STATE OF CELLULAR IMMUNITY IN PURULENT CHOLANGITIS DOI
O. V. Maloshtan,

R. M. Smachylo,

A. A. Nekliudov

et al.

Kharkiv Surgical School, Journal Year: 2024, Volume and Issue: 1, P. 39 - 43

Published: March 20, 2024

Abstract. Objective: To study the state of cellular link immunity in acute and chronic cholangitis. Materials methods. Cholangitis always worsens condition biliary system. Depending on magnitude pathological changes bile ducts, we distinguished three groups patients. Group I – cholangitis caused by obstruction main extrahepatic ducts due to choledocholithiasis, group II conditions cicatricial strictures III already performed reconstruction duct The indicators were studied separately each group. results. conducted studies indicate an imbalance immune system patients with different courses presence inflammation a mild degree severity causes stimulation almost all links system, while branch reacts first. Conclusions. Long-term was accompanied suppression markers T-lymphocyte differentiation — CD2+, CD3+, CD4+ CD8+, which take part antigen presentation, signal transmission other cells affect their adhesive properties.

Language: Английский

Primary biliary cholangitis DOI Creative Commons
Atsushi Tanaka, Xiong Ma, Atsushi Takahashi

et al.

The Lancet, Journal Year: 2024, Volume and Issue: 404(10457), P. 1053 - 1066

Published: Aug. 28, 2024

Primary biliary cholangitis is a chronic, autoimmune, cholestatic disease that mainly affects women aged 40-70 years. Recent epidemiological studies have shown an increasing incidence worldwide despite geographical heterogeneity and decrease in the female-to-male ratio of those affects. Similar to other autoimmune diseases, primary occurs genetically predisposed individuals upon exposure environmental triggers, specifically xenobiotics, smoking, gut microbiome. Notably, diversity intestinal microbiome diminished with cholangitis. The intricate interplay among immune cells, cytokines, chemokines, epithelial cells postulated as underlying pathogenic mechanism involved development progression cholangitis, extensive research has been dedicated comprehending these complex interactions. Following official approval obeticholic acid second-line treatment for patients incomplete response or intolerance ursodeoxycholic acid, clinical trials indicated peroxisome proliferator activator receptor agonists are promising additional drugs. Future dual triple drug regimens might reach new goal normalisation alkaline phosphatase levels, rather than less 1·67 times upper limit normal potentially improve long-term outcomes. Improvement health-related quality life better recognition care subjective symptoms, such pruritus fatigue, also important goal. Promising investigations underway alleviate symptoms. Efforts facilitate access medical dissemination current knowledge should enable diagnosis at earlier stage ensure treatments based on risk stratification all patients.

Language: Английский

Citations

23

Challenges and opportunities in achieving effective regulatory T cell therapy in autoimmune liver disease DOI Creative Commons
Naomi Richardson,

Grace Wootton,

Amber Bozward

et al.

Seminars in Immunopathology, Journal Year: 2022, Volume and Issue: 44(4), P. 461 - 474

Published: May 31, 2022

Abstract Autoimmune liver diseases (AILD) include autoimmune hepatitis (AIH), primary biliary cholangitis (PBC) and sclerosing (PSC). These immune-mediated involve a break down in peripheral self-tolerance with largely unknown aetiology. Regulatory T cells (Treg) are crucial maintaining immunological tolerance. Hence, Treg immunotherapy is an attractive therapeutic option AILD. Currently, AILD do not have curative treatment patients take life-long immunosuppression or bile acids to control hepatic inflammation. Clinical investigations using good manufacturing practice (GMP) disease thus far demonstrated that therapy safe migrate inflamed tissue. For achieve efficacy AILD, must be retained within the maintain their suppressive phenotype dampen ongoing immune responses hepatocytes epithelium. Therefore, subsets should selected for tissue residency markers maximal functionality. Optimisation of dosing regime understanding longevity vivo critical successful therapy. It also essential consider combination options complement infused Treg, instance low-dose interleukin-2 (IL-2) support pre-existing survival function. Understanding microenvironment both early- late-stage presents significant opportunity better tailor different patient groups. Modification hostile more favourable one either prior during could enhance GMP-Treg. Applying recent technology discovery autoantigen cell receptor (TCR) sequencing use chimeric antigen (CAR) represents next frontier disease-specific CAR-Treg therapies. Consideration all these aspects future trials research would position GMP as viable personalised-medicine effective diseases.

Language: Английский

Citations

36

Immunological mechanisms in steatotic liver diseases: An overview and clinical perspectives DOI Creative Commons

Mengyao Yan,

Shuli Man,

Long Ma

et al.

Clinical and Molecular Hepatology, Journal Year: 2024, Volume and Issue: 30(4), P. 620 - 648

Published: July 11, 2024

Steatotic liver diseases (SLD) are the principal worldwide cause of cirrhosis and end-stage cancer, affecting nearly a quarter global population. SLD includes metabolic dysfunction-associated alcoholic disease (MetALD) steatotic (MASLD), resulting in asymptomatic steatosis, fibrosis, associated complications. The immune processes include gut dysbiosis, adiposeliver organ crosstalk, hepatocyte death cell-mediated inflammatory processes. Notably, various cells such as B cells, plasma dendritic conventional CD4<sup>+</sup> CD8<sup>+</sup> T innate-like platelets, neutrophils macrophages play vital roles development MetALD MASLD. Immunological modulations targeting death, reactions microbiome N-acetylcysteine, selonsertib, F-652, prednisone, pentoxifylline, anakinra, JKB-121, HA35, obeticholic acid, probiotics, prebiotics, antibiotics fecal microbiota transplantation. Understanding immunological mechanisms underlying is crucial for advancing clinical therapeutic strategies.

Language: Английский

Citations

8

Immunosuppressive drugs modes of action DOI Creative Commons
María Meneghini, Oriol Bestard, Josep M. Grinyó

et al.

Best Practice & Research Clinical Gastroenterology, Journal Year: 2021, Volume and Issue: 54-55, P. 101757 - 101757

Published: June 16, 2021

The innate and adaptive immune systems work as a complex interplay between different cell types, involving cytokines chemokines mediating extracellular paracrine effects. At the intracellular level, inflammatory cascade is mediated by multifaceted processes that have been better described in last 10 years. Immunosuppressive agents available clinical practice act at points of those cascades or level. Those drugs can mediate their effects on one more types finally limiting inflammation responses to antigens. Every immunosuppressive agent characterized intrinsic toxicity side may be due same therapeutic pathways off-target secondary effect each molecule. We will here review mechanisms action most widely used field solid organ transplantation autoimmune disorders, describing underlying both

Language: Английский

Citations

41

Repurposing of rituximab biosimilars to treat B cell mediated autoimmune diseases DOI Creative Commons
Agata Mostkowska, Guy Rousseau, Noël J.‐M. Raynal

et al.

The FASEB Journal, Journal Year: 2024, Volume and Issue: 38(5)

Published: March 12, 2024

Abstract Rituximab, the first monoclonal antibody approved for treatment of lymphoma, eventually became one most popular and versatile drugs ever in terms clinical application revenue. Since its patent expiration, consequently, loss exclusivity original biologic, repurposing as an off‐label drug has increased dramatically, propelled by development commercialization many biosimilars. Currently, rituximab is prescribed worldwide to treat a vast range autoimmune diseases mediated B cells. Here, we present comprehensive overview 115 across 17 medical specialties, sourced from over 1530 publications. Our work highlights extent use benefits, underlining success both common orphan immune‐related diseases. We discuss scientific mechanism associated with efficacy provide additional indications which could be investigated. study presents flagship example owing central role targeting cluster differentiate 20 positive (CD20) cells

Language: Английский

Citations

6

Biliary fibrosis is an important but neglected pathological feature in hepatobiliary disorders: from molecular mechanisms to clinical implications DOI Creative Commons
Jinyu Zhao, Ping Yue, Ningning Mi

et al.

Medical Review, Journal Year: 2024, Volume and Issue: 4(4), P. 326 - 365

Published: June 28, 2024

Abstract Fibrosis resulting from pathological repair secondary to recurrent or persistent tissue damage often leads organ failure and mortality. Biliary fibrosis is a crucial but easily neglected feature in hepatobiliary disorders, which may promote the development progression of benign malignant biliary diseases through healing mechanisms tract injuries. Elucidating etiology pathogenesis beneficial prevention treatment diseases. In this review, we emphasized importance cholangiopathies summarized clinical manifestations, epidemiology, aberrant cellular composition involving ductules, cholangiocytes, immune system, fibroblasts, microbiome. We also focused on pivotal signaling pathways offered insights into ongoing trials proposing strategic approach for managing fibrosis-related cholangiopathies. This review will offer comprehensive perspective provide an important reference future mechanism research innovative therapy prevent reverse fibrosis.

Language: Английский

Citations

4

Insights Gained Into the Injury Mechanism of Drug and Herb Induced Liver Injury in the Hepatic Microenvironment DOI
Xiaomeng Zhang, Qi Geng, Lin Lin

et al.

Toxicology, Journal Year: 2024, Volume and Issue: 507, P. 153900 - 153900

Published: July 29, 2024

Language: Английский

Citations

4

The Role of B Cells in Adult and Paediatric Liver Injury DOI Creative Commons

Arzoo Patel,

Yuxin S. Liu, Scott Davies

et al.

Frontiers in Immunology, Journal Year: 2021, Volume and Issue: 12

Published: Sept. 23, 2021

B lymphocytes are multitasking cells that direct the immune response by producing pro- or anti-inflammatory cytokines, presenting processed antigen for T cell activation and co-stimulation, turning into antibody-secreting cells. These functions important to control infection in liver but can also exacerbate tissue damage fibrosis as part of persistent inflammation lead end stage disease requiring a transplant. In transplantation, immunosuppression increases incidence lymphoma often this is origin. review we bring together information on biology from different diseases, including alcohol-related metabolic fatty disease, autoimmune hepatitis, primary biliary sclerosing cholangitis, viral hepatitis and, infants, atresia. We discuss impact depletion therapy setting. Taken together, our analysis shows pathogenesis diseases further research necessary fully characterise human compartment.

Language: Английский

Citations

26

Bacterial components‐driven intrahepatic CXCR5hi B cells are important population for MASH progression through inducing inflammation DOI Open Access
Nam‐Hee Kim, Mi‐Yeon Kim, Yoon Mee Yang

et al.

The FASEB Journal, Journal Year: 2025, Volume and Issue: 39(2)

Published: Jan. 15, 2025

Metabolic dysfunction-associated steatohepatitis (MASH) is characterized by severe liver inflammation and fibrosis due to an imbalanced immune response caused enhanced bacterial components. The progression of MASH closely linked increased permeability intestinal mucosal barrier facilitating enter components into hepatic portal venous system. B cells are important for adaptive responses enhance through cytokine production T cell activation. influenced gut microbiota, but the specific populations in their pathologic mechanism remain obscure. Here, we found that numbers highly expressing CXCR5, receptor CXCL13 chemokine, were livers MASH. CXCR5 high non-proliferating naive with inflammatory features mainly residing parenchyma affect pathology. Importantly, revealed induced stimulating TLRs. These stimulator-induced CXCR5hi express TNFα, CD80, MHC class II, leading Consistently, confirmed intravenous injection model. Ultimately, this study elucidates role mechanisms advancing progression.

Language: Английский

Citations

0

Upadacitinib for refractory Primary Biliary Cholangitis DOI
Mirjam Kolev,

Burkhard Möller,

Annalisa Berzigotti

et al.

Journal of Hepatology, Journal Year: 2025, Volume and Issue: unknown

Published: March 1, 2025

Language: Английский

Citations

0