Results 51 to 60 of about 448,616 (266)

How to recover from a bad start: adaptation of HIV-1 transcription start site mutants during serial passaging in culture

Journal of Virology
HIV-1 uses neighboring sequences as transcription start sites and generates multiple unspliced transcripts, including two major transcripts with three guanosines (3G) or one guanosine (1G) at the 5′ end. Although only differing by 2-nt, 3G RNA and 1G RNA
Olga A. Nikolaitchik, Akhil Chameettachal, Saiful Islam, Zetao Cheng, Krista Delviks-Frankenberry, Brandon F. Keele, Vinay K. Pathak, Wei-Shau Hu   +7 more
doaj   +1 more source

Influenza Virus Exploits an Interferon-Independent lncRNA to Preserve Viral RNA Synthesis through Stabilizing Viral RNA Polymerase PB1

Cell Reports, 2019
Summary: Long noncoding RNAs (lncRNAs) participate in host antiviral defense by modulating immune responses. However, it remains largely unexplored how viruses exploit interferon (IFN)-independent host lncRNAs to facilitate viral replication.
Jing Wang, Yongxin Zhang, Quanjie Li, Jianyuan Zhao, Dongrong Yi, Jiwei Ding, Fei Zhao, Siqi Hu, Jinming Zhou, Tao Deng, Xiaoyu Li, Fei Guo, Chen Liang, Shan Cen   +13 more
doaj   +1 more source

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

Molecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang, Ayesha Alvero, Yi Qin, Mingjin Wang, Alexandra Fox, Yanfeng Li, Michael Millman, Amy Kemper, Gil Mor, Xian Shuang Liu, Michael Chopp, Zheng Gang Zhang, Yi Zhang   +12 more
wiley   +1 more source

The N-Terminal of Aquareovirus NS80 Is Required for Interacting with Viral Proteins and Viral Replication. [PDF]

PLoS ONE, 2016
Reovirus replication and assembly occurs within viral inclusion bodies that formed in specific intracellular compartments of cytoplasm in infected cells.
Jie Zhang, Hong Guo, Qingxiu Chen, Fuxian Zhang, Qin Fang   +4 more
doaj   +1 more source

IMPDH inhibition enhances cytarabine efficacy in SAMHD1‐expressing leukaemia cells via guanine nucleotide depletion

Molecular Oncology, EarlyView.
Cytarabine is a key therapy for acute myeloid leukaemia (AML), but its efficacy is limited by the dNTPase SAMHD1, which hydrolyses its active metabolite. Screening nucleotide biosynthesis inhibitors revealed that IMPDH inhibitors selectively sensitise SAMHD1‐proficient AML cells to cytarabine.
Miriam Yagüe‐Capilla, Christopher Dirks, Caroline Eiden, Sonja K. Fesenmayer, Femke M. Hormann, Yolande Klootsema, Ingrid Lilienthal, Si Min Zhang, Nikolas Herold, Sean G. Rudd   +9 more
wiley   +1 more source

HIV-1 uncoating location dictates sites of integration

Nature Communications
HIV-1 cores enter the nucleus and undergo capsid disassembly (uncoating) near their integration site. Although most viral cores are localized to nuclear speckles (NSs), the spatial relationship between the uncoating site and integration site remains ...
Ryan C. Burdick, Sean C. Patro, Ellie Bare, Rokeya Siddiqui, Krista A. Delviks-Frankenberry, Olga A. Nikolaitchik, Stephen H. Hughes, Xiaolin Wu, Wei-Shau Hu, Vinay K. Pathak   +9 more
doaj   +1 more source

Discontinuous template switching generates coronavirus subgenomic RNAs from the 3ʹ viral genome end by 5ʹ to 3ʹ transcription

Journal of Virology
In coronavirus (CoV)-infected cells, several structural and accessory proteins are synthesized from subgenome RNAs (sgRNA) containing a common genomic 5ʹ-leader followed by a given open reading frame (ORF).
Ayslan Castro Brant, Zhe Hu, Angelika Zelma Chen, Vladimir Majerciak, Jonathan Yewdell, Zhi-Ming Zheng   +5 more
doaj   +1 more source

CCDC80 suppresses high‐grade serous ovarian cancer migration via negative regulation of B7‐H3

Molecular Oncology, EarlyView.
PAX8 is a lineage‐specific master regulator of transcription in high‐grade serous ovarian cancer (HGSC) progression. We show for the first time that PAX8 facilitates proliferation and metastasis by repressing the cell autonomous tumor suppressor CCDC80 and inducing B7‐H3 expression.
Aya Saleh, Nitzan Medina‐Itzhaki, Milena Chekov, Eden Gal‐Swisa, Roba Gabesh‐Wahabi, Inbar Savyon, Inna Naroditsky, Hilary A. Kenny, Basem Fares, Lina Korsensky, Einav Girsh, Liron Berger, Ruth Perets   +12 more
wiley   +1 more source

Lenacapavir-induced lattice hyperstabilization is central to HIV-1 capsid failure at the nuclear pore complex and in the cytoplasm

eLife
Lenacapavir (LEN) is the first human immunodeficiency virus type 1 (HIV-1) capsid inhibitor approved for clinical use in humans. It inhibits multiple steps of the viral life cycle; however, the molecular details of the effect of LEN on capsid structure ...
Arpa Hudait, Ryan C Burdick, Ellie K Bare, Vinay K Pathak, Gregory A Voth   +4 more
doaj   +1 more source

Defining the minimal components of the influenza A virus replication machinery via an in vitro reconstitution system.

PLoS Biology, 2023
During influenza A virus infection, the viral RNA polymerase transcribes the viral negative-sense segmented RNA genome and replicates it in a two-step process via complementary RNA within viral ribonucleoprotein (vRNP) complexes. While numerous viral and
Zihan Zhu, Haitian Fan, Ervin Fodor
doaj   +1 more source