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REVIEW
Shiv Bharadwaj, Yaroslava Groza, Joanna M Mierzwicka, Petr Malý
Triggering receptor expressed on myeloid cells 2 (TREM-2), a glycosylated receptor belonging to the immunoglobin superfamily and especially expressed in the myeloid cell lineage, is frequently explained as a reminiscent receptor for both adaptive and innate immunity regulation. TREM-2 is also acknowledged to influence NK cell differentiation via the PI3K and PLCγ signaling pathways, as well as the partial activation or direct inhibition of T cells. Additionally, TREM-2 overexpression is substantially linked to cell-specific functions, such as enhanced phagocytosis, reduced toll-like receptor (TLR)-mediated inflammatory cytokine production, increased transcription of anti-inflammatory cytokines, and reshaped T cell function...
May 3, 2024: International Immunopharmacology
#22
JOURNAL ARTICLE
Jing Wang, Xiaofei Li, Xihui Qiang, Xueqing Yin, Lianyi Guo
BACKGROUND: Gastric cancer (GC) is a prevalent type of malignant gastrointestinal tumor. Many studies have shown that CENPE acts as an oncogene in some cancers. However, its expression level and clinical value in GC are not clear. METHODS: Obtaining clinical data information on gastric adenocarcinoma from TCGA and GEO databases. The gene expression profiling interaction analysis (GEPIA) was used to evaluate the relationship between prognosis and CENPE expression in gastric cancer patients...
May 3, 2024: BMC Medical Genomics
#23
JOURNAL ARTICLE
Jun Liu, Junfeng Liao, Fan Lin, Chenyang Nie
OBJECTIVE: To observe the effects of Qiye Shen'an Pian combined with ghrelin and vitamin B1 on the fatigue status, immune function, and quality of life of patients with chronic fatigue syndrome (CFS), focusing specifically on the efficacy of this combination therapy. METHODS: In this prospective study, 106 CFS patients admitted from June 2021 to June 2023 were selected. Using a simple randomisation method, patients were divided into two groups. The conventional group received glutathione and vitamin B1 treatment, while the Qiye Shen'an group received an additional treatment with Qiye Shen'an Pian on top of the standard glutathione and vitamin B1, for a continuous period of 8 weeks...
May 3, 2024: Alternative Therapies in Health and Medicine
#24
JOURNAL ARTICLE
Jiyoung Yun, Robert Saddawi-Konefka, Benjamin Goldenson, Riyam Al-Msari, Davide Bernareggi, Jaya L Thangaraj, Shiqi Tang, Sonam H Patel, Sarah M Luna, J Silvio Gutkind, Dan Kaufman
BACKGROUND: Natural killer (NK) cells are key effector cells of antitumor immunity. However, tumors can acquire resistance programs to escape NK cell-mediated immunosurveillance. Identifying mechanisms that mediate this resistance enables us to define approaches to improve immune-mediate antitumor activity. In previous studies from our group, a genome-wide CRISPR-Cas9 screen identified Charged Multivesicular Body Protein 2A ( CHMP2A ) as a novel mechanism that mediates tumor intrinsic resistance to NK cell activity...
May 3, 2024: Journal for Immunotherapy of Cancer
#25
JOURNAL ARTICLE
Mana Momenilandi, Romain Lévy, Steicy Sobrino, Jingwei Li, Chantal Lagresle-Peyrou, Hossein Esmaeilzadeh, Antoine Fayand, Corentin Le Floc'h, Antoine Guérin, Erika Della Mina, Debra Shearer, Ottavia M Delmonte, Ahmad Yatim, Kevin Mulder, Mathieu Mancini, Darawan Rinchai, Adeline Denis, Anna-Lena Neehus, Karla Balogh, Sarah Brendle, Hassan Rokni-Zadeh, Majid Changi-Ashtiani, Yoann Seeleuthner, Caroline Deswarte, Boris Bessot, Cassandre Cremades, Marie Materna, Axel Cederholm, Masato Ogishi, Quentin Philippot, Omer Beganovic, Mania Ackermann, Margareta Wuyts, Taushif Khan, Sébastien Fouéré, Florian Herms, Johan Chanal, Boaz Palterer, Julie Bruneau, Thierry J Molina, Stéphanie Leclerc-Mercier, Jean-Luc Prétet, Leila Youssefian, Hassan Vahidnezhad, Nima Parvaneh, Kristl G Claeys, Rik Schrijvers, Marine Luka, Philippe Pérot, Jacques Fourgeaud, Céline Nourrisson, Philippe Poirier, Emmanuelle Jouanguy, Stéphanie Boisson-Dupuis, Jacinta Bustamante, Luigi D Notarangelo, Neil Christensen, Nils Landegren, Laurent Abel, Nico Marr, Emmanuelle Six, David Langlais, Tim Waterboer, Florent Ginhoux, Cindy S Ma, Stuart G Tangye, Isabelle Meyts, Nico Lachmann, Jiafen Hu, Mohammad Shahrooei, Xavier Bossuyt, Jean-Laurent Casanova, Vivien Béziat
FMS-related tyrosine kinase 3 ligand (FLT3L), encoded by FLT3LG, is a hematopoietic factor essential for the development of natural killer (NK) cells, B cells, and dendritic cells (DCs) in mice. We describe three humans homozygous for a loss-of-function FLT3LG variant with a history of various recurrent infections, including severe cutaneous warts. The patients' bone marrow (BM) was hypoplastic, with low levels of hematopoietic progenitors, particularly myeloid and B cell precursors. Counts of B cells, monocytes, and DCs were low in the patients' blood, whereas the other blood subsets, including NK cells, were affected only moderately, if at all...
May 2, 2024: Cell
#26
JOURNAL ARTICLE
Michael Kilian, Mirco J Friedrich, Kevin Hai-Ning Lu, David Vonhören, Selina Jansky, Julius Michel, Anna Keib, Saskia Stange, Nicolaj Hackert, Niklas Kehl, Markus Hahn, Antje Habel, Stefanie Jung, Kristine Jähne, Felix Sahm, Johannes Betge, Adelheid Cerwenka, Frank Westermann, Peter Dreger, Marc S Raab, Nadja M Meindl-Beinker, Matthias Ebert, Lukas Bunse, Carsten Müller-Tidow, Michael Schmitt, Michael Platten
Understanding the mechanisms that regulate T cell immunity is critical for the development of effective therapies for diseases associated with T cell dysfunction, including autoimmune diseases, chronic infections, and cancer. Co-inhibitory "checkpoint molecules," such as programmed cell death protein-1, balance excessive or prolonged immune activation by T cell-intrinsic signaling. Here, by screening for mediators of natural killer (NK) cell recognition on T cells, we identified the immunoglobulin superfamily ligand B7H6 to be highly expressed by activated T cells, including patient-infused CD19-targeting chimeric antigen receptor (CAR) T cells...
May 3, 2024: Science Immunology
#27
REVIEW
Jennifer Wu
Immune checkpoint inhibitor (ICI)-based therapy has made an unprecedented impact on survival benefit for a subset of cancer patients; however, only a subset of cancer patients is benefiting from ICI therapy if all cancer types are considered. With the advanced understanding of interactions of immune effector cell types and tumors, cell-based therapies are emerging as alternatives to patients who could not benefit from ICI therapy. Pioneering work of chimeric antigen receptor T (CAR-T) therapy for hematological malignancies has brought encouragement to a broad range of development for cellular-based cancer immunotherapy, both innate immune cell-based therapies and T-cell-based therapies...
May 3, 2024: BioDrugs: Clinical Immunotherapeutics, Biopharmaceuticals and Gene Therapy
#28
JOURNAL ARTICLE
Dan Tomomasa, Kay Tanita, Yuriko Hiruma, Akihiro Hoshino, Ko Kudo, Shohei Azumi, Mitsutaka Shiota, Masayoshi Yamaoka, Katsuhide Eguchi, Masataka Ishimura, Yuka Tanaka, Keiji Iwatsuki, Keisuke Okuno, Asahito Hama, Ken-Ichi Sakamoto, Takashi Taga, Kimitoshi Goto, Haruka Ota, Akihiro Ichiki, Kaori Kanda, Takako Miyamura, Saori Endo, Hidenori Ohnishi, Yoji Sasahara, Ayako Arai, Benjamin Fornier, Ken-Ichi Imadome, Tomohiro Morio, Sylvain Latour, Hirokazu Kanegane
When Epstein-Barr virus (EBV) infection is suspected, identification of infected cells is important to understand the pathogenesis, determinine the treatment strategy, and predict the prognosis. We used the PrimeFlow™ RNA Assay Kit with a probe to detect EBV-encoded small RNAs (EBERs) and multiple surface markers, to identify EBV-infected cells by flow cytometry. We analyzed a total of 24 patients [11 with chronic active EBV disease (CAEBV), 3 with hydroa vacciniforme lymphoproliferative disorder, 2 with X-linked lymphoproliferative disease type 1 (XLP1), 2 with EBV-associated hemophagocytic lymphohistiocytosis, and 6 with posttransplant lymphoproliferative disorder (PTLD)]...
May 3, 2024: International Journal of Hematology
#29
JOURNAL ARTICLE
Luciana Polaco Covre, Carlos Henrique Fantecelle, Ariadne Mendes Queiroz, Julia Miranda Fardin, Pedro Henrique Miranda, Sian Henson, Alessandra Marcia da Fonseca-Martins, Herbert Leonel de Matos Guedes, David Mosser, Aloisio Falqueto, Arne Akbar, Daniel Claudio Oliveira Gomes
Natural killer (NK) cells include different subsets with diverse effector capacities that are poorly understood in the context of parasitic diseases. Here, we investigated inhibitory and activating receptor expression on NK cells in patients with cutaneous leishmaniasis (CL) and explored their phenotypic and functional heterogeneity based on CD57 and NKG2C expression. The expression of CD57 identified NK cells that accumulated in CL patients and exhibited features of senescence. The CD57+ cells exhibited heightened levels of the activating receptor NKG2C and diminished expression of the inhibitory receptor NKG2A...
May 3, 2024: Clinical and Experimental Immunology
#30
JOURNAL ARTICLE
James C Ryan, Christina Haight, Erene C Niemi, Joshua D Grab, Jennifer L Dodge, Lewis L Lanier, Alexander Monto
BACKGROUND AND AIMS: Second-generation direct-acting antivirals (2G DAA) to cure HCV have led to dramatic clinical improvements. HCV-associated hepatocellular carcinoma (HCC), however, remains common. Impaired immune tumor surveillance may play a role in HCC development. Our cohort evaluated the effects of innate immune types and clinical variables on outcomes including HCC. METHODS: Participants underwent full HLA class I/KIR typing and long-term HCV follow-up...
May 3, 2024: European Journal of Immunology
#31
JOURNAL ARTICLE
Norma Rallón, Daniel Jiménez-Carretero, Clara Restrepo, José M Ligos, Jaime Valentín-Quiroga, Ignacio Mahillo, Alfonso Cabello, Eduardo López-Collazo, Fátima Sánchez-Cabo, Miguel Górgolas, Vicente Estrada, José M Benito
Elite controllers (ECs) are an exceptional group of people living with HIV (PLWH) that control HIV replication without therapy. Among the mechanisms involved in this ability, natural killer (NK)-cells have recently gained much attention. We performed an in-deep phenotypic analysis of NK-cells to search for surrogate markers associated with the long term spontaneous control of HIV. Forty-seven PLWH (22 long-term EC [PLWH-long-term elite controllers (LTECs)], 15 noncontrollers receiving antiretroviral treatment [ART] [PLWH-onART], and 10 noncontrollers cART-naïve [PLWH-offART]), and 20 uninfected controls were included...
May 2024: Journal of Medical Virology
#32
JOURNAL ARTICLE
Nayoung Kim, Eunbi Yi, Eunbi Lee, Hyo Jin Park, Hun Sik Kim
Natural killer (NK) cells are key effectors in cancer immunosurveillance, eliminating a broad spectrum of cancer cells without major histocompatibility complex (MHC) specificity and graft-versus-host diseases (GvHD) risk. The use of allogeneic NK cell therapies from healthy donors has demonstrated favorable clinical efficacies in treating diverse cancers, particularly hematologic malignancies, but it requires cytokines such as IL-2 to primarily support NK cell persistence and expansion. However, the role of IL-2 in the regulation of activating receptors and the function of NK cells expanded for clinical trials is poorly understood and needs clarification for the full engagement of NK cells in cancer immunotherapy...
2024: Frontiers in Immunology
#33
JOURNAL ARTICLE
Huina Shi, Zhaosheng Li, Mingchen Zhu
BACKGROUND: The immune system is linked to the prognosis and response to treatment of patients with cancer. However, the clinical implication of peripheral blood immune cells in cholangiocarcinoma (CCA) remains vague. Thus, we aimed to assess whether peripheral circulating immune cells could be used as an indicator for prognosis and chemotherapeutic efficacy in CCA. METHODS: The distributions of immune subsets were analyzed in peripheral blood samples from 141 patients with CCA and 131 healthy volunteers by using flow cytometry...
May 2, 2024: Current Medicinal Chemistry
#34
JOURNAL ARTICLE
Giselle Larissa Allsopp, Alex Bernard Addinsall, Garth Stephenson, Faiza Basheer, Paul Adrian Della Gatta, Samantha May Hoffmann, Aaron Paul Russell, Craig Robert Wright
TRIAL DESIGN: Older adults experience chronic dysregulation of leukocytes and inflammatory cytokines, both at rest and in response to resistance training. Systemic hypoxia modulates leukocytes and cytokines, therefore this study characterized the effects of normobaric hypoxia on the leukocyte and cytokine responses of older adults to resistance training. METHODS: 20 adults aged 60-70 years performed eight weeks of moderate-intensity resistance training in either normoxia or normobaric hypoxia (14...
May 2, 2024: BMC Sports Science, Medicine and Rehabilitation
#35
JOURNAL ARTICLE
Daniela Angela Covino, Maria Giovanna Desimio, Alessandro Giovinazzo, Bruna Sabino Pinho de Oliveira, Matilde Merolle, Daniela Marazziti, Manuela Pellegrini, Margherita Doria
Ataxia-telangiectasia (A-T) is a rare disorder caused by genetic defects of A-T mutated (ATM) kinase, a key regulator of stress response, and characterized by neurodegeneration, immunodeficiency, and high incidence of cancer. Here we investigated NK cells in a mouse model of A-T (Atm-/- ) showing that they are strongly impaired at killing tumor cells due to a block of early signaling events. On the other hand, in Atm-/- littermates with thymic lymphoma NK cell cytotoxicity is enhanced as compared with ATM-proficient mice, possibly via tumor-produced TNF-α...
April 30, 2024: Clinical Immunology: the Official Journal of the Clinical Immunology Society
#36
JOURNAL ARTICLE
Napas Taechasan, Iris Scherwitzl, Piyada Supasa, Wanwisa Dejnirattisai, Kanokwan Sriruksa, Wannee Limpitikul, Prida Malasit, Gavin R Screaton, Juthathip Mongkolsapaya, Thaneeya Duangchinda
Natural killer cells (NK cells) are the front line of immune cells to combat pathogens and able to influence the subsequent adaptive immune responses. One of the factors contributing to pathogenesis in dengue hemorrhagic fever (DHF) disease is aberrant immune activation during early phase of infection. This study explored the profile of NK cells in dengue infected pediatric patients with different degrees of disease severity. DHF patients contained higher frequency of activated NK cells but lower ratio of CD56dim :CD56bright NK subsets...
April 30, 2024: Virus Research
#37
JOURNAL ARTICLE
Benjamin H Nguyen, Maggie L Bartlett, Elizabeth M Troisi, Elise Stanley, Diane E Griffin
UNLABELLED: Sindbis virus (SINV) infection of mice provides a model system for studying the pathogenesis of alphaviruses that infect the central nervous system (CNS) to cause encephalomyelitis. While studies of human viral infections typically focus on accessible cells from the blood, this compartment is rarely evaluated in mice. To bridge this gap, single-cell RNA sequencing (scRNAseq) was combined with flow cytometry to characterize the transcriptional and phenotypic changes of peripheral blood mononuclear cells (PBMCs) from SINV-infected mice...
May 2, 2024: MBio
#38
REVIEW
Chinmayee Priyadarsini Dash, Dhruba Sonowal, Prachi Dhaka, Rohit Yadav, Dewan Chettri, Bibhu Prasad Satapathy, Pooja Sheoran, Vivek Uttam, Manju Jain, Aklank Jain
Recent advancements in genetic engineering have made it possible to modify Natural Killer (NK) cells to enhance their ability to fight against various cancers, including solid tumors. This comprehensive overview discusses the current status of genetically engineered chimeric antigen receptor NK-cell therapies and their potential for treating solid tumors. We explore the inherent characteristics of NK cells and their role in immune regulation and tumor surveillance. Moreover, we examine the strategies used to genetically engineer NK cells in terms of efficacy, safety profile, and potential clinical applications...
2024: Frontiers in Immunology
#39
JOURNAL ARTICLE
Dongjin Lee, Seok Min Kim, Dahong Kim, Seung Yeop Baek, Seon Ju Yeo, Jae Jong Lee, Chaenyung Cha, Su A Park, Tae-Don Kim
Recently, interest in cancer immunotherapy has increased over traditional anti-cancer therapies such as chemotherapy or targeted therapy. Natural killer (NK) cells are part of the immune cell family and essential to tumor immunotherapy as they detect and kill cancer cells. However, the disadvantage of NK cells is that cell culture is difficult. In this study, porous microgels have been fabricated using microfluidic channels to effectively culture NK cells. Microgel fabrication using microfluidics can be mass-produced in a short time and can be made in a uniform size...
June 2024: Materials today. Bio
#40
JOURNAL ARTICLE
Pui Yeng Lam, Fernando Souza-Fonseca-Guimaraes
Natural killer (NK) cells possess potent cytotoxicity against infected and cancerous cells and hold promise in the development of new immunotherapies. This article for the Highlights of 2023 Series focuses on current advances in NK cell biology in cancerous and infectious settings and highlights opportunities for therapeutic interventions, including engineered NK cell therapies and advancements in feeder cell technologies.
May 2, 2024: Immunology and Cell Biology
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