Results 21 to 30 of about 48,373 (242)

Identification by enzyme immunoassay of escape mutants S143L and G145R of hepatitis B virus (Hepadnaviridae: Orthohepadnavirus: Hepatitis B virus)

Вопросы вирусологии, 2022
Introduction. The achievement of the goal of the World Health Organization to eliminate viral hepatitis B by 2030 seems to be problematic partly due to the presence of escape mutants of its etiological agent, hepatitis B virus (HBV) (iHepadnaviridae ...
M. V. Konopleva, A. A. Feldsherova, D. A. Elgort, T. A. Tupoleva, N. A. Kokhanovskaya, V. N. Pankratova, T. A. Semenenko, A. P. Suslov   +7 more
doaj   +1 more source

SOX5 Orchestrates Malignant Evolution via Promoter‐Centric Chromatin Remodeling in MYC‐Driven B‐Cell Lymphoma

Advanced Science, EarlyView.
In MYC‐enforced B‐cell lymphoma, SOX5 occupies promoter‐proximal regulatory regions and is associated with reduced chromatin accessibility at the PCNP locus. PCNP repression promotes proliferative remodeling by limiting apoptosis and cell‐cycle restraint.
Yiyou Mao, Zhenyuan Jia, Xiao‐Qin Mu, Ruilin Wang, Jianli Ma, Qingyuan Zhang, Yuwei Deng   +6 more
wiley   +1 more source

Seroprevalence of Hepatitis B Virus in Pregnant Women at a Tertiary Care Hospital of Eastern India [PDF]

National Journal of Laboratory Medicine, 2016
Introduction: Hepatitis B virus is a DNA virus causing hepatitis in humans. It is thought to be responsible for chronic liver diseases in 75% of cases. Besides other routes, vertical transmission from mother to child is an important one.
Archana Sinha, Minu Sharan, S.K. Shahi
doaj   +1 more source

HBsAg sT123N mutation induces stronger antibody responses to HBsAg and HBcAg and accelerates in vivo HBsAg clearance

Virus Research, 2015
Immune escape mutants with mutations in the hepatitis B surface antigen (HBsAg) major hydrophilic region (MHR) often emerge in association with diagnostic failure or breakthrough of HBV infection in patients with anti-HBs antibodies. Some mutants harboring substitutions to Asn in HBsAg MHR may have an additional potential N-glycosylation site.
Li, Songxia, Zhao, Kaitao, Liu, Shuhui, Wu, Chunchen, Yao, Yongxuan, Cao, Liang, Hu, Xue, Zhou, Yuan, Wang, Yun, Pei, Rongjuan, Lu, Mengji, Chen, Xinwen   +11 more
openaire   +2 more sources

Chronic HBV Infection Disrupts CCL5‐Secreting cNK Cells and Attenuates Liver Accumulation and Activation of DCs and HBV‐Specific T Cells

Advanced Science, EarlyView.
ADORA2A activation suppresses NFκB‐dependent CCL5 production in cNK cells during chronic HBV infection, disrupting intrahepatic DC recruitment and HBV‐specific CD8+ T‐cell differentiation and function. Targeting the ADORA2A/NFκB/CCL5 axis restores antiviral immunity and facilitates HBV clearance.
Ailu Yang, Yucan Wang, Yating Yu, Jing Wu, Cuiping Bao, Zixuan Wang, Qiuju Han, Zhigang Tian, Jian Zhang, Huajun Zhao   +9 more
wiley   +1 more source

A Personalized Haplotype‐Resolved Near‐Gapless Genome Framework for Somatic Variant Discovery in Hepatocellular Carcinoma

Advanced Science, EarlyView.
A patient‐specific, haplotype‐resolved genome framework improves detection and interpretation of somatic variants in hepatocellular carcinoma. Using multi‐platform sequencing, the personalized assembly resolves complex regions including centromeres and MHC/HLA loci, enhances structural variant discovery, and links regulatory alterations to allele ...
Jiazheng Lin, Yao Xiao, Shuangzi Luo, Yifan Li, Wenfei Zhang, Xiaoyu Zhang, Xinyi Wang, Di Wu, Jieru Hong, Yongkun Luan, Xun Huang, Yixiu Wang, Ningbo Wu, Xiaoxiao Hu, Fei Zhao, Wei Li, Xiao Luo, Bi Shi   +17 more
wiley   +1 more source

A Synthetic Platform for Antibody Junctional Diversification Beyond Natural Constraints

Advanced Science, EarlyView.
ARESEC is a synthetic platform that reconstructs functional V(D)J recombination in HEK293T cells. By introducing RSS elements and co‐expressing RAG1/2 and TdT across all three antibody CDRs, it enables programmable junctional diversification and direct generation of high‐affinity variants targeting PD‐1/PD‐L1, overcoming the evolutionary constraints of
Wang Liu, Jun Yang, Yuhang Zhang, Xiaoli Xue   +3 more
wiley   +1 more source

Preoperative FIB‐4 Index as a Potential Factor Associated With Severe Postoperative Complications and Endogenous Organ Failure After Hepatectomy for Hepatocellular Carcinoma

Annals of Gastroenterological Surgery, EarlyView.
This study demonstrates that a preoperative FIB‐4 index ≥ 5.0 independently predicts severe complications and endogenous organ failure (EOF) following hepatectomy for hepatocellular carcinoma. By capturing structural liver fragility and systemic vulnerability, the FIB‐4 index enhances surgical risk stratification beyond traditional functional markers ...
Masanori Nakamura, Yukiyasu Okamura, Osamu Aramaki, Nao Yoshida, Yusuke Mitsuka, Hayato Abe, Shunsuke Yamagishi, Yasuhiro Okumura, Kyongsun Pak, Shinobu Masuda   +9 more
wiley   +1 more source

Exposition of hepatitis B surface antigen (HBsAg) on the surface of HEK293T cell and evaluation of its expression

Research in Pharmaceutical Sciences, 2016
Hepatitis B virus (HBV) is considered as a global health concern and hepatitis B surface antigen (HBsAg) is the most immunogenic protein of HBV. The purpose of this study was to evaluate the expression of HBsAg on the cell surface of human embryonic ...
Mina Mirian, Razieh Taghizadeh, Hossein Khanahmad, Mansour Salehi, Ali Jahanian-Najafabadi, Hojjat Sadeghi-aliabadi, Shirin Kouhpayeh   +6 more
doaj   +1 more source

Gating strategy for plasmablast enumeration after hepatitis B vaccination

Медицинская иммунология, 2021
B cell stimulation develops upon vaccination, thus causing occurrence of activated B cells (plasmoblasts) in bloodstream. Similar cells are also observed in some viral infections. The contents of plasmablasts may be a marker of successful vaccination, or
M. G. Byazrova, A. P. Toptygina, T. A. Mitina, A. V. Filatov   +3 more
doaj   +1 more source