Article
Gastroenterology & Hepatology
Yong Liu, Xintong Hu, Xiaoli Hu, Lei Yu, Huifan Ji, Wanyu Li, Yanjun Cai, Genhong Cheng, Yanfang Jiang
Summary: This study demonstrates that pegylated interferon alpha (PEG-IFN-alpha) improves the seroconversion rate of hepatitis B surface antigen (HBsAg) in patients with chronic hepatitis B (CHB) by stimulating CD40L-expressing T follicular helper (TFH) cells.
JOURNAL OF GASTROENTEROLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Mingjuan Yin, Yongzhen Xiong, Lingfeng Huang, Gang Liu, Zuwei Yu, Yi Zhao, Jie Zhao, Yan Zhang, Tingyu Lian, Jingxiao Huang, DongMei Liang, JinMei Zeng, Jindong Ni
Summary: This study investigates the immune response to hepatitis B vaccination and finds similar kinetics between circulating Tfh cells and splenic Tfh cells; cTfh cells are positively correlated with anti-HBs at one week after vaccination; in vitro experiments show preferential activation of CXCR3(-)Tfh cell subsets in peripheral blood mononuclear cells stimulated by HBsAg.
HUMAN VACCINES & IMMUNOTHERAPEUTICS
(2021)
Article
Biochemistry & Molecular Biology
David San Segundo, Alejandra Comins-Boo, Juan Irure-Ventura, Monica Renuncio-Garcia, Adriel Roa-Bautista, Elena Gonzalez-Lopez, David Merino-Fernandez, Patricia Lamadrid-Perojo, Marta Alonso-Pena, Javier Gonzalo Ocejo-Vinyals, Maria Gutierrez-Larranaga, Sandra Guiral-Foz, Marcos Lopez-Hoyos
Summary: By testing the immune response of 52 healthcare workers who received the BNT162b2 vaccine, this study found high levels of humoral and T cell-specific responses. Thirty days after the second dose, significant increases were observed in T helper 1 memory cells, peripheral memory T follicular helper cells, and switched memory cells.
Article
Immunology
Yiting Wei, Yunpeng Zhang, Pengcheng Li, Chunguang Yan, Lixin Wang
Summary: Thymosin a-1 (Ta-1) is an immunomodulating polypeptide that has been widely used for the treatment of viral infections, immunodeficiencies, and malignancies. It stimulates both innate and adaptive immune responses and its regulation of immune cells varies under different disease conditions. Ta-1 has a pleiotropic effect on immune cells depending on Toll-like receptors activation and downstream signaling pathways.
INTERNATIONAL IMMUNOPHARMACOLOGY
(2023)
Article
Environmental Sciences
Jinlong Li, Yuanyuan Guo, Xiaoxu Duan, Bing Li
Summary: Inorganic arsenic induces immune tolerance in murine dendritic cells by down-regulating the expression of phenotypic molecules, pro-inflammatory factors, and T-lymphocyte cytokines. The immunosuppressive property of arsenic may be partially mediated by the HO-1 pathway, contributing to the development of infections and malignant diseases.
Article
Immunology
Lorenzo Islas-Vazquez, Marisa Cruz-Aguilar, Henry Velazquez-Soto, Aida Jimenez-Corona, Sonia Mayra Perez-Tapia, Maria C. Jimenez-Martinez
Summary: Immunization against COVID-19 induces the production of IgG antibodies related to SARS-CoV-2, which may be mediated by TFH and effector-memory B-lymphocytes. These findings can be used to inform the design of vaccine schedules.
Article
Immunology
Qin Xu, Pedro Milanez-Almeida, Andrew J. J. Martins, Andrea J. J. Radtke, Kenneth B. B. Hoehn, Cihan Oguz, Jinguo Chen, Can Liu, Juanjie Tang, Gabrielle Grubbs, Sydney Stein, Sabrina Ramelli, Juraj Kabat, Hengameh Behzadpour, Maria Karkanitsa, Jacquelyn Spathies, Heather Kalish, Lela Kardava, Martha Kirby, Foo Cheung, Silvia Preite, Patrick C. C. Duncker, Moses M. M. Kitakule, Nahir Romero, Diego Preciado, Lyuba Gitman, Galina Koroleva, Grace Smith, Arthur Shaffer, Ian T. T. McBain, Peter J. J. McGuire, Stefania Pittaluga, Ronald N. N. Germain, Richard Apps, Daniella M. M. Schwartz, Kaitlyn Sadtler, Susan Moir, Daniel S. S. Chertow, Steven H. H. Kleinstein, Surender Khurana, John S. S. Tsang, Pamela Mudd, Pamela L. L. Schwartzberg, Kalpana Manthiram
Summary: Most studies have focused on peripheral blood to understand adaptive immunity to SARS-CoV-2, but this study examined samples from children undergoing tonsillectomy and adenoidectomy to explore immune responses at the site of infection. The findings revealed evidence of previous SARS-CoV-2 infection in the tonsils and adenoids, including neutralizing antibodies and virus-specific B and T cells. These immune responses showed persistence in the upper respiratory tract, indicating a tissue-specific immunity to SARS-CoV-2 in children after infection.
Article
Immunology
Antonella Minutolo, Vita Petrone, Marialaura Fanelli, Christian Maracchioni, Martina Giudice, Elisabetta Teti, Luigi Coppola, Chiara Sorace, Marco Iannetta, Martino Tony Miele, Sergio Bernardini, Antonio Mastino, Paola Sinibaldi Vallebona, Emanuela Balestrieri, Massimo Andreoni, Loredana Sarmati, Sandro Grelli, Enrico Garaci, Claudia Matteucci
Summary: The complex alterations of the immune system and the immune-mediated multiorgan injury play a key role in the pathogenesis of COVID-19. Thymosin alpha 1 (T alpha 1) has been used in the treatment of COVID-19 to restore the homeostasis of the immune system. T alpha 1 has shown to decrease hospitalization rate and reduce mortality in COVID-19 patients by restoring lymphocytopenia and depleted T cells. The use of T alpha 1 also improves the restoration of an appropriate immune response in individuals with post-acute sequelae of SARS-CoV-2 infection (PASC), especially in those with more severe illness and specific symptoms of PASC.
INTERNATIONAL IMMUNOPHARMACOLOGY
(2023)
Review
Immunology
Jia-Rui Zheng, Zi-Long Wang, Bo Feng
Summary: Hepatitis B virus infection causes indirect damage to hepatocytes through the immune system. The exhaustion of virus-specific immune cells and immune suppression by virus antigens contribute to the chronicity of the infection. Functional cure can be achieved by restoring the specific immune function, providing a theoretical basis for complete cure of hepatitis B.
FRONTIERS IN IMMUNOLOGY
(2022)
Article
Allergy
Sudhir Gupta, Houfen Su, Sudhanshu Agrawal
Summary: Following complete vaccination, there was a significant increase in CD4 T-EM and CD8 T-CM subsets; regulatory lymphocytes appear to play a role in the magnitude of the immune response.
INTERNATIONAL ARCHIVES OF ALLERGY AND IMMUNOLOGY
(2022)
Article
Immunology
Luca Danelli, Georgina Cornish, Julia Merkenschlager, George Kassiotis
Summary: The study found that selectively priming protective responses through amplification of signal 1, particularly inducing Th1 effector cells and memory cells through enhanced signal 1. These cells can protect against retroviral infection and tumor challenge, and enhance the immune response of tumor-reactive CD4(+) T cells.
CELLULAR & MOLECULAR IMMUNOLOGY
(2021)
Article
Immunology
M. S. Espinar-Buitrago, E. Vazquez-Alejo, E. Magro-Lopez, L. Tarancon-Diez, M. Leal, M. A. Munoz-Fernandez
Summary: This study found that Tα1 can modulate the phenotype and cytokine production of immune cells, improve immune response to cytomegalovirus infection, and enhance the polyfunctionality of CD8+ T lymphocytes.
INTERNATIONAL IMMUNOPHARMACOLOGY
(2023)
Article
Pharmacology & Pharmacy
Xueying Li, Anqi Zheng, Jiabang Liu, Mengfen Shi, Baolin Liao, Shi Xie, Rong Yan, Yifan Gan, Xuan Zuo, Mingxing Gong, Hongkai Wu, Zhanhui Wang
Summary: Challenges still exist in assessing HBV-specific T cell immunity in chronic hepatitis B patients, including the need for large quantities of cells. In this study, a dataset of HBV-specific T cell receptor beta chains (TCR beta s) was established using public databases and samples from acute hepatitis B patients. Analysis of the potential HBV-specific TCR beta s from chronic hepatitis B patients showed that individuals with better therapy response may rely more on newly emerging TCR beta s. Furthermore, the characteristics of potential HBV-specific clusters were found to differ between chronic hepatitis B and hepatocellular carcinoma patients in a cross-sectional study. Our strategy provides a convenient method for assessing HBV-specific T cell immunity using a small blood sample.
ANTIVIRAL RESEARCH
(2023)
Article
Immunology
Miranda L. Curtiss, Alexander F. Rosenberg, Christopher D. Scharer, Betty Mousseau, Natalia A. Ballesteros Benavides, John E. Bradley, Beatriz Leon, Chad Steele, Troy D. Randall, Frances E. Lund
Summary: CHI3L1 is found to play a significant role in allergic diseases based on data from patient cohorts and mouse models. In this study, Chi3l1 was shown to modulate T(H)2 and IL-4-producing T-FH cells, which are crucial for IgE responses.
FRONTIERS IN IMMUNOLOGY
(2023)
Article
Pharmacology & Pharmacy
Shengxia Yin, Jian Wang, Lin Chen, Minxin Mao, Rahma Issa, Yu Geng, Rui Huang, Xin Tong, Yong Liu, Chao Wu, Yuxin Chen, Jie Li
Summary: Failure to cure chronic hepatitis B virus (HBV) infection can impair B cell function. This study found that CTLA4 regulates B cell and T follicular helper (Tfh) cell differentiation, and that upregulation of CTLA4 in cTfh cells is associated with decreased HBsAg-specific resting memory B cells. Inhibition of CTLA4 restored HBsAb secretion and promoted plasma cell differentiation. These findings suggest that optimizing Tfh cell responses may lead to a functional cure for chronic HBV infection.
ANTIVIRAL RESEARCH
(2023)
Article
Pharmacology & Pharmacy
Micol Ferrara, Jessica Cusato, Elena Salvador, Alice Trentalange, Chiara Alcantarini, Mattia Trunfio, Elvira Stefania Cannizzo, Valeria Bono, Silvia Nozza, Amedeo De Nicolo, Alice Ianniello, Elisa De Vivo, Antonio D'Avolio, Giovanni Di Perri, Stefano Bonora, Giulia Marchetti, Andrea Calcagno
Summary: This study aimed to investigate the correlation between inflammation markers and antiretroviral drug concentrations in HIV-positive patients. The results showed that there was a correlation between plasma inflammation markers and antiretroviral drug concentrations, suggesting an interplay between drug penetration and persistent inflammation.
BRITISH JOURNAL OF CLINICAL PHARMACOLOGY
(2023)
Article
Immunology
Savino Sciascia, Marta Arbrile, Mattia Trunfio, Andrea Calcagno, Massimo Radin, Dario Roccatello, David Lembo, Andrea Civra
Summary: The etiology of Behcet syndrome (BS), a rare immune-mediated form of vasculitis, is still unclear due to a lack of understanding about the interaction between genetic susceptibility, environmental triggers, and abnormal immune response. One theory suggests that infectious organisms can trigger an aberrant immune response through molecular mimicry. It has also been shown that BS phenotypes are linked to dysbiosis in the oral and gut microbiome, which contains proteins and metabolites that can mimic autoantigens. Infections, including viral pathogens, may play a role in triggering inflammation and symptoms of BS. This review aims to discuss the evidence on the relationship between BS and infections, and its potential clinical implications and therapeutic targets.
AUTOIMMUNITY REVIEWS
(2023)
Article
Immunology
Cecilia Bonazzetti, Beatrice Tazza, Dino Gibertoni, Zeno Pasquini, Natascia Caroccia, Francesca Fani, Giacomo Fornaro, Renato Pascale, Matteo Rinaldi, Beatrice Miani, Chiara Gamberini, Maria Cristina Morelli, Mariarosa Tame, Marco Busutti, Giorgia Comai, Luciano Potena, Laura Borgese, Elena Salvaterra, Tiziana Lazzarotto, Luigia Scudeller, Pierluigi Viale, Maddalena Giannella
Summary: The relationship between antibody response (AbR) and breakthrough infection (BI) after SARS-CoV-2 vaccination in 614 solid organ transplant (SOT) recipients was analyzed. Heart transplant recipients had the lowest probability of immunization and the highest probability of breakthrough infection. Non-high-level AbR and shorter time from transplantation were associated with breakthrough infection.
CLINICAL INFECTIOUS DISEASES
(2023)
Article
Neurosciences
Mattia Trunfio, Laura Di Girolamo, Laura Ponzetta, Marco Russo, Elisa Burdino, Daniele Imperiale, Cristiana Atzori, Giovanni Di Perri, Andrea Calcagno
Summary: HSV-1 chronic infection, but not HSV-2 and VZV, is independently associated with neurological abnormalities such as blood-brain barrier impairment, abnormal levels of tau and phosphorylated tau in cerebrospinal fluid, and decreased concentrations of beta amyloid fragment 1-42.
JOURNAL OF NEUROVIROLOGY
(2023)
Review
Medicine, General & Internal
Cristiana Laici, Amedeo Bianchini, Noemi Miglionico, Niccolo Bambagiotti, Giovanni Vitale, Guido Fallani, Matteo Ravaioli, Antonio Siniscalchi
Summary: Liver transplantation is the gold standard treatment for end-stage liver disease, and the use of ECMO and CRRT support during the peri-transplantation period has shown positive outcomes in managing life-threatening complications. This retrospective study evaluated three clinical cases of planned ECMO support strategies in liver transplantation and found that all three patients had successful outcomes. The use of ECMO and CRRT support in peri-transplantation allows patients to overcome contraindications and undergo liver transplantation successfully.
JOURNAL OF CLINICAL MEDICINE
(2023)
Review
Pharmacology & Pharmacy
Francesco Venuti, Mattia Trunfio, Anne-Grete Martson, Filippo Lipani, Sabrina Audagnotto, Giovanni Di Perri, Andrea Calcagno
Summary: Consolidated data from pharmacokinetic and pharmacodynamic studies support the administration of beta-lactam antibiotics in prolonged infusion to optimize therapeutic efficacy. Novel beta-lactam/beta-lactamase inhibitor combinations have shown promising roles in treating MDR Gram-negative bacteria. This review summarizes available pharmacological and clinical data, future perspectives, and limitations of prolonged infusion of these novel protected beta-lactams.
Article
Gastroenterology & Hepatology
Gideon M. Hirschfield, Mitchell L. Shiffman, Aliya Gulamhusein, Kris Kowdley, John M. Vierling, Cynthia Levy, Andreas E. Kremer, Ehud Zigmond, Pietro Andreone, Stuart C. Gordon, Christopher L. Bowlus, Eric J. Lawitz, Richard J. Aspinall, Daniel S. Pratt, Karina Raikhelson, Maria S. Gonzalez-Huezo, Michael A. Heneghan, Sook-Hyang Jeong, Alma L. Ladron de Guevara, Marlyn J. Mayo, George N. Dalekos, Joost P. H. Drenth, Ewa Janczewska, Barbara A. Leggett, Frederik Nevens, Victor Vargas, Eli Zuckerman, Christophe Corpechot, Eduardo Fassio, Holger Hinrichsen, Pietro Invernizzi, Palak J. Trivedi, Lisa Forman, David E. J. Jones, Stephen D. Ryder, Mark G. Swain, Alexandra Steinberg, Pol F. Boudes, Yun-Jung Choi, Charles A. McWherter
Summary: This study evaluated the efficacy and safety of seladelpar in patients with primary biliary cholangitis who had inadequate response or intolerance to ursodeoxycholic acid. The results showed that seladelpar significantly improved liver biochemistry and pruritus in these patients, and it was well tolerated.
Review
Gastroenterology & Hepatology
Laura Turco, Thomas Reiberger, Giovanni Vitale, Vincenzo La Mura
Summary: Portal hypertension is a common complication of cirrhosis and plays a crucial role in hepatic decompensation. Carvedilol, a non-selective beta-blocker, has shown superior efficacy in reducing portal hypertension compared to traditional beta-blockers, making it a preferred treatment option for clinically significant portal hypertension in patients with cirrhosis.
LIVER INTERNATIONAL
(2023)
Review
Virology
Filippo Gabrielli, Francesco Alberti, Cristina Russo, Carmela Cursaro, Hajrie Seferi, Marzia Margotti, Pietro Andreone
Summary: Hepatitis A and hepatitis E are common causes of liver disease transmitted through the faecal-oral route. Both viruses can cause acute disease with mild liver injury, but severe disease or chronic manifestations can occur in vulnerable patients. Treatment mainly focuses on supportive measures, with limited evidence for aetiological treatment and additional agents in severe cases. Corticosteroid therapy and certain molecules have shown potential for improving outcomes in HAV infection, while ribavirin is the main therapeutic option for HEV infection. Vaccines for HAV have been successful in reducing disease prevalence, and vaccines for HEV are currently being developed.
Article
Infectious Diseases
Bianca Maria Longo, Francesco Venuti, Alberto Gaviraghi, Tommaso Lupia, Fabio Antonino Ranzani, Andrea Pepe, Laura Ponzetta, Davide Vita, Tiziano Allice, Vanesa Gregorc, Pio Manlio Mirko Frascione, Francesco Giuseppe De Rosa, Andrea Calcagno, Stefano Bonora
Summary: This study retrospectively included 15 immunosuppressed patients to investigate treatment strategies for persistent COVID-19. The results showed that sequential or combination regimens of antivirals and monoclonal antibodies were highly effective and safe in immunosuppressed patients.
Article
Biochemistry & Molecular Biology
Elisa Bernasconi, Matteo Biagi, Stefania Di Agostino, Carmela Cursaro, Cristina Felicani, Enrico Ronconi, Elena Franchi, Arianna Carmen Costanzo, Filippo Gabrielli, Alessia Cavicchioli, Giuseppe Ienopoli, Paolo Marenghi, Alessandra Bartoli, Beatrice Serra, Davide Scalabrini, Pamela Sighinolfi, Pietro Andreone
Summary: This study described a case series of patients who developed acute hepatitis following SARS-CoV-2 vaccination or infection, and speculated a possible genetic susceptibility in the pathogenesis.
Article
Health Care Sciences & Services
Amedeo Bianchini, Cristiana Laici, Noemi Miglionico, Maria Giacinta Bianchi, Elena Tarozzi, Enrico Bernardi, Jessica Toni, Erika Cordella, Giovanni Vitale, Antonio Siniscalchi
Summary: An essential method for collecting more abdominal donor organs is controlled donation after circulatory death (cDCD). This study presents a case where transesophageal echocardiography (TEE) was used to effectively procure viable abdominal organs from a cDCD donor in the shortest time frame. TEE use leads to a more efficient and effective abdominal normothermic regional perfusion (A-NRP) procedure with limited complications, allowing observation of circulation in both thoracic and abdominal organs with one fast exam. Although prospective studies are needed, TEE could potentially become a standard practice for all DCD organ retrieval procedures.
JOURNAL OF PERSONALIZED MEDICINE
(2023)
Article
Gastroenterology & Hepatology
Alessandra Bartoli, Carmela Cursaro, Hajrie Seferi, Pietro Andreone
Summary: This review focuses on COVID-19 secondary sclerosing cholangiopathy (SSC) and its pathogenesis, with an emphasis on clinical, imaging, and histological findings. The most likely causes of the disease are direct viral cytopathic action and COVID-19-related coagulopathy. Ketamine may be a cofactor but cannot be definitively linked as the main determinant cause of cholangiopathy. Further study is needed due to the severe prognosis of the disease.
HEPATIC MEDICINE-EVIDENCE AND RESEARCH
(2023)
Meeting Abstract
Gastroenterology & Hepatology
Vincenza Calvaruso, Ciro Celsa, Laura Cristoferi, Miki Scaravaglio, Luigi Capodicasa, Luca Cadamuro, Gabriele Di Maria, Vito Di Marco, Alessio Gerussi, Federica Malinverno, Pietro Lampertico, Nora Cazzagon, Marco Marzioni, Umberto Vespasiani Gentilucci, Pietro Andreone, Ana Lleo, Cristina Rigamonti, Edoardo Giovanni Giannini, Maurizio Russello, Ester Vanni, Federica Cerini, Gabriele Missale, Maurizia Brunetto, Grazia Niro, Giovanni Vettori, Antonino Castellaneta, Domenico Alvaro, Valeria Pace Palitti, Francesco Bellanti, Pietro Invernizzi, Calogero Camma, Marco Carbone
JOURNAL OF HEPATOLOGY
(2023)
Meeting Abstract
Gastroenterology & Hepatology
Filippo Gabrielli, Simonetta Lugari, Alessia Cavicchioli, Amedeo Lonardo, Cristina Felicani, Antonia Rudilosso, Chiara Pacchioni, Carla Greco, Chiara Valenti, Luigi Valerio, Mario Bondi, Daniele Santi, Giorgia Spaggiari, Stefano Ballestri, Tommaso Trenti, Valentina Pecoraro, Manuela Simoni, Pietro Andreone, Fabio Nascimbeni
JOURNAL OF HEPATOLOGY
(2023)