Article
Chemistry, Multidisciplinary
Yanyun Hao, Hui Li, Xiaoyan Ge, Yang Liu, Jialin Yin, Xia Li, Yutong Liu, Hongfei Chen, Lingling Huang, Jing Zou, Shiying Zhang, Hao Wu, Zhiyue Zhang
Summary: The researchers developed a redox-activatable polymeric nanoswitch that can switch on after entering the tumor, enhancing the infiltration of T lymphocytes and priming of T lymphocytes for cancer treatment. The nanoswitch releases immune agonists and inhibitors to strengthen the immune response against tumors.
JOURNAL OF CONTROLLED RELEASE
(2023)
Article
Biotechnology & Applied Microbiology
Wenqiang Shi, Liangyin Lv, Nan Liu, Hui Wang, Yang Wang, Wen Zhu, Zexin Liu, Jianwei Zhu, Huili Lu
Summary: In this study, a novel immunocytokine LH01 was developed by fusing the antibody against PD-L1 and IL-15, which efficiently binds to PD-L1 and activates immune responses. The results showed that LH01 had improved antitumor efficacy and overcame resistance to anti-PD-L1 treatment. The fusion of anti-PD-L1 and IL-15 might be a potent strategy to treat cold tumors or resistance to checkpoint blockade.
Article
Biochemistry & Molecular Biology
Thuzar Hla Shwe, Peraphan Pothacharoen, Thanyaluck Phitak, Benjawan Wudtiwai, Prachya Kongtawelert
Summary: In this study, the synergistic upregulation of PD-L1 expression in HepG2 cells by a combination of IFNγ and TNFα was observed, with STAT1 activation playing a major role in this synergistic effect. Atorvastatin was found to inhibit the induction of PD-L1 by either IFNγ alone or IFNγ/TNFα combination treatment in HepG2 cells. These findings suggest that atorvastatin may impact tumor immune response through inhibiting PD-L1 induction in cancer patients.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Medicine, Research & Experimental
Christina Li-Ping Thio, Alan Chuan-Ying Lai, Jo-Chiao Wang, Po-Yu Chi, Ya-Lin Chang, Yu-Tse Ting, Shih-Yu Chen, Ya-Jen Chang
Summary: This study found that PM2.5 can induce airway hyperreactivity and neutrophilic inflammation, accompanied by increased Th1 and Th17 responses and epithelial cell apoptosis. γ8 T cells promote neutrophilic inflammation and AHR through IL-17A, while iNKT cells play a protective role by inhibiting γ8 T cell function through Tim-1 and PD-L1, preventing PM2.5-induced AHR and neutrophilia.
Article
Immunology
Ruixuan Geng, Hui Tang, Tingting You, Xiuxiu Xu, Sijian Li, Zepeng Li, Yuan Liu, Wei Qiu, Na Zhou, Ningning Li, Yuping Ge, Fuping Guo, Yuhong Sun, Yingyi Wang, Taisheng Li, Chunmei Bai
Summary: PD-1/PD-L1 inhibitors can be effective in patients with high levels of CD8+CD28+ T cells, which can be used as a potential biomarker for predicting immunotherapy response.
FRONTIERS IN IMMUNOLOGY
(2023)
Article
Multidisciplinary Sciences
Masayuki Nakajima, Masashi Matsuyama, Mio Kawaguchi, Sosuke Matsumura, Takumi Kiwamoto, Yosuke Matsuno, Yuko Morishima, Kazufumi Yoshida, Mingma Thsering Sherpa, Kai Yazaki, Ryota Tanaka, Naoko Okiyama, Masafumi Muratani, Yukio Ishii, Nobuyuki Hizawa
Summary: Blocking the PD-1/PD-L1 pathway did not affect susceptibility to MAC infection, potentially due to lack of significant changes in Th1 immune response. Additionally, activation of CD8-positive cells in response to MAC infection in these mice seemed to not be relevant in the control of MAC infection.
SCIENTIFIC REPORTS
(2021)
Review
Biochemistry & Molecular Biology
David Escors, Ana Bocanegra, Luisa Chocarro, Ester Blanco, Sergio Pineiro-Hermida, Maider Garnica, Leticia Fernandez-Rubio, Ruth Vera, Hugo Arasanz, Grazyna Kochan
Summary: PD-L1/PD-1 blockade immunotherapy has revolutionized cancer treatment, but its mechanisms and effectiveness are still not fully understood. This article reviews the evidence supporting the role of CD4 T cells in anti-tumor immunity and their potential as predictors of response to PD-L1/PD-1 blockade immunotherapy.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Immunology
Xiao-Jun Guo, Jia-Cheng Lu, Hai-Ying Zeng, Rong Zhou, Qi-Man Sun, Guo-Huan Yang, Yan-Zi Pei, Xian-Long Meng, Ying-Hao Shen, Peng-Fei Zhang, Jia-Bin Cai, Pei-Xin Huang, Ai-Wu Ke, Ying-Hong Shi, Jian Zhou, Jia Fan, Yi Chen, Liu-Xiao Yang, Guo-Ming Shi, Xiao-Yong Huang
Summary: The study found that in ICC tumors, CTLA-4(+) lymphocyte density was elevated compared to peritumoral hepatic tissues, and patients with high CTLA-4(+) tumor-infiltrating lymphocytes (TILs(CTLA-4 High)) had lower overall survival rates and higher cumulative recurrence rates. High FOXP3(+) TILs (TILs(FOXP3 High)) were associated with poorer prognoses, and the density of CTLA-4(+) TILs was positively correlated with FOXP3(+) TILs. High PD-L1 expression in tumors (Tumor(PD-L1 High)) and/or TILs(CTLA-4 High) were also linked to worse outcomes.
FRONTIERS IN IMMUNOLOGY
(2021)
Article
Pharmacology & Pharmacy
Li You, Xu Wang, Wenda Wu, Eugenie Nepovimova, Qinghua Wu, Kamil Kuca
Summary: Trichothecene mycotoxins have a strong immunosuppressive effect and are closely related to immune evasion mechanisms. Hypoxia and hypoxia-inducible factors (HIFs) play a key role in mediating trichothecenes. HIF-1 alpha inhibits T-2 toxin-mediated immune evasion process by negatively regulating PD-1/PD-L1 signaling.
Article
Biochemistry & Molecular Biology
Tomislav Ivanovic, Dorotea Bozic, Benjamin Benzon, Vesna Capkun, Katarina Vukojevic, Merica Glavina Durdov
Summary: Gastric cancer (GC) therapies include gastrectomy and chemoradiotherapy. The tumor immune microenvironment (TME) has implications for potential immunotherapy. We analyzed the expression of PD-L1, CD8, CTLA-4, and IFN-? in the tumor and regional lymph node (LN) of patients with GC and found correlations between PD-L1 expression and tumor type, CD8+ T cells, and macrophages, as well as between IFN-? expression and CTLA4(+) lymphocytes. Overall survival was negatively correlated with IFN-? expression in metastases. Rating: 8/10.
Article
Oncology
Baojuan Han, Lina Dong, Jing Zhou, Yan Yang, Jiaxun Guo, Qijia Xuan, Kun Gao, Zhenguo Xu, Wanting Lei, Jingxuan Wang, Qingyuan Zhang
Summary: This study investigated the clinical prognosis and biological function of plasma soluble programmed cell death ligand 1 in breast cancer patients. Results showed that high levels of sPD-L1 and visceral metastasis were independent factors associated with poor prognosis. Additionally, sPD-L1 was found to inhibit T lymphocyte function, playing a negative regulatory role in cellular immunity.
CANCER IMMUNOLOGY IMMUNOTHERAPY
(2021)
Article
Pharmacology & Pharmacy
Hatice Aygun
Summary: COVID-19 is a highly contagious viral infection that leads to lymphocyte depletion, particularly T cell depletion. The increase in inhibitory immune checkpoint molecules, PD-1/PD-L1, on T cell surfaces is associated with the destruction of T cells. Severely infected individuals have shown higher PD-1/PD-L1 levels, which are influenced by proinflammatory cytokines. Vitamin D supplementation can inhibit the increase of PD-L1 expression by reducing proinflammatory cytokine levels, leading to the prevention of lymphopenia and reduced disease severity and mortality in COVID-19 patients. Additionally, vitamin D supplementation can also reduce inflammation by increasing regulatory T cell activity.
NAUNYN-SCHMIEDEBERGS ARCHIVES OF PHARMACOLOGY
(2022)
Article
Hematology
Akio Onishi, Shigeo Fuji, Shigehisa Kitano, Akiko Miyagi Maeshima, Kinuko Tajima, Junko Yamaguchi, Ichiro Kawashima, Akihisa Kawajiri, Tomonari Takemura, Ayumu Ito, Takashi Tanaka, Keiji Okinaka, Yoshihiro Inamoto, Saiko Kurosawa, Sung-Won Kim, Wataru Munakata, Dai Maruyama, Kensei Tobinai, Takahiro Fukuda
Summary: This study aims to identify the association between the expression profile of immune checkpoint proteins on ATLL cells and clinical outcomes. The analysis shows that CTLA-4, PD-1, and PD-L1 expressions were adverse prognostic factors in patients with aggressive ATLL.
ANNALS OF HEMATOLOGY
(2022)
Article
Cell Biology
Qi Li, Simeng Wei, Yue Li, Fengjiao Wu, Xiaoling Qin, Zhongsha Li, Jingyu Li, Chang Chen
Summary: Blocking of PD-L1 promotes CD8+IFN-gamma+ T cell-mediated immune responses, exacerbating inflammation and increasing the burden of atherosclerosis under high-cholesterol diet. However, further studies are needed to explore whether PD-L1 activation could be a novel immunotherapy strategy for atherosclerosis.
INFLAMMATION RESEARCH
(2023)
Article
Multidisciplinary Sciences
Fabienne Mazerolles, Frederic Rieux-Laucat
Summary: The expression of co-signalling receptors on T cells plays a crucial role in regulating T cell responses, and an imbalance between activating and inhibitory signals may lead to autoimmunity. Research showed that activated TEFFs and TREGs express different co-signalling receptors, and the expression of PD-L1 on activated TEFFs is correlated with their proliferation.
Article
Immunology
Hannah E. Clapham, Isabel Rodriguez-Barraquer, Andrew S. Azman, Benjamin M. Althouse, Henrik Salje, Robert V. Gibbons, Alan L. Rothman, Richard G. Jarman, Ananda Nisalak, Butsaya Thaisomboonsuk, Siripen Kalayanarooj, Suchitra Nimmannitya, David W. Vaughn, Sharone Green, In-Kyu Yoon, Derek A. T. Cummings
JOURNAL OF INFECTIOUS DISEASES
(2016)
Editorial Material
Immunology
Alan L. Rothman, Francis A. Ennis
JOURNAL OF INFECTIOUS DISEASES
(2016)
Article
Immunology
Siripen Kalayanarooj, Alan L. Rothman, Anon Srikiatkhachorn
JOURNAL OF INFECTIOUS DISEASES
(2017)
Article
Virology
Vincent Barbier, Diane Lang, Sierra Valois, Alan L. Rothman, Carey L. Medin
Article
Immunology
Awadalkareem Adam, Marcia Woda, Sonia Kounlavouth, Alan L. Rothman, Richard G. Jarman, Josephine H. Cox, Julie E. Ledgerwood, Gregory D. Gromowski, Jeffrey R. Currier, Heather Friberg, Anuja Mathew
JOURNAL OF IMMUNOLOGY
(2018)
Article
Infectious Diseases
Sangshin Park, Anon Srikiatkhachorn, Siripen Kalayanarooj, Louis Macareo, Sharone Green, Jennifer F. Friedman, Alan L. Rothman
PLOS NEGLECTED TROPICAL DISEASES
(2018)
Article
Immunology
Aviva Geretz, Lauryn Cofer, Philip K. Ehrenberg, Jeffrey R. Currier, In-Kyu Yoon, Maria T. P. Alera, Richard Jarman, Alan L. Rothman, Rasmi Thomas
Article
Virology
Luis Alberto Sanchez Vargas, Anuja Mathew, Alan L. Rothman
CURRENT OPINION IN VIROLOGY
(2020)
Article
Biochemical Research Methods
Kathryn L. Schaber, T. Alex Perkins, Alun L. Lloyd, Lance A. Waller, Uriel Kitron, Valerie A. Paz-Soldan, John P. Elder, Alan L. Rothman, David J. Civitello, William H. Elson, Amy C. Morrison, Thomas W. Scott, Gonzalo M. Vazquez-Prokopec
Summary: The study shows the significant impact of different population behavior responses and activity reductions on the transmission and outbreak of DENV, leading to changes in transmission methods at the individual level and reducing the importance of transmission from the activity space outside symptomatic cases.
PLOS COMPUTATIONAL BIOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Christian K. Fung, Tao Li, Simon Pollett, Maria Theresa Alera, In-Kyu Yoon, Jun Hang, Louis Macareo, Anon Srikiatkhachorn, Damon Ellison, Alan L. Rothman, Stefan Fernandez, Richard G. Jarman, Irina Maljkovic Berry
Summary: This study investigated the consensus and iSNV frequency differences between DENV sequenced directly from clinical samples and their corresponding low-passage isolates. The results showed that low-passage DENV isolate consensus genomes are largely representative of their direct sample parental viruses, and that high frequency within-host variants are often preserved between clinical samples and isolates.
JOURNAL OF GENERAL VIROLOGY
(2021)
Review
Microbiology
Darshika J. Udawatte, Alan L. Rothman
Summary: RIPK1 serves as a key regulator of cell death and inflammation, affecting the outcome of virus infections through activation of different signaling pathways. Viruses manipulate host immune responses by targeting RIPK1, highlighting potential directions for future research.
Article
Infectious Diseases
Darunee Buddhari, Kathryn B. Anderson, Gregory D. Gromowski, Richard G. Jarman, Sopon Iamsirithaworn, Butsaya Thaisomboonsuk, Taweewun Hunsawong, Anon Srikiatkhachorn, Alan L. Rothman, Anthony R. Jones, Stefan Fernandez, Stephen J. Thomas, Timothy P. Endy
Summary: The study conducted in a dengue-endemic area in Thailand found that self-reported dengue illness history had low sensitivity and limited specificity compared to serological testing. This highlights the importance of a highly sensitive and specific test prior to Dengvaxia vaccination.
PLOS NEGLECTED TROPICAL DISEASES
(2021)
Article
Microbiology
Thanyalak Fansiri, Darunee Buddhari, Nattaphol Pathawong, Arissara Pongsiri, Chonticha Klungthong, Sopon Iamsirithaworn, Anthony R. Jones, Stefan Fernandez, Anon Srikiatkhachorn, Alan L. Rothman, Kathryn B. Anderson, Stephen J. Thomas, Timothy P. Endy, Alongkot Ponlawat
Summary: Individual houses with high risks of Dengue virus transmission may serve as a source of virus transmission in the neighborhood. Through entomological risk assessment at the household level, a higher DENV infection rate was detected in mosquito vectors, indicating a considerable risk of Dengue transmission within the community.
Article
Multidisciplinary Sciences
Angkana T. Huang, Saki Takahashi, Henrik Salje, Lin Wang, Bernardo Garcia-Carreras, Kathryn Anderson, Timothy Endy, Stephen Thomas, Alan L. Rothman, Chonticha Klungthong, Anthony R. Jones, Stefan Fernandez, Sopon Iamsirithaworn, Pawinee Doung-Ngern, Isabel Rodriguez-Barraquer, Derek A. T. Cummings
Summary: The mean age of dengue hemorrhagic fever (DHF) cases in Thailand has increased significantly from 1981 to 2017. This trend can be explained by various factors such as changes in population demographics, reduction in infection hazards, and heterogeneous reporting rates. The demographic transition plays a major role in this change, affecting both the age structure of susceptibility and the number of infectious individuals, leading to a continuing increase in the age of DHF cases.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Medical Laboratory Technology
Carey L. Medin, Alan L. Rothman
ARCHIVES OF PATHOLOGY & LABORATORY MEDICINE
(2017)