles have a generic property to bind to and scavenge lipophilic TLR ligands including lipopolysaccharide to block the ligand-receptor interaction and down-regulate the TLR signaling extracellularly. In addition, the peptide modification enables M-P12 a unique capability to modulate endosomal acidification upon being endocytosed into macrophages, which subsequently regulates the endosomal TLR signal transduction. In an acute lung injury mouse model, intratracheal administration of M-P12 can effectively target lung macrophages and reduce lung inflammation and injuries. This work defines a dual mechanism of action of the peptide-modified lipid-core nanomicelles in regulating TLR signaling, and provides new strategies for the development of therapeutic nanodevices for treating inflammatory diseases.
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Affiliation(s)
- Yuting Ji
- The Province and Ministry Co-Sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Pharmacology, School of Basic Medical Sciences, Intensive Care Unit of the Second Hospital, Tianjin Medical University, No. 22 Qixiangtai Road, Heping district, Tianjin, 300070, China
| | - Liya Sun
- The Province and Ministry Co-Sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Pharmacology, School of Basic Medical Sciences, Intensive Care Unit of the Second Hospital, Tianjin Medical University, No. 22 Qixiangtai Road, Heping district, Tianjin, 300070, China
| | - Yuan Liu
- The Province and Ministry Co-Sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Pharmacology, School of Basic Medical Sciences, Intensive Care Unit of the Second Hospital, Tianjin Medical University, No. 22 Qixiangtai Road, Heping district, Tianjin, 300070, China
| | - Yanhui Li
- The Province and Ministry Co-Sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Pharmacology, School of Basic Medical Sciences, Intensive Care Unit of the Second Hospital, Tianjin Medical University, No. 22 Qixiangtai Road, Heping district, Tianjin, 300070, China
| | - Tongxuan Li
- Department of Immunology and Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), School of Basic Medical Sciences, Tianjin Medical University, No. 22 Qixiangtai Road, Heping district, Tianjin, 300070, China
| | - Jiameng Gong
- The Province and Ministry Co-Sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Pharmacology, School of Basic Medical Sciences, Intensive Care Unit of the Second Hospital, Tianjin Medical University, No. 22 Qixiangtai Road, Heping district, Tianjin, 300070, China
| | - Xiali Liu
- Department of Pulmonary and Critical Care Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, No. 650 Xinsongjiang Road, Shanghai, 201620, China
| | - Huiqiang Ma
- The Province and Ministry Co-Sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Pharmacology, School of Basic Medical Sciences, Intensive Care Unit of the Second Hospital, Tianjin Medical University, No. 22 Qixiangtai Road, Heping district, Tianjin, 300070, China
| | - Jingying Wang
- Intensive Care Unit of the Second Hospital, Tianjin Medical University, No. 22 Qixiangtai Road, Heping district, Tianjin, 300070, China
| | - Bing Chen
- Intensive Care Unit of the Second Hospital, Tianjin Medical University, No. 22 Qixiangtai Road, Heping district, Tianjin, 300070, China
| | - Shan-Yu Fung
- Department of Immunology and Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), School of Basic Medical Sciences, Tianjin Medical University, No. 22 Qixiangtai Road, Heping district, Tianjin, 300070, China
| | - Hong Yang
- The Province and Ministry Co-Sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Pharmacology, School of Basic Medical Sciences, Intensive Care Unit of the Second Hospital, Tianjin Medical University, No. 22 Qixiangtai Road, Heping district, Tianjin, 300070, China
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Bleve A, Motta F, Durante B, Pandolfo C, Selmi C, Sica A. Immunosenescence, Inflammaging, and Frailty: Role of Myeloid Cells in Age-Related Diseases. Clin Rev Allergy Immunol 2023; 64:123-144. [PMID: 35031957 PMCID: PMC8760106 DOI: 10.1007/s12016-021-08909-7] [Citation(s) in RCA: 42] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/22/2021] [Indexed: 12/20/2022]
Abstract
The immune system is the central regulator of tissue homeostasis, ensuring tissue regeneration and protection against both pathogens and the neoformation of cancer cells. Its proper functioning requires homeostatic properties, which are maintained by an adequate balance of myeloid and lymphoid responses. Aging progressively undermines this ability and compromises the correct activation of immune responses, as well as the resolution of the inflammatory response. A subclinical syndrome of "homeostatic frailty" appears as a distinctive trait of the elderly, which predisposes to immune debilitation and chronic low-grade inflammation (inflammaging), causing the uncontrolled development of chronic and degenerative diseases. The innate immune compartment, in particular, undergoes to a sequela of age-dependent functional alterations, encompassing steps of myeloid progenitor differentiation and altered responses to endogenous and exogenous threats. Here, we will review the age-dependent evolution of myeloid populations, as well as their impact on frailty and diseases of the elderly.
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Affiliation(s)
- Augusto Bleve
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale "Amedeo Avogadro", Largo Donegani, via Bovio 6, 2 - 28100, Novara, Italy
| | - Francesca Motta
- Division of Rheumatology and Clinical Immunology, Humanitas Clinical and Research Center- IRCCS, via Manzoni 56, Rozzano, Milan, Italy
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20072, Pieve Emanuele, Milan, Italy
| | - Barbara Durante
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale "Amedeo Avogadro", Largo Donegani, via Bovio 6, 2 - 28100, Novara, Italy
| | - Chiara Pandolfo
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale "Amedeo Avogadro", Largo Donegani, via Bovio 6, 2 - 28100, Novara, Italy
| | - Carlo Selmi
- Division of Rheumatology and Clinical Immunology, Humanitas Clinical and Research Center- IRCCS, via Manzoni 56, Rozzano, Milan, Italy.
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20072, Pieve Emanuele, Milan, Italy.
| | - Antonio Sica
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale "Amedeo Avogadro", Largo Donegani, via Bovio 6, 2 - 28100, Novara, Italy.
- Humanitas Clinical and Research Center - IRCCS, via Manzoni 56, 20089, Rozzano, Milan, Italy.
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Ji S, Xiong M, Chen H, Liu Y, Zhou L, Hong Y, Wang M, Wang C, Fu X, Sun X. Cellular rejuvenation: molecular mechanisms and potential therapeutic interventions for diseases. Signal Transduct Target Ther 2023; 8:116. [PMID: 36918530 PMCID: PMC10015098 DOI: 10.1038/s41392-023-01343-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 12/16/2022] [Accepted: 01/19/2023] [Indexed: 03/16/2023] Open
Abstract
The ageing process is a systemic decline from cellular dysfunction to organ degeneration, with more predisposition to deteriorated disorders. Rejuvenation refers to giving aged cells or organisms more youthful characteristics through various techniques, such as cellular reprogramming and epigenetic regulation. The great leaps in cellular rejuvenation prove that ageing is not a one-way street, and many rejuvenative interventions have emerged to delay and even reverse the ageing process. Defining the mechanism by which roadblocks and signaling inputs influence complex ageing programs is essential for understanding and developing rejuvenative strategies. Here, we discuss the intrinsic and extrinsic factors that counteract cell rejuvenation, and the targeted cells and core mechanisms involved in this process. Then, we critically summarize the latest advances in state-of-art strategies of cellular rejuvenation. Various rejuvenation methods also provide insights for treating specific ageing-related diseases, including cellular reprogramming, the removal of senescence cells (SCs) and suppression of senescence-associated secretory phenotype (SASP), metabolic manipulation, stem cells-associated therapy, dietary restriction, immune rejuvenation and heterochronic transplantation, etc. The potential applications of rejuvenation therapy also extend to cancer treatment. Finally, we analyze in detail the therapeutic opportunities and challenges of rejuvenation technology. Deciphering rejuvenation interventions will provide further insights into anti-ageing and ageing-related disease treatment in clinical settings.
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Affiliation(s)
- Shuaifei Ji
- Research Center for Tissue Repair and Regeneration Affiliated to Medical Innovation Research Department and 4th Medical Center, PLA General Hospital and PLA Medical College; PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, P. R. China
| | - Mingchen Xiong
- Research Center for Tissue Repair and Regeneration Affiliated to Medical Innovation Research Department and 4th Medical Center, PLA General Hospital and PLA Medical College; PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, P. R. China
| | - Huating Chen
- Research Center for Tissue Repair and Regeneration Affiliated to Medical Innovation Research Department and 4th Medical Center, PLA General Hospital and PLA Medical College; PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, P. R. China
| | - Yiqiong Liu
- Research Center for Tissue Repair and Regeneration Affiliated to Medical Innovation Research Department and 4th Medical Center, PLA General Hospital and PLA Medical College; PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, P. R. China
| | - Laixian Zhou
- Research Center for Tissue Repair and Regeneration Affiliated to Medical Innovation Research Department and 4th Medical Center, PLA General Hospital and PLA Medical College; PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, P. R. China
| | - Yiyue Hong
- Research Center for Tissue Repair and Regeneration Affiliated to Medical Innovation Research Department and 4th Medical Center, PLA General Hospital and PLA Medical College; PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, P. R. China
| | - Mengyang Wang
- Research Center for Tissue Repair and Regeneration Affiliated to Medical Innovation Research Department and 4th Medical Center, PLA General Hospital and PLA Medical College; PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, P. R. China
| | - Chunming Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, 999078, Macau SAR, China.
| | - Xiaobing Fu
- Research Center for Tissue Repair and Regeneration Affiliated to Medical Innovation Research Department and 4th Medical Center, PLA General Hospital and PLA Medical College; PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, P. R. China.
| | - Xiaoyan Sun
- Research Center for Tissue Repair and Regeneration Affiliated to Medical Innovation Research Department and 4th Medical Center, PLA General Hospital and PLA Medical College; PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, P. R. China.
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Capri M, Conte M, Ciurca E, Pirazzini C, Garagnani P, Santoro A, Longo F, Salvioli S, Lau P, Moeller R, Jordan J, Illig T, Villanueva MM, Gruber M, Bürkle A, Franceschi C, Rittweger J. Long-term human spaceflight and inflammaging: Does it promote aging? Ageing Res Rev 2023; 87:101909. [PMID: 36918115 DOI: 10.1016/j.arr.2023.101909] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 03/07/2023] [Accepted: 03/08/2023] [Indexed: 03/14/2023]
Abstract
Spaceflight and its associated stressors, such as microgravity, radiation exposure, confinement, circadian derailment and disruptive workloads represent an unprecedented type of exposome that is entirely novel from an evolutionary stand point. Within this perspective, we aimed to review the effects of prolonged spaceflight on immune-neuroendocrine systems, brain and brain-gut axis, cardiovascular system and musculoskeletal apparatus, highlighting in particular the similarities with an accelerated aging process. In particular, spaceflight-induced muscle atrophy/sarcopenia and bone loss, vascular and metabolic changes, hyper and hypo reaction of innate and adaptive immune system appear to be modifications shared with the aging process. Most of these modifications are mediated by molecular events that include oxidative and mitochondrial stress, autophagy, DNA damage repair and telomere length alteration, among others, which directly or indirectly converge on the activation of an inflammatory response. According to the inflammaging theory of aging, such an inflammatory response could be a driver of an acceleration of the normal, physiological rate of aging and it is likely that all the systemic modifications in turn lead to an increase of inflammaging in a sort of vicious cycle. The most updated countermeasures to fight these modifications will be also discussed in the light of their possible application not only for astronauts' benefit, but also for older adults on the ground.
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Affiliation(s)
- Miriam Capri
- Department of Medical and Surgical Science, University of Bologna, Bologna, Italy; Alma Mater Research Institute on Global Challenges and Climate Change (Alma Climate), University of Bologna, Bologna, Italy
| | - Maria Conte
- Department of Medical and Surgical Science, University of Bologna, Bologna, Italy; Alma Mater Research Institute on Global Challenges and Climate Change (Alma Climate), University of Bologna, Bologna, Italy.
| | - Erika Ciurca
- Department of Medical and Surgical Science, University of Bologna, Bologna, Italy
| | - Chiara Pirazzini
- Department of Medical and Surgical Science, University of Bologna, Bologna, Italy
| | - Paolo Garagnani
- Department of Medical and Surgical Science, University of Bologna, Bologna, Italy; Alma Mater Research Institute on Global Challenges and Climate Change (Alma Climate), University of Bologna, Bologna, Italy; Clinical Chemistry Department of Laboratory Medicine, Karolinska Institutet at Huddinge University Hospital, Stockholm, Sweden; CNR Institute of Molecular Genetics, Unit of Bologna, Bologna, Italy; Center for Applied Biomedical Research (CRBA), St. Orsola-Malpighi University Hospital, Bologna, Italy
| | - Aurelia Santoro
- Department of Medical and Surgical Science, University of Bologna, Bologna, Italy; Alma Mater Research Institute on Global Challenges and Climate Change (Alma Climate), University of Bologna, Bologna, Italy
| | - Federica Longo
- Department of Medical and Surgical Science, University of Bologna, Bologna, Italy
| | - Stefano Salvioli
- Department of Medical and Surgical Science, University of Bologna, Bologna, Italy; IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Patrick Lau
- Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany
| | - Ralf Moeller
- Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany
| | - Jens Jordan
- Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany; Medical Faculty, University of Cologne, Cologne, Germany
| | - Thomas Illig
- Department of Human Genetics, Hannover Medical School, Hannover, Germany
| | - Maria-Moreno Villanueva
- Human Performance Research Centre, Department of Sport Science, University of Konstanz, Konstanz, Germany
| | - Markus Gruber
- Human Performance Research Centre, Department of Sport Science, University of Konstanz, Konstanz, Germany
| | - Alexander Bürkle
- Department of Biology, University of Konstanz, Konstanz, Germany
| | - Claudio Franceschi
- Department of Applied Mathematics of the Institute of ITMM, National Research Lobachevsky State University of Nizhny Novgorod, the Russian Federation
| | - Jörn Rittweger
- Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany; Department of Pediatrics and Adolescent Medicine, University of Cologne, Cologne, Germany
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Klück V, Cabău G, Mies L, Bukkems F, van Emst L, Bakker R, van Caam A, Crişan TO, Joosten LAB. TGF-β is elevated in hyperuricemic individuals and mediates urate-induced hyperinflammatory phenotype in human mononuclear cells. Arthritis Res Ther 2023; 25:30. [PMID: 36850003 PMCID: PMC9969669 DOI: 10.1186/s13075-023-03001-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 01/29/2023] [Indexed: 03/01/2023] Open
Abstract
BACKGROUND Soluble urate leads to a pro-inflammatory phenotype in human monocytes characterized by increased production of IL-1β and downregulation of IL-1 receptor antagonist, the mechanism of which remains to be fully elucidated. Previous transcriptomic data identified differential expression of genes in the transforming growth factor (TGF)-β pathway in monocytes exposed to urate in vitro. In this study, we explore the role of TGF-β in urate-induced hyperinflammation in peripheral blood mononuclear cells (PBMCs). METHODS TGF-β mRNA in unstimulated PBMCs and protein levels in plasma were measured in individuals with normouricemia, hyperuricemia and gout. For in vitro validation, PBMCs of healthy volunteers were isolated and treated with a dose ranging concentration of urate for assessment of mRNA and pSMAD2. Urate and TGF-β priming experiments were performed with three inhibitors of TGF-β signalling: SB-505124, 5Z-7-oxozeaenol and a blocking antibody against TGF-β receptor II. RESULTS TGF-β mRNA levels were elevated in gout patients compared to healthy controls. TGF-β-LAP levels in serum were significantly higher in individuals with hyperuricemia compared to controls. In both cases, TGF-β correlated positively to serum urate levels. In vitro, urate exposure of PBMCs did not directly induce TGF-β but did enhance SMAD2 phosphorylation. The urate-induced pro-inflammatory phenotype of monocytes was partly reversed by blocking TGF-β. CONCLUSIONS TGF-β is elevated in individuals with hyperuricemia and correlated to serum urate concentrations. In addition, the urate-induced pro-inflammatory phenotype in human monocytes is mediated by TGF-β signalling. Future studies are warranted to explore the intracellular pathways involved and to assess the clinical significance of urate-TGF-β relation.
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Affiliation(s)
- Viola Klück
- Department of Internal Medicine, Radboud UMC, Nijmegen, The Netherlands.,Radboud Institute for Molecular Life Sciences (RIMLS), Nijmegen, The Netherlands
| | - Georgiana Cabău
- Department of Medical Genetics, "Iuliu Haţieganu" University of Medicine and Pharmacy, Cluj Napoca, Romania
| | - Linda Mies
- Department of Internal Medicine, Radboud UMC, Nijmegen, The Netherlands
| | - Femke Bukkems
- Departement of Rheumatology, Radboud UMC, Nijmegen, The Netherlands
| | - Liesbeth van Emst
- Department of Internal Medicine, Radboud UMC, Nijmegen, The Netherlands
| | - René Bakker
- Departement of Rheumatology, Radboud UMC, Nijmegen, The Netherlands
| | - Arjan van Caam
- Departement of Rheumatology, Radboud UMC, Nijmegen, The Netherlands
| | | | - Tania O Crişan
- Department of Medical Genetics, "Iuliu Haţieganu" University of Medicine and Pharmacy, Cluj Napoca, Romania
| | - Leo A B Joosten
- Department of Internal Medicine, Radboud UMC, Nijmegen, The Netherlands. .,Radboud Institute for Molecular Life Sciences (RIMLS), Nijmegen, The Netherlands. .,Department of Medical Genetics, "Iuliu Haţieganu" University of Medicine and Pharmacy, Cluj Napoca, Romania.
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Elbasiony E, Cho WJ, Singh A, Mittal SK, Zoukhri D, Chauhan SK. Increased activity of lacrimal gland mast cells are associated with corneal epitheliopathy in aged mice. NPJ AGING 2023; 9:2. [PMID: 36849524 PMCID: PMC9971332 DOI: 10.1038/s41514-023-00099-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 02/13/2023] [Indexed: 03/01/2023]
Abstract
The lacrimal gland undergoes significant structural and functional deterioration with aging. Marked with increased inflammation and fibrosis, the aged lacrimal gland is unable to perform its protective function. As a result, the ocular surface becomes highly susceptible to various ocular surface pathologies, including corneal epitheliopathy. We and others have previously shown that mast cells mediate tissue inflammation by recruiting other immune cells. However, despite their well-known characteristics of secreting various inflammatory mediators, whether mast cells contribute to the immune cell aggregation and activation, and acinar dystrophy of the aged lacrimal gland has not been investigated. Here, we demonstrate the role of mast cells in age-related lacrimal gland pathophysiology using mast cell-deficient (cKitw-sh) mice. Our data demonstrated a significant increase in mast cell frequencies and immune cell infiltration in the lacrimal gland of aged mice. Interestingly, mast cell deficiency resulted in a substantial reduction in inflammation and preservation of lacrimal gland structure, suggesting that mast cells mediate the aging process of the lacrimal gland.
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Affiliation(s)
- Elsayed Elbasiony
- Schepens Eye Research Institute of Mass Eye and Ear, Harvard Medical School, Boston, MA, USA
| | - WonKyung J Cho
- Schepens Eye Research Institute of Mass Eye and Ear, Harvard Medical School, Boston, MA, USA
| | - Aastha Singh
- Schepens Eye Research Institute of Mass Eye and Ear, Harvard Medical School, Boston, MA, USA
| | - Sharad K Mittal
- Schepens Eye Research Institute of Mass Eye and Ear, Harvard Medical School, Boston, MA, USA
| | - Driss Zoukhri
- Department of Ophthalmology, Tufts University School of Medicine, Boston, MA, USA
- Department of Comprehensive Care, Tufts University School of Dental Medicine, Boston, MA, USA
| | - Sunil K Chauhan
- Schepens Eye Research Institute of Mass Eye and Ear, Harvard Medical School, Boston, MA, USA.
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Wang A, Li Z, Sun Z, Wang Y, Fu S, Zhang D, Ma X. Heart failure with preserved ejection fraction and non-alcoholic fatty liver disease: new insights from bioinformatics. ESC Heart Fail 2023; 10:416-431. [PMID: 36266995 PMCID: PMC9871724 DOI: 10.1002/ehf2.14211] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 09/17/2022] [Accepted: 10/02/2022] [Indexed: 01/29/2023] Open
Abstract
AIMS Heart failure with preserved ejection fraction (HFpEF) and non-alcoholic fatty liver disease (NAFLD) are related conditions with an increasing incidence. The mechanism of their relationship remains undefined. Here, we aimed to explore the potential mechanisms, diagnostic markers, and therapeutic options for HFpEF and NAFLD. METHODS AND RESULTS HFpEF and NAFLD datasets were downloaded from the Gene Expression Omnibus (GEO) database. Common differentially expressed genes (DEGs) were screened for functional annotation. A protein-protein interaction network was constructed based on the STRING database, and hub genes were analysed using GeneMANIA annotation. ImmuCellAI (Immune Cell Abundance Identifier) was employed for analysis of immune infiltration. We also used validation datasets to validate the expression levels of hub genes and the correlation of immune cells. To screen for diagnostic biomarkers, we employed the least absolute shrinkage and selection operator and support vector machine-recursive feature elimination. Drug signature database was used to predict potential therapeutic drugs. Our analyses identified a total of 33 DEGs. Inflammation and immune infiltration played important roles in the development of both diseases. The data showed a close relationship between chemokine signalling pathway, cytokine-cytokine receptor interaction, calcium signalling pathway, neuroactive ligand-receptor interaction, osteoclast differentiation, and cyclic guanosine monophosphate-protein kinase G signalling pathway. We demonstrated that PRF1 (perforin 1) and IL2RB (interleukin-2 receptor subunit beta) proteins were perturbed by the diseases and may be the hub genes. The analysis showed that miR-375 may be a potential diagnostic marker for both diseases. Our drug prediction analysis showed that bosentan, eldecalcitol, ramipril, and probucol could be potential therapeutic options for the diseases. CONCLUSIONS Our findings revealed common pathogenesis, diagnostic markers, and therapeutic agents for HFpEF and NAFLD. There is need for further experimental studies to validate our findings.
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Affiliation(s)
- Anzhu Wang
- Xiyuan HospitalChina Academy of Chinese Medical SciencesBeijingChina
- Graduate SchoolChina Academy of Chinese Medical SciencesBeijingChina
| | - Zhendong Li
- Qingdao West Coast New Area People's HospitalQingdaoChina
| | - Zhuo Sun
- Qingdao West Coast New Area People's HospitalQingdaoChina
| | - Yifei Wang
- Xiyuan HospitalChina Academy of Chinese Medical SciencesBeijingChina
- Beijing University of Chinese MedicineBeijingChina
| | - Shuangqing Fu
- Xiyuan HospitalChina Academy of Chinese Medical SciencesBeijingChina
- Beijing University of Chinese MedicineBeijingChina
| | - Dawu Zhang
- Xiyuan HospitalChina Academy of Chinese Medical SciencesBeijingChina
- National Clinical Research Center for Chinese Medicine CardiologyBeijingChina
| | - Xiaochang Ma
- Xiyuan HospitalChina Academy of Chinese Medical SciencesBeijingChina
- National Clinical Research Center for Chinese Medicine CardiologyBeijingChina
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Konstorum A, Mohanty S, Zhao Y, Melillo A, Vander Wyk B, Nelson A, Tsang S, Blevins TP, Belshe R, Chawla DG, Rondina MT, Gill TM, Montgomery RR, Allore HG, Kleinstein SH, Shaw AC. Platelet response to influenza vaccination reflects effects of aging. Aging Cell 2023; 22:e13749. [PMID: 36656789 PMCID: PMC9924941 DOI: 10.1111/acel.13749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 10/21/2022] [Accepted: 11/15/2022] [Indexed: 01/20/2023] Open
Abstract
Platelets are uniquely positioned as mediators of not only hemostasis but also innate immunity. However, how age and geriatric conditions such as frailty influence platelet function during an immune response remains unclear. We assessed the platelet transcriptome at baseline and following influenza vaccination in Younger (age 21-35) and Older (age ≥65) adults (including community-dwelling individuals who were largely non-frail and skilled nursing facility (SNF)-resident adults who nearly all met criteria for frailty). Prior to vaccination, we observed an age-associated increase in the expression of platelet activation and mitochondrial RNAs and decrease in RNAs encoding proteins mediating translation. Age-associated differences were also identified in post-vaccination response trajectories over 28 days. Using tensor decomposition analysis, we found increasing RNA expression of genes in platelet activation pathways in young participants, but decreasing levels in (SNF)-resident adults. Translation RNA trajectories were inversely correlated with these activation pathways. Enhanced platelet activation was found in community-dwelling older adults at the protein level, compared to young individuals both prior to and post-vaccination; whereas SNF residents showed decreased platelet activation compared to community-dwelling older adults that could reflect the influence of decreased translation RNA expression. Our results reveal alterations in the platelet transcriptome and activation responses that may contribute to age-associated chronic inflammation and the increased incidence of thrombotic and pro-inflammatory diseases in older adults.
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Affiliation(s)
- Anna Konstorum
- Department of PathologyYale School of MedicineNew HavenConnecticutUSA
| | - Subhasis Mohanty
- Department of Internal Medicine, Section of Infectious DiseasesYale School of MedicineNew HavenConnecticutUSA
| | - Yujiao Zhao
- Section of Rheumatology, Department of Internal MedicineYale School of MedicineNew HavenConnecticutUSA
| | - Anthony Melillo
- Department of PathologyYale School of MedicineNew HavenConnecticutUSA
| | - Brent Vander Wyk
- Department of Internal Medicine, Section of Geriatrics and Program on AgingYale School of MedicineNew HavenConnecticutUSA
| | - Allison Nelson
- Department of Internal Medicine, Section of Infectious DiseasesYale School of MedicineNew HavenConnecticutUSA
| | - Sui Tsang
- Department of Internal Medicine, Section of Geriatrics and Program on AgingYale School of MedicineNew HavenConnecticutUSA
| | - Tamara P. Blevins
- Division of Infectious Diseases, Department of MedicineSaint Louis University School of MedicineSt. LouisMissouriUSA
| | - Robert B. Belshe
- Division of Infectious Diseases, Department of MedicineSaint Louis University School of MedicineSt. LouisMissouriUSA
| | - Daniel G. Chawla
- Program in Computational Biology and BioinformaticsYale UniversityNew HavenConnecticutUSA
| | - Matthew T. Rondina
- Departments of Internal Medicine and Pathology, and the Molecular Medicine ProgramUniversity of Utah HealthSalt Lake CityUtahUSA
- Department of Medicine and the GRECCGeorge E. Wahlen VAMCSalt Lake CityUtahUSA
| | - Thomas M. Gill
- Department of Internal Medicine, Section of Geriatrics and Program on AgingYale School of MedicineNew HavenConnecticutUSA
| | - Ruth R. Montgomery
- Section of Rheumatology, Department of Internal MedicineYale School of MedicineNew HavenConnecticutUSA
| | - Heather G. Allore
- Department of Internal Medicine, Section of Geriatrics and Program on AgingYale School of MedicineNew HavenConnecticutUSA
| | - Steven H. Kleinstein
- Department of PathologyYale School of MedicineNew HavenConnecticutUSA
- Program in Computational Biology and BioinformaticsYale UniversityNew HavenConnecticutUSA
| | - Albert C. Shaw
- Department of Internal Medicine, Section of Infectious DiseasesYale School of MedicineNew HavenConnecticutUSA
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Byappanahalli AM, Noren Hooten N, Vannoy M, Mode NA, Ezike N, Zonderman AB, Evans MK. Mitochondrial DNA and inflammatory proteins are higher in extracellular vesicles from frail individuals. Immun Ageing 2023; 20:6. [PMID: 36710345 PMCID: PMC9885591 DOI: 10.1186/s12979-023-00330-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 01/23/2023] [Indexed: 01/31/2023]
Abstract
BACKGROUND Frailty, a clinical syndrome commencing at midlife, is a risk for morbidity and mortality. Little is known about the factors that contribute to the chronic inflammatory state associated with frailty. Extracellular vesicles (EVs) are small, membrane-bound vesicles that are released into the circulation and are mediators of intercellular communication. We examined whether mitochondrial DNA (mtDNA) and inflammatory proteins in EVs may act as damage-associated molecular pattern (DAMP) molecules in frailty. RESULTS To address whether EVs and their associated mtDNA and inflammatory protein cargo are altered with frailty, EVs were isolated from non-frail (n = 90) and frail (n = 87) middle-aged (45-55 years) participants from the Healthy Aging in Neighborhoods of Diversity across the Life Span (HANDLS) study. EV concentration was highest in frail White participants. EV mtDNA levels were significantly higher in frail individuals compared to non-frail individuals. The presence of six inflammatory proteins in EVs (FGF-21, HGF, IL-12B, PD-L1, PRDX3, and STAMBP) were significantly associated with frailty. EV inflammatory proteins were significantly altered by frailty status, race, sex, and poverty status. Notably, frail White participants had higher levels of EV-associated CD5, CD8A, CD244, CXCL1, CXCL6, CXCL11, LAP-TGF-beta-1 and MCP-4 compared to frail and non-frail African American participants. Frail White participants living below poverty had higher levels of EV-associated uPA. EV-associated CCL28 levels were highest in non-frail women and CXCL1 were highest in non-frail men. Men living below poverty had higher levels of CD5, CD8A, CXCL1, LAP-TGF-beta-1, and uPA. CXCL6 levels were significantly higher in individuals living above poverty. There was a significant correlation between EV mtDNA levels and the presence of inflammatory proteins. CONCLUSIONS These data suggest that mtDNA within EVs may act as a DAMP molecule in frailty. Its association with chemokines and other inflammatory EV cargo proteins, may contribute to the frailty phenotype. In addition, the social determinant of health, poverty, influences the inflammatory cargo of EVs in midlife.
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Affiliation(s)
- Anjali M. Byappanahalli
- grid.419475.a0000 0000 9372 4913Laboratory of Epidemiology and Population Science, National Institute on Aging, National Institutes of Health, 251 Bayview Boulevard, Suite 100, Baltimore, MD 21224 USA
| | - Nicole Noren Hooten
- grid.419475.a0000 0000 9372 4913Laboratory of Epidemiology and Population Science, National Institute on Aging, National Institutes of Health, 251 Bayview Boulevard, Suite 100, Baltimore, MD 21224 USA
| | - Mya Vannoy
- grid.419475.a0000 0000 9372 4913Laboratory of Epidemiology and Population Science, National Institute on Aging, National Institutes of Health, 251 Bayview Boulevard, Suite 100, Baltimore, MD 21224 USA ,grid.25879.310000 0004 1936 8972Present address: Perelman School of Medicine, University of Pennsylvania,3400 Civic Center Boulevard Philadelphia, Philadelphia, PA 19104 USA
| | - Nicolle A. Mode
- grid.419475.a0000 0000 9372 4913Laboratory of Epidemiology and Population Science, National Institute on Aging, National Institutes of Health, 251 Bayview Boulevard, Suite 100, Baltimore, MD 21224 USA
| | - Ngozi Ezike
- grid.419475.a0000 0000 9372 4913Laboratory of Epidemiology and Population Science, National Institute on Aging, National Institutes of Health, 251 Bayview Boulevard, Suite 100, Baltimore, MD 21224 USA
| | - Alan B. Zonderman
- grid.419475.a0000 0000 9372 4913Laboratory of Epidemiology and Population Science, National Institute on Aging, National Institutes of Health, 251 Bayview Boulevard, Suite 100, Baltimore, MD 21224 USA
| | - Michele K. Evans
- grid.419475.a0000 0000 9372 4913Laboratory of Epidemiology and Population Science, National Institute on Aging, National Institutes of Health, 251 Bayview Boulevard, Suite 100, Baltimore, MD 21224 USA
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Tong J, Hu C, Wu Y, Liu Q, Sun D. Radiation-induced NF-κB activation is involved in cochlear damage in mice via promotion of a local inflammatory response. JOURNAL OF RADIATION RESEARCH 2023; 64:63-72. [PMID: 36253086 PMCID: PMC9855318 DOI: 10.1093/jrr/rrac068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 09/08/2022] [Indexed: 06/16/2023]
Abstract
The radiation-induced inflammatory response is involved in radiation damage to the cochlea and causes sensorineural hearing loss (SNHL). NF-κB, as the master switch of the inflammatory response, regulates the expression of many inflammation-related genes and thus the inflammatory response. Therefore, in this study we used a mouse model to determine whether radiation-induced NF-κB activation is involved in damage to the cochlea and to investigate the underlying mechanism. Eventually, we found that NF-κB was activated after radiation of the cochleae and the activation reached a maximum at 2-6 h after radiation. And morphological analysis showed severe damage to the cochleae after radiation, but this damage was significantly ameliorated by JSH-23 (an inhibitor of NF-κB) pretreatment. Along with these morphological changes, the expression levels of proinflammatory molecules (including proinflammatory cytokines IL-6, TNF-α, COX-2 and inflammation-related proteins VCAM-1, MIP-1β) in the cochlear tissues were significantly increased after radiation, but were significantly decreased by JSH-23 pretreatment compared to radiation alone. Therefore, these results indicated that radiation-induced NF-κB activation was involved in damage to the cochleae and resultant SNHL via its promotion of the inflammatory response mediated by overexpression of some proinflammatory molecules in cochlear tissues, and inhibition of radiation-induced NF-κB was conducive to preventing such damage.
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Affiliation(s)
- Jiaojiao Tong
- Cancer Center, the Second Hospital of Shandong University, Jinan, Shandong Province 250033, China
| | - Chunhui Hu
- Cancer Center, the Second Hospital of Shandong University, Jinan, Shandong Province 250033, China
| | - Yuqian Wu
- Cancer Center, the Second Hospital of Shandong University, Jinan, Shandong Province 250033, China
| | - Qin Liu
- Cancer Center, the Second Hospital of Shandong University, Jinan, Shandong Province 250033, China
| | - Dianshui Sun
- Corresponding author. Cancer Center, the Second Hospital of Shandong University, No.247 Beiyuan Road, Jinan, Shandong Province, 250033, China. Tel: +86 13583111990;
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Liu X, Zhang L, Cao Y, Jia H, Li X, Li F, Zhang S, Zhang J. Neuroinflammation of traumatic brain injury: Roles of extracellular vesicles. Front Immunol 2023; 13:1088827. [PMID: 36741357 PMCID: PMC9889855 DOI: 10.3389/fimmu.2022.1088827] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 12/29/2022] [Indexed: 01/19/2023] Open
Abstract
Traumatic brain injury (TBI) is a major cause of neurological disorder or death, with a heavy burden on individuals and families. While sustained primary insult leads to damage, subsequent secondary events are considered key pathophysiological characteristics post-TBI, and the inflammatory response is a prominent contributor to the secondary cascade. Neuroinflammation is a multifaceted physiological response and exerts both positive and negative effects on TBI. Extracellular vesicles (EVs), as messengers for intercellular communication, are involved in biological and pathological processes in central nervous system (CNS) diseases and injuries. The number and characteristics of EVs and their cargo in the CNS and peripheral circulation undergo tremendous changes in response to TBI, and these EVs regulate neuroinflammatory reactions by activating prominent receptors on receptor cells or delivering pro- or anti-inflammatory cargo to receptor cells. The purpose of this review is to discuss the possible neuroinflammatory mechanisms of EVs and loading in the context of TBI. Furthermore, we summarize the potential role of diverse types of cell-derived EVs in inflammation following TBI.
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Affiliation(s)
- Xilei Liu
- Department of Urology, Tianjin Medical University General Hospital, Tianjin, China
| | - Lan Zhang
- Tianjin Geriatrics Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Yiyao Cao
- Tianjin Geriatrics Institute, Tianjin Medical University General Hospital, Tianjin, China
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Repair and Regeneration in Central Nervous System, Tianjin, China
| | - Haoran Jia
- Tianjin Geriatrics Institute, Tianjin Medical University General Hospital, Tianjin, China
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Repair and Regeneration in Central Nervous System, Tianjin, China
| | - Xiaotian Li
- Tianjin Geriatrics Institute, Tianjin Medical University General Hospital, Tianjin, China
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Repair and Regeneration in Central Nervous System, Tianjin, China
| | - Fanjian Li
- Tianjin Geriatrics Institute, Tianjin Medical University General Hospital, Tianjin, China
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Repair and Regeneration in Central Nervous System, Tianjin, China
| | - Shu Zhang
- Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Repair and Regeneration in Central Nervous System, Tianjin, China
| | - Jianning Zhang
- Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Repair and Regeneration in Central Nervous System, Tianjin, China
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Zhou S, Zhu J, Zhou PK, Gu Y. Alveolar type 2 epithelial cell senescence and radiation-induced pulmonary fibrosis. Front Cell Dev Biol 2022; 10:999600. [PMID: 36407111 PMCID: PMC9666897 DOI: 10.3389/fcell.2022.999600] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 10/24/2022] [Indexed: 11/24/2022] Open
Abstract
Radiation-induced pulmonary fibrosis (RIPF) is a chronic and progressive respiratory tract disease characterized by collagen deposition. The pathogenesis of RIPF is still unclear. Type 2 alveolar epithelial cells (AT2), the essential cells that maintain the structure and function of lung tissue, are crucial for developing pulmonary fibrosis. Recent studies indicate the critical role of AT2 cell senescence during the onset and progression of RIPF. In addition, clearance of senescent AT2 cells and treatment with senolytic drugs efficiently improve lung function and radiation-induced pulmonary fibrosis symptoms. These findings indicate that AT2 cell senescence has the potential to contribute significantly to the innovative treatment of fibrotic lung disorders. This review summarizes the current knowledge from basic and clinical research about the mechanism and functions of AT2 cell senescence in RIPF and points to the prospects for clinical treatment by targeting senescent AT2 cells.
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Affiliation(s)
- Shenghui Zhou
- Hengyang Medical College, University of South China, Hengyang, China,Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, AMMS, Beijing, China
| | - Jiaojiao Zhu
- Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, AMMS, Beijing, China
| | - Ping-Kun Zhou
- Hengyang Medical College, University of South China, Hengyang, China,Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, AMMS, Beijing, China,*Correspondence: Yongqing Gu, ; Ping-Kun Zhou,
| | - Yongqing Gu
- Hengyang Medical College, University of South China, Hengyang, China,Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, AMMS, Beijing, China,*Correspondence: Yongqing Gu, ; Ping-Kun Zhou,
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43
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Zhang YW, Cao MM, Li YJ, Chen XX, Yu Q, Rui YF. A narrative review of the moderating effects and repercussion of exercise intervention on osteoporosis: ingenious involvement of gut microbiota and its metabolites. J Transl Med 2022; 20:490. [PMID: 36303163 DOI: 10.1186/s12967-022-03700-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 10/03/2022] [Accepted: 10/09/2022] [Indexed: 11/10/2022] Open
Abstract
Osteoporosis (OP) is a systemic bone disease characterized by the decreased bone mass and destruction of bone microstructure, which tends to result in the enhanced bone fragility and related fractures, as well as high disability rate and mortality. Exercise is one of the most common, reliable and cost-effective interventions for the prevention and treatment of OP currently, and numerous studies have revealed the close association between gut microbiota (GM) and bone metabolism recently. Moreover, exercise can alter the structure, composition and abundance of GM, and further influence the body health via GM and its metabolites, and the changes of GM also depend on the choice of exercise modes. Herein, combined with relevant studies and based on the inseparable relationship between exercise intervention-GM-OP, this review is aimed to discuss the moderating effects and potential mechanisms of exercise intervention on GM and bone metabolism, as well as the interaction between them.
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Affiliation(s)
- Yuan-Wei Zhang
- Department of Orthopaedics, School of Medicine, Zhongda Hospital, Southeast University, No. 87 Ding Jia Qiao, 210009, Nanjing, Jiangsu, PR China.,Multidisciplinary Team (MDT) for Geriatric Hip Fracture Management, School of Medicine, Zhongda Hospital, Southeast University, Nanjing Jiangsu, PR China.,School of Medicine, Southeast University, Nanjing, Jiangsu, PR China.,Orthopaedic Trauma Institute (OTI), Southeast University, Nanjing, Jiangsu, PR China
| | - Mu-Min Cao
- Department of Orthopaedics, School of Medicine, Zhongda Hospital, Southeast University, No. 87 Ding Jia Qiao, 210009, Nanjing, Jiangsu, PR China.,Multidisciplinary Team (MDT) for Geriatric Hip Fracture Management, School of Medicine, Zhongda Hospital, Southeast University, Nanjing Jiangsu, PR China.,School of Medicine, Southeast University, Nanjing, Jiangsu, PR China.,Orthopaedic Trauma Institute (OTI), Southeast University, Nanjing, Jiangsu, PR China
| | - Ying-Juan Li
- Multidisciplinary Team (MDT) for Geriatric Hip Fracture Management, School of Medicine, Zhongda Hospital, Southeast University, Nanjing Jiangsu, PR China.,Department of Geriatrics, School of Medicine, Zhongda Hospital, Southeast University, Nanjing, Jiangsu, PR China
| | - Xiang-Xu Chen
- Department of Orthopaedics, School of Medicine, Zhongda Hospital, Southeast University, No. 87 Ding Jia Qiao, 210009, Nanjing, Jiangsu, PR China.,Multidisciplinary Team (MDT) for Geriatric Hip Fracture Management, School of Medicine, Zhongda Hospital, Southeast University, Nanjing Jiangsu, PR China.,School of Medicine, Southeast University, Nanjing, Jiangsu, PR China.,Orthopaedic Trauma Institute (OTI), Southeast University, Nanjing, Jiangsu, PR China
| | - Qian Yu
- Multidisciplinary Team (MDT) for Geriatric Hip Fracture Management, School of Medicine, Zhongda Hospital, Southeast University, Nanjing Jiangsu, PR China.,Department of Gastroenterology, School of Medicine, Zhongda Hospital, Southeast University, Nanjing, Jiangsu, PR China
| | - Yun-Feng Rui
- Department of Orthopaedics, School of Medicine, Zhongda Hospital, Southeast University, No. 87 Ding Jia Qiao, 210009, Nanjing, Jiangsu, PR China. .,Multidisciplinary Team (MDT) for Geriatric Hip Fracture Management, School of Medicine, Zhongda Hospital, Southeast University, Nanjing Jiangsu, PR China. .,School of Medicine, Southeast University, Nanjing, Jiangsu, PR China. .,Orthopaedic Trauma Institute (OTI), Southeast University, Nanjing, Jiangsu, PR China.
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44
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Kosyreva AM, Sentyabreva AV, Tsvetkov IS, Makarova OV. Alzheimer’s Disease and Inflammaging. Brain Sci 2022; 12:brainsci12091237. [PMID: 36138973 PMCID: PMC9496782 DOI: 10.3390/brainsci12091237] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 08/22/2022] [Accepted: 09/10/2022] [Indexed: 11/23/2022] Open
Abstract
Alzheimer’s disease is one of the most common age-related neurodegenerative disorders. The main theory of Alzheimer’s disease progress is the amyloid-β cascade hypothesis. However, the initial mechanisms of insoluble forms of amyloid-β formation and hyperphosphorylated tau protein in neurons remain unclear. One of the factors, which might play a key role in senile plaques and tau fibrils generation due to Alzheimer’s disease, is inflammaging, i.e., systemic chronic low-grade age-related inflammation. The activation of the proinflammatory cell phenotype is observed during aging, which might be one of the pivotal mechanisms for the development of chronic inflammatory diseases, e.g., atherosclerosis, metabolic syndrome, type 2 diabetes mellitus, and Alzheimer’s disease. This review discusses the role of the inflammatory processes in developing neurodegeneration, activated during physiological aging and due to various diseases such as atherosclerosis, obesity, type 2 diabetes mellitus, and depressive disorders.
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45
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Squillace S, Salvemini D. Toll-like receptor-mediated neuroinflammation: relevance for cognitive dysfunctions. Trends Pharmacol Sci 2022; 43:726-739. [PMID: 35753845 PMCID: PMC9378500 DOI: 10.1016/j.tips.2022.05.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 05/13/2022] [Accepted: 05/27/2022] [Indexed: 10/17/2022]
Abstract
Toll-like receptors (TLRs) are pattern recognition receptors (PRRs) with a well-documented role in the innate and adaptive immune responses. Interestingly, TLR activation has also been linked to several brain functions including neurogenesis and synaptogenesis. Increasing evidence supports TLR involvement in peripheral and central inflammation underlying normal aging and the pathogenesis of clinical conditions characterized by cognitive decline. These include not only major neurodegenerative diseases but also traumatic brain injuries, surgeries, and alcohol consumption- and chemotherapy-induced cognitive impairment. We first summarize the physiological roles of TLRs in the nervous system, and then illustrate the emerging involvement of TLRs in cognitive functions, pointing to these receptors as novel enticing pharmacological targets to develop more efficient drugs for the treatment of cognitive impairment.
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Affiliation(s)
- Silvia Squillace
- Department of Pharmacology and Physiology, and the Henry and Amelia Nasrallah Center for Neuroscience, Saint Louis University School of Medicine, 1402 South Grand Boulevard, St. Louis, MO 63104, USA
| | - Daniela Salvemini
- Department of Pharmacology and Physiology, and the Henry and Amelia Nasrallah Center for Neuroscience, Saint Louis University School of Medicine, 1402 South Grand Boulevard, St. Louis, MO 63104, USA.
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46
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Liang Z, Zhang T, Liu H, Li Z, Peng L, Wang C, Wang T. Inflammaging: The ground for sarcopenia? Exp Gerontol 2022; 168:111931. [PMID: 35985553 DOI: 10.1016/j.exger.2022.111931] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 08/02/2022] [Accepted: 08/14/2022] [Indexed: 12/15/2022]
Abstract
Sarcopenia is a progressive skeletal muscle disease that occurs most commonly in the elderly population, contributing to increased costs and hospitalization. Exercise and nutritional therapy have been proven to be effective for sarcopenia, and some drugs can also alleviate declines in muscle mass and function due to sarcopenia. However, there is no specific pharmacological treatment for sarcopenia at present. This review will mainly discuss the relationship between inflammaging and sarcopenia. The increased secretion of proinflammatory cytokines with aging may be because of cellular senescence, immunosenescence, alterations in adipose tissue, damage-associated molecular patterns (DAMPs), and gut microbes due to aging. These sources of inflammaging can impact the sarcopenia process through direct or indirect pathways. Conversely, sarcopenia can also aggravate the process of inflammaging, creating a vicious cycle. Targeting sources of inflammaging can influence muscle function, which could be considered a therapeutic target for sarcopenia. Moreover, not only proinflammatory cytokines but also anti-inflammatory cytokines can influence muscle and inflammation and participate in the progression of sarcopenia. This review focuses on the effects of TNF-α, IL-6, and IL-10, which can be detected in plasma. Therefore, clearing chronic inflammation by targeting proinflammatory cytokines (TNF-α, IL-1, IL-6) and the inflammatory pathway (JAK/STAT, autophagy, NF-κB) may be effective in treating sarcopenia.
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Affiliation(s)
- Zejun Liang
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, PR China
| | - Tianxiao Zhang
- School of Healthcare Sciences, Cardiff University, Health Park, CF14 4XN Wales, UK
| | - Honghong Liu
- West China School of Nursing/West China Hospital, Sichuan University, NO.37 Alley, Chengdu 610041, Sichuan, PR China
| | - Zhenlin Li
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, PR China
| | - Lihong Peng
- Department of Rehabilitation Medicine, West China Second University Hospital, Sichuan University, PR China
| | - Changyi Wang
- Department of Rehabilitation Medicine, Key Laboratory of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, PR China; Institute of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, PR China
| | - Tiantian Wang
- Department of Rehabilitation Medicine, Key Laboratory of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, PR China; Institute of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, PR China.
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Ahmed IA, Mikail MA, Zamakshshari NH, Mustafa MR, Hashim NM, Othman R. Trends and challenges in phytotherapy and phytocosmetics for skin aging. Saudi J Biol Sci 2022; 29:103363. [PMID: 35813113 PMCID: PMC9260296 DOI: 10.1016/j.sjbs.2022.103363] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 05/23/2022] [Accepted: 06/20/2022] [Indexed: 11/26/2022] Open
Abstract
Free radicals, oxidative stress, and inflammation contribute to the etiology of most chronic diseases. Natural products can be incorporated into cosmetics, cosmeceuticals, and nutricosmetics to tackle inflammation-related diseases. The use of alternative green extraction solvents such as natural deep eutectic solvents and electrochemically reduced water is trending. Delivery systems are important for the enhancement of the bioavailability, stability, solubility, and controlled release profile of the bioactives.
Oxidative stress and inflammation mostly contribute to aging and age-related conditions including skin aging. The potential of natural products in the form of naturally-derived cosmetics, cosmeceuticals, and nutricosmetics have, however, not been fully harnessed. This review, thus, critically analyzes the potential roles of natural products in inflammation-related skin aging diseases due to the increasing consumers’ concerns and demands for efficacious, safe, natural, sustainable, and religiously permitted alternatives to synthetic products. The information and data were collated from various resources and literature databases such as PubMed, Science Direct, Wiley, Springer, Taylor and Francis, Scopus, Inflibnet, Google, and Google Scholar using relevant keywords and Medical Subject Headings (MeSH). The role of green extraction solvents as promising alternatives is also elucidated. The potential enhancements of the bioavailability, stability, solubility and controlled release profile of the bioactives using different delivery systems are also presented. The current potential global market value, motivators, drivers, trends, challenges, halal, and other regulatory certifications for cosmeceuticals and nutricosmetics are equally discussed. The adoption of the suggested extractions and delivery systems would enhance the stability, bioavailability, and target delivery of the bioactives.
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Walker KA, Basisty N, Wilson DM, Ferrucci L. Connecting aging biology and inflammation in the omics era. J Clin Invest 2022; 132:e158448. [PMID: 35838044 PMCID: PMC9282936 DOI: 10.1172/jci158448] [Citation(s) in RCA: 62] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Aging is characterized by the accumulation of damage to macromolecules and cell architecture that triggers a proinflammatory state in blood and solid tissues, termed inflammaging. Inflammaging has been implicated in the pathogenesis of many age-associated chronic diseases as well as loss of physical and cognitive function. The search for mechanisms that underlie inflammaging focused initially on the hallmarks of aging, but it is rapidly expanding in multiple directions. Here, we discuss the threads connecting cellular senescence and mitochondrial dysfunction to impaired mitophagy and DNA damage, which may act as a hub for inflammaging. We explore the emerging multi-omics efforts that aspire to define the complexity of inflammaging - and identify molecular signatures and novel targets for interventions aimed at counteracting excessive inflammation and its deleterious consequences while preserving the physiological immune response. Finally, we review the emerging evidence that inflammation is involved in brain aging and neurodegenerative diseases. Our goal is to broaden the research agenda for inflammaging with an eye on new therapeutic opportunities.
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Affiliation(s)
- Keenan A. Walker
- Intramural Research Program of the National Institute on Aging, NIH, Baltimore, Maryland, USA
| | - Nathan Basisty
- Intramural Research Program of the National Institute on Aging, NIH, Baltimore, Maryland, USA
| | - David M. Wilson
- Biomedical Research Institute, Faculty of Medicine and Life Sciences, Hasselt University, Diepenbeek, Belgium
| | - Luigi Ferrucci
- Intramural Research Program of the National Institute on Aging, NIH, Baltimore, Maryland, USA
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Zhang S, Liu W, Chen S, Wang B, Wang P, Hu B, Lv X, Shao Z. Extracellular matrix in intervertebral disc: basic and translational implications. Cell Tissue Res 2022; 390:1-22. [DOI: 10.1007/s00441-022-03662-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Accepted: 06/23/2022] [Indexed: 02/06/2023]
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50
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Zhong H, Liang H, Yan Y, Chen L, Zhao T, Liu L, Chen Y. Nucleic Acid-Scavenging Hydrogels Accelerate Diabetic Wound Healing. Biomacromolecules 2022; 23:3396-3406. [PMID: 35786877 DOI: 10.1021/acs.biomac.2c00526] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Chronic inflammation is a typical feature and a major impediment in refractory diabetic foot ulcer (DFU). High levels of extracellular cell-free nucleic acid (cfDNA) have recently been known to play a critical role in the cause of inflammation. Herein, we fabricated polyacrylamide-based cationic hydrogels and topically applied them to the ulcer of a diabetic rat model. The cfDNA level in the wound area was significantly reduced after hydrogel adsorption, and the level of inflammation was eliminated. In turn, the wound closure was significantly promoted without introducing systemic toxicity. Cationic hydrogels represent an effective material to combat uncontrolled inflammation in DFU.
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Affiliation(s)
- Hai Zhong
- School of Materials Science and Engineering, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Sun Yat-sen University, Guangzhou 510006, China
| | - Huiyi Liang
- School of Materials Science and Engineering, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Sun Yat-sen University, Guangzhou 510006, China
| | - Yanzi Yan
- School of Materials Science and Engineering, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Sun Yat-sen University, Guangzhou 510006, China
| | - Lei Chen
- Department of Burns, First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Tianyu Zhao
- School of Materials Science and Engineering, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Sun Yat-sen University, Guangzhou 510006, China
| | - Lixin Liu
- School of Materials Science and Engineering, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Sun Yat-sen University, Guangzhou 510006, China
| | - Yongming Chen
- School of Materials Science and Engineering, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Sun Yat-sen University, Guangzhou 510006, China
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