Results 101 to 110 of about 221,142 (316)

CD4+ T Responses Other Than Th1 Type Are Preferentially Induced by Latency-Associated Antigens in the State of Latent Mycobacterium tuberculosis Infection

Frontiers in Immunology, 2019
Mycobacterium tuberculosis (M. tuberculosis) produces a diverse range of antigenic proteins in its dormant phase. The cytokine profiles of CD4+ T cell responses, especially subsets other than Th1 type (non-Th1 type), against these latency-associated M ...
Yoshiro Yamashita, Toshiyuki Oe, Kenji Kawakami, Mayuko Osada-Oka, Yuriko Ozeki, Kazutaka Terahara, Ikkoh Yasuda, Tansy Edwards, Takeshi Tanaka, Takeshi Tanaka, Yasuko Tsunetsugu-Yokota, Yasuko Tsunetsugu-Yokota, Sohkichi Matsumoto, Sohkichi Matsumoto, Koya Ariyoshi, Koya Ariyoshi   +15 more
doaj   +1 more source

CD4+ T cell epitopes of FliC conserved between strains of Burkholderia: implications for vaccines against melioidosis and cepacia complex in cystic fibrosis.

, 2014
Burkholderia pseudomallei is the causative agent of melioidosis characterized by pneumonia and fatal septicemia and prevalent in Southeast Asia. Related Burkholderia species are strong risk factors of mortality in cystic fibrosis (CF).
Nithichanon, Arnone, Lertmemongkolchai, Ganjana, Chu, Karen KY, Khaenam, Prasong, Rinchai, Darawan, Maillere, Bernard, Robinson, John H, Favry, Emmanuel, Bancroft, Gregory J, Reynolds, Catherine J, Altmann, Daniel M, Spink, Natasha, Boyton, Rosemary J, Musson, Julie A, De Soyza, Anthony   +14 more
core   +1 more source

Icariin Enhances the Enzymatic Activity of N‐acetylgalactosaminidase to Augment Akkermansia Abundance in Gut Microbiota for Improved PD‐1 Blockade Efficacy in Tumor Suppression

Advanced Science, EarlyView.
Icariin promoted the growth of Akk by enhancing the activity of N‐acetylgalactosaminidase (Amuc_0920), which enhanced mucin utilization and provided a favorable nutrient environment for bacterial growth. This icariin‐mediated enrichment of Akk further reshaped the tumor microenvironment and promoted CD8+ T cell infiltration, ultimately synergizing with
Shuangying Qiao, Liu Yang, Haibang Hao, Qiuxia Ding, Feng Ding, Zheng Chen, Jinfang Zhang, Yun He, Meng Li, Jun Xu, Chao Wang, Aiping Lu, Fangfei Li   +12 more
wiley   +1 more source

Mining the CD4 antigen repertoire for next-generation tuberculosis vaccines

Cell
Tuberculosis (TB) is the leading cause of death from infectious disease worldwide, and Bacillus Calmette-Guérin (BCG) remains the only clinically approved vaccine. An enduring challenge in TB vaccine development is systematic antigen selection from a large repertoire of potential candidates.
Samuel J. Vidal, Ninaad Lasrado, Lisa H. Tostanoski, Jayeshbhai Chaudhari, Esther R. Mbiwan, Ganad D. Neka, Ellis A. Strutton, Alejandro A. Espinosa Perez, Daniel Sellers, Julia Barrett, Michelle Lifton, Shoko Wakabayashi, Behnaz Eshaghi, Erica N. Borducchi, Malika Aid, Wenjun Li, Thomas J. Scriba, Ana Jaklenec, Robert Langer, Dan H. Barouch   +19 more
openaire   +2 more sources

Studies of suppression using monoclonal regulatory T cells and the importance of co-receptor Lck coupling ratios for negative selection [PDF]

, 2015
Normal physiology is not given without immunological tolerance. Depending on the origin of induction, tolerance can be divided into central and peripheral tolerance.
Gubser, Céline
core   +1 more source

O‐GlcNAcylated TAP1 Impairs Antigen Presentation and Promotes Immune Evasion in Bladder Cancer

Advanced Science, EarlyView.
This article unveils a critical mechanism of immune evasion in bladder cancer, which the O‐GlcNAc modification of TAP1 disrupts antigen presentation. This modification triggers HLA‐A degradation, shielding tumor cells from CD8+ T cell attack. The findings highlight targeting this pathway as a promising therapeutic avenue to sensitize tumors to ...
Jinpeng Wu, Xueting Ren, Zhen Zhai, Lu Wang, Liang Liang, Zengqi Tan, Jiazhen Zhao, Yuxuan Han, Yuhan Li, Feng Guan, Xiang Li   +10 more
wiley   +1 more source

Distinct effects on diversifying selection by two mechanisms of immunity against Streptococcus pneumoniae.

PLoS Pathogens, 2012
Antigenic variation to evade host immunity has long been assumed to be a driving force of diversifying selection in pathogens. Colonization by Streptococcus pneumoniae, which is central to the organism's transmission and therefore evolution, is limited ...
Yuan Li, Todd Gierahn, Claudette M Thompson, Krzysztof Trzciński, Christopher B Ford, Nicholas Croucher, Paulo Gouveia, Jessica B Flechtner, Richard Malley, Marc Lipsitch   +9 more
doaj   +1 more source

Antigen Recognition By Autoreactive Cd4+ Thymocytes Drives Homeostasis Of The Thymic Medulla

PLoS ONE, 2012
The thymic medulla is dedicated for purging the T-cell receptor (TCR) repertoire of self-reactive specificities. Medullary thymic epithelial cells (mTECs) play a pivotal role in this process because they express numerous peripheral tissue-restricted self-antigens.
Irla, Magali, Guerri, Lucia, Guenot, Jeanne, Sergé, Arnauld, Lantz, Olivier, Liston, Adrian, Imhof, Beat, Palmer, Ed, Reith, Walter   +8 more
openaire   +8 more sources

Endogenous human cytomegalovirus gB is efficiently presented by MHC class II molecules to CD4+ CTL

, 2005
Human cytomegalovirus (HCMV) infects endothelial, epithelial, and glial cells in vivo. These cells can express MHC class II proteins, but are unlikely to play important roles in priming host immunity.
Nelson, JA, Dunn, C, Johnson, DC, Hegde, NR, Lewinsohn, DM, Jarvis, MA   +5 more
core  

Tumor‐Derived Alpha‐1 Antitrypsin Promotes Liver Metastasis of Colorectal Cancer Through the Neutrophil Extracellular Traps–CCDC25 Pathway

Advanced Science, EarlyView.
ABSTRACT Liver metastasis is a leading cause of mortality in colorectal cancer (CRC), where the inflammatory tumor microenvironment, specifically neutrophil infiltration, significantly promotes metastatic colonization. This study reveals a pro‐metastatic role for alpha‐1 antitrypsin (A1AT) in CRC liver metastasis via a dual mechanism involving ...
Qian Fei, Chunning Li, Lei Zhan, Xiaoyan Li, Yan Hui, Yue Jin, Jing Zhang, Lu Yang, Xin Sun, Xiaoxi Li, Qian Dong, Jingdong Zhang   +11 more
wiley   +1 more source