Article
Immunology
Michelle Wantoch, Erica B. Wilson, Alastair P. Droop, Sarah L. Phillips, Matt Coffey, Yasser M. El-Sherbiny, Tim D. Holmes, Alan A. Melcher, Laura F. Wetherill, Graham P. Cook
Summary: This study analyzed the mechanism by which reovirus modulates human NK cell activity. It was found that reovirus activates NK cells through the dependent manner of type I interferon, inducing STAT1 and STAT4 signaling, and producing different responses in CD56(dim) and CD56(bright) subsets. Moreover, reovirus treatment inhibits IL-15-induced NK cell proliferation and reduces AKT signaling. In vivo experiments also showed that CD56(bright) NK cells are transiently lost from the peripheral circulation at the peak of the IFN-I response, indicating their redistribution to secondary lymphoid tissue. The activation of both CD56(dim) and CD56(bright) NK cells by antiviral pathways induces a spectrum of activity that includes the NK cell-mediated killing of tumor cells and modulation of adaptive responses via the trafficking of IFN-gamma expressing CD56(bright) NK cells to lymph nodes.
Article
Biochemistry & Molecular Biology
Elisabetta Vulpis, Luisa Loconte, Chiara Cassone, Fabrizio Antonangeli, Giulio Caracciolo, Laura Masuelli, Francesca Fazio, Maria Teresa Petrucci, Cinzia Fionda, Alessandra Soriani, Cristina Cerboni, Marco Cippitelli, Angela Santoni, Alessandra Zingoni
Summary: Natural Killer (NK) cells are innate cytotoxic lymphoid cells that play a crucial role in cancer immunosurveillance. The secretion of NKG2D ligands (NKG2DLs) through extracellular vesicles (EVs) is a mechanism used by cancer cells to evade NKG2D-mediated immunosurveillance. This study investigates the spreading of NKG2DLs through EV-mediated cross-dressing on multiple myeloma (MM) cells and the potential therapeutic implications.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Review
Biochemistry & Molecular Biology
Takahiro Uchida, Shuhji Seki, Takashi Oda
Summary: Natural killer T (NKT) cells and NK cells have important roles in antitumor and antimicrobial functions. They are involved in various renal diseases, including acute kidney injury (AKI). NKT cells in mice are activated by specific ligands, cytokines, and bacterial components, leading to AKI. Both renal vascular endothelial cell injury (via perforin-mediated pathway) and tubular epithelial cell injury (via tumor necrosis factor-alpha/Fas ligand pathway) are independently involved in the pathogenesis of AKI. NK cells complement the functions of NKT cells in the development of infection-associated AKI. Human CD56(+) T cells, which are functional counterparts of murine NKT cells, and a subpopulation of CD56(+) NK cells damage intrinsic renal cells in vitro upon activation, possibly through mechanisms similar to those in mice. These cells are also thought to be involved in the acute exacerbation of pre-existing glomerulonephritis triggered by infection in humans, and their roles in sepsis-associated AKI are currently under investigation. In this review, we provide an overview of recent advances in the understanding of the association among infections, NKT and NK cells, and kidney injury, which is much more profound than previously considered. The important role of liver macrophages in the activation of NKT cells is also introduced.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Biochemistry & Molecular Biology
Abrar Ul Haq Khan, Melinda Blimkie, Doo Seok Yang, Mandy Serran, Tyler Pack, Jin Wu, Ji-Young Kang, Holly Laakso, Seung-Hwan Lee, Yevgeniya Le
Summary: LDR significantly influenced the proportion, proliferation, activation, and function of immune cells, particularly NK and T cells, but had no noticeable impact on mammary cancer development. The study also demonstrated the modulation of the cross-talk between NKG2D receptor and its ligands by LDR exposure at different time points.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Immunology
Rui-Ting Liu, Wei Li, Dong Guo, Chun-Lin Yang, Jie Ding, Jian-Xin Xu, Rui-Sheng Duan
Summary: The study found that NK cells in patients with myasthenia gravis have abnormal immune-regulation on CD4(+) T cells and Tfh cells, which may contribute to the immune-pathological mechanism of MG.
INTERNATIONAL IMMUNOPHARMACOLOGY
(2021)
Review
Biochemistry & Molecular Biology
Alexander T. H. Cocker, Lisbeth A. Guethlein, Peter Parham
Summary: Long-term human diseases can affect the immune system and induce the differentiation of natural killer (NK) cells into distinct subsets, particularly in chronic virus infections such as HIV-1. This review focuses on the CD56-CD16+ NK cell subset, which is frequently found in these infections. The review discusses the evidence linking CD56-CD16+ NK cells to chronic virus infections, explores the potential immunological pathways involved in their differentiation due to long-term infection, and highlights the influence of virus and genetic-mediated variations in HLA expression on CD56-CD16+ NK cell frequencies.
BIOCHEMICAL SOCIETY TRANSACTIONS
(2023)
Article
Medicine, General & Internal
Laura Strobel, Kilian Vomstein, Christiana Kyvelidou, Susanne Hofer-Tollinger, Katharina Feil, Ruben-Jeremias Kuon, Susanne Ebner, Jakob Troppmair, Bettina Toth
Summary: In this study, we found that compared to sRPL patients, sCtrls had higher numbers of CD56(+) and CD56(dim)CD16(bright) cells. Furthermore, sRPL patients had lower numbers of CD56(dim)CD16(bright)NKG2D(+) and CD56(dim)CD16(bright)NKp46(+) compared to sCtrls.
JOURNAL OF CLINICAL MEDICINE
(2021)
Article
Biochemistry & Molecular Biology
Yiying Zhu, Zhangxun Zhao, Minggao Xue, Dan Wang, Guifeng Su, Xiaoman Ju, Qihong Yang, Shaohua Zhang, Dongmei Fan, Huifang Zhu, Min Yu, Yan Li, Lingmei Kong, Hongyu Zhou
Summary: Activation of the NKG2D receptor can enhance the sensitivity of leukemia cells to NK cell cytotoxicity, and this can be achieved through the use of drugs such as Ciclopirox Olamine (CPX). CPX can increase the expression of NKG2D ligands (NKG2DLs) on leukemia cells, thereby enhancing the efficacy of NK cell-mediated immunotherapy.
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
(2023)
Article
Cell Biology
Elisabetta Vulpis, Luisa Loconte, Agnese Peri, Rosa Molfetta, Giulio Caracciolo, Laura Masuelli, Luana Tomaipitinca, Giovanna Peruzzi, Sara Petillo, Maria Teresa Petrucci, Francesca Fazio, Lucilla Simonelli, Cinzia Fionda, Alessandra Soriani, Cristina Cerboni, Marco Cippitelli, Rossella Paolini, Giovanni Bernardini, Gabriella Palmieri, Angela Santoni, Alessandra Zingoni
Summary: This study investigated the immunomodulatory properties of the NKG2D ligand MICA*008 associated with different populations of extracellular vesicles (sEVs and mEVs). The results showed that MICA*008 is present on both vesicle populations, and NKG2D is involved in the uptake of vesicles expressing its cognate ligand. MICA*008-expressing sEVs and mEVs can activate NK cells, but prolonged stimulation leads to NKG2D downmodulation and impaired NKG2D-mediated functions. Additionally, MICA*008 can be transferred by vesicles to NK cells, causing fratricide. The accumulation of NKG2D ligands associated with vesicles in the tumor microenvironment may suppress NK cell activity.
JOURNAL OF EXTRACELLULAR VESICLES
(2022)
Article
Oncology
Nayoung Kim, Mi Yeon Kim, Woo Seon Choi, Eunbi Yi, Hyo Jung Lee, Hun Sik Kim
Summary: GSK-3 alpha primarily restrains the expression of activating receptor ligands on target cells, reducing their susceptibility to NK cells, suggesting a potential strategy to enhance tumor cell susceptibility to NK cells.
Article
Immunology
Maria Giovanna Desimio, Andrea Finocchi, Gigliola Di Matteo, Silvia Di Cesare, Carmela Giancotta, Francesca Conti, Luciana Chessa, Maria Piane, Davide Montin, Marta Dellepiane, Paolo Rossi, Caterina Cancrini, Margherita Doria
Summary: NK cells in A-T patients show reduced NKG2D expression, possibly contributing to increased susceptibility. The abnormal expression of NKG2D in A-T patients may be associated with disease progression.
CLINICAL IMMUNOLOGY
(2021)
Article
Cell Biology
Reem Alkhayer, Viviane Ponath, Miriam Frech, Till Adhikary, Johannes Graumann, Andreas Neubauer, Elke Pogge von Strandmann
Summary: This study identifies the transcription factor KLF4 as associated with the MICA promoter, and demonstrates that pharmacological activation of KLF4 leads to increased expression of MICA in AML cells. The small compound APTO253, which activates KLF4, also inhibits MYC expression and causes DNA damage in AML cells. The induction of MICA expression renders AML cells more susceptible to NK cell-mediated killing, suggesting a potential therapeutic approach for targeting AML cells.
CELL COMMUNICATION AND SIGNALING
(2023)
Article
Oncology
Rui Zhang, Qingxi Liu, Sa Zhou, Hongpeng He, Mingfeng Zhao, Wenjian Ma
Summary: In this study, a genetically modified bifunctional CAR-NK cell therapy was developed for the treatment of acute myeloid leukemia (AML). The bifunctional CD33/B16 CAR-NK cells showed superior killing efficiency towards AML cells compared to CAR-NK cells targeting CD33 only. In vivo studies also demonstrated effective clearance of leukemic cells and improved survival. These findings suggest a promising CAR-NK approach for AML treatment and potentially other tumors.
Article
Allergy
Robert Ose, Benno Weigmann, Detlef Schuppan, Ari Waisman, Joachim Saloga, Iris Bellinghausen
Summary: CD56(+)CD3(+) iNKT cells promote allergen-specific gut and lung inflammation in PBMC-engrafted humanized mice, opening up new possibilities for therapeutic intervention in allergic diseases.
JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY
(2021)
Article
Immunology
Jing Yang, Pengfei Li, Yingshi Piao, Xindi Liu, Liqiang Wei, Wei Sang, Luo Zhang, Liang Wang
Summary: This study found differences between CD56-negative and CD56-positive NKTCL in both the tumor microenvironment and survival outcomes. Asparaginase-based treatment may help to overcome the poor prognosis associated with CD56 negativity.
FRONTIERS IN IMMUNOLOGY
(2022)
Article
Nutrition & Dietetics
Sarah Maria Barneze Costa, Raghavendra Lakshmana Shetty Hallur, David Rafael Abreu Reyes Postdoc, Juliana Ferreira Floriano Postdoc, Maria Antonieta de Barros Leite Carvalhaes, Helio Rubens de Carvalho Nunes, Luis Sobrevia, Paola Valero, Angelica Mercia Pascon Barbosa, Marilza Cunha Vieira Rudge
Summary: This study aimed to assess maternal dietary intake patterns, anthropometric measures, and biochemical markers in women with gestational diabetes mellitus and pregnancy-specific urinary incontinence. The results showed that pregnant women in the gestational diabetes mellitus pregnancy-specific urinary incontinence group had higher body mass index, arm circumference, and triceps skinfold than the other groups, indicating an obesogenic maternal environment. Significant differences in dietary food intake were also observed. The study emphasizes the need for a comprehensive strategy for pregnant women with gestational diabetes mellitus and pregnancy-specific urinary incontinence to address obesity and micronutrient deficiencies.
Article
Nutrition & Dietetics
Aikaterina Vasileiou, Dominique Searle, Sofus C. Larsen, Faidon Magkos, Graham Horgan, R. James Stubbs, Ines Santos, Antonio L. Palmeira, Berit L. Heitmann
Summary: The study compared self-reported total energy intake with total energy expenditure estimated from Fitbit Charge 2 algorithms. The results showed that self-reported energy intake was generally lower than energy expenditure, and the degree of underestimation varied among different populations.
Article
Nutrition & Dietetics
Ziya Erokay Metin, Ozge Mengi Celik, Nevra Koc
Summary: This study demonstrates a significant relationship between climate change awareness and sustainable and healthy eating behaviors as well as adherence to the Mediterranean diet.
Article
Nutrition & Dietetics
Carolline Santos Miranda, Flavia Maria Silva-Veiga, Daiana Araujo Santana-Oliveira, Isabela Macedo Lopes Vasques-Monteiro, Julio Beltrame Daleprane, Vanessa Souza-Mello
Summary: This study investigates the role of peroxisome proliferator-activated receptor (PPAR) activation on thermogenic pathways and mitochondrial metabolism in mouse adipose tissue. The results show that activation of PPARa and dual PPARa/y can reduce body mass, mitigate insulin resistance, and induce browning in white adipose tissue. Preserved mitochondrial metabolism emerges as a potential target for obesity treatment using PPAR agonists, with possible clinical applications.
Article
Nutrition & Dietetics
Qi Ren, Hao-Fan Wu, Ding-Ye Yu, Feng-Min Zhang, Zi-Le Shen, Guo-Wei Huang, Feng Lin, Wei-Zhe Chen, Zhen Yu
Summary: The study aimed to develop a nomogram incorporating preoperative factors for predicting low skeletal muscle mass index and low skeletal muscle radiodensity. The models were calibrated and assessed for their predictive ability using training and validation cohorts, and the clinical usefulness was evaluated using decision curve analysis.
Article
Nutrition & Dietetics
Ruben Castillo-Ortega, Juan Vega-Vargas, Samuel Duran-Aguero
Summary: This study found that during the COVID-19 pandemic, patients with type 1 diabetes experienced decreased adherence to diabetes care, leading to an increase in HbA1c levels, BMI, impaired linear growth, and more hospitalizations. The shift to telemedicine as the main healthcare service also had significant effects on diabetes management.
Article
Nutrition & Dietetics
Yi-Hsiu Chen, Jung-An Lin, Jiun-Rong Chen, Ya-Ling Chen, Suh-Ching Yang
Summary: Regular nutrition consultations have been shown to have significant effects on reducing cardiovascular disease risk factors, especially for individuals with obesity.
Article
Nutrition & Dietetics
Jacinta Winderlich, Bridget Little, Felix Oberender, Tessa Bollard, Tamara Farrell, Samantha Jenkins, Emma Landorf, Andrea McCall, Jessica Menzies, Katie O. ' Brien, Carla Rowe, Kirsten Sim, Melanie van der Wilk, Jemma Woodgate, Eldho Paul, Andrew A. Udy, Emma J. Ridley
Summary: The study aims to describe nutrition provision in Australian and New Zealand pediatric intensive care units, assess the adequacy of enteral nutrition, and evaluate the methods for estimating energy and protein requirements.
Article
Nutrition & Dietetics
Xi Zhang, Jia-Xin Huang, Meng Tang, Qi Zhang, Li Deng, Chun-Hua Song, Wei Li, Han-Ping Shi, Ming-Hua Cong
Summary: The study found that the modified Controlling Nutritional Status system, which includes C-reactive protein as an inflammatory parameter, is more accurate than the traditional system in predicting the survival of patients with cancer cachexia. High Controlling Nutritional Status and modified Controlling Nutritional Status are both independent risk factors for survival and have a negative impact on survival in patients with advanced-stage cancers, such as esophagogastric and colorectal cancer.
Article
Nutrition & Dietetics
Karolien Dams, Gregory R. A. De Meyer, Rita Jacobs, Tom Schepens, Stany Perkisas, Greta Moorkens, Philippe Jorens
Summary: The study aimed to investigate the development of muscle atrophy in COVID-19 intensive care unit patients and its relationship with hospital outcomes. The results showed that the difference in muscle thickness was linked to the outcome, with the best survival observed in the group with stable muscle thickness.
Article
Nutrition & Dietetics
Bruna Clemente Cota, Mariana de Santis Filgueiras, Patricia Feliciano Pereira, Leidjaira Lopes Juvanhol, Juliana Farias de Novaes
Summary: This study found that higher consumption of ultra-processed food (UPF) and a diet consisting of high proinflammatory foods were associated with the normal-weight obesity (NWO) phenotype in children.
Article
Nutrition & Dietetics
Victor Nogueira da Cruz Silveira, Cleber Lopes Campelo, Antonio Luis Rodrigues da Costa, Patricia Maria Abreu Machado, Ana Karina Teixeira da Cunha Franca, Alcione Miranda dos Santos
Summary: This psychometric study proposed a scale for estimating the consumption of ultra processed foods using item response theory. The study used data from a representative sample of 2515 adolescents aged 18 and 19 from Brazilian Birth Cohorts Consortium. The findings demonstrated that the proposed scale can accurately estimate the consumption of ultra processed foods and is correlated with latent traits related to food consumption.
Article
Nutrition & Dietetics
Dehao Yang, Jiaqi Huang, Jingyu Hu, Minyue Zhang, Haobo Xie, Yilin Chen, Yining Jin, Zerui Jiang, Yanchu Wang, Jinrong Zhu, Xin Lu, Siqi Chen, Yiyun Weng, Guangyong Chen
Summary: This study investigates the association between malnutrition and 6-month outcomes in acute ischemic stroke patients with or without intravenous thrombolysis. The results show a significant association between malnutrition and poor functional outcome.
Article
Nutrition & Dietetics
Ainoa Cristina de Oliveira Candido, Felipe Silva Neves, Vanessa Sequeira Fontes, Adriana Soares Torres Melo, Eliane Rodrigues de Faria, Michele Pereira Netto, Renata Maria Souza Oliveira, George Luiz Lins Machado-Coelho, Ana Paula Carlos Candido
Summary: This study investigated the frequency of breakfast consumption and its associations with the consumption of food at different degrees of industrial processing and with overweight indicators in Brazilian adolescents. The results showed that 20% of adolescents skipped breakfast and 46% of their caloric intake came from ultra-processed foods. Skipping breakfast was associated with increased consumption of ultra-processed foods, higher BMI-for-age, and higher body fat percentage.