Results 61 to 70 of about 24,740 (216)

Study on immortalization of Mongolian sheep fibroblast cells

Animal Biotechnology
This study aims to establish an immortalized fibroblast cell line from Mongolian sheep. Primary Mongolian sheep fibroblasts (SSF) were isolated using tissue explant and enzymatic digestion methods, followed by microscopic observation, growth curve ...
Bin. Liu, Shichao. Wang, Fanhua. Meng, Bei. Wu, Yanru Zhang, Junwei. Cao   +5 more
doaj   +1 more source

Designer Dynamic DNA Nanoaggregate in Living Cell for Mitochondrial Energy Restriction

Advanced Science, EarlyView.
This study presents the Tech‐tetrahedron, a designer dynamic DNA nanoaggregate engineered for precise mitochondrial energy restriction. Its trinity‐functionalized design integrates navigable unit, telomerase‐activated latch, and self‐assembly module.
Ruijia Deng, Jing Sheng, Ben Niu, Wenjuan Fu, Yingjie Yang, Zuowei Xie, Shuang Xie, Yunxuan He, Meilin Gong, Jue Wang, Yan Pi, Ming Chen, Kai Chang   +12 more
wiley   +1 more source

Structures of nucleotide-bound human telomerase at several steps of its telomeric DNA repeat addition cycle

Nature Communications
In most eukaryotes, the reverse transcriptase telomerase counteracts telomere shortening by processively adding telomeric DNA repeat sequences to chromosome ends.
Sebastian Balch, Elsa Franco-Echevarría, George E. Ghanim, Rachael C. Kretsch, Rhiju Das, Thi Hoang Duong Nguyen   +5 more
doaj   +1 more source

Telomerase promoter mutations in human immunodeficiency virus-related conjunctiva neoplasia

Journal of Translational Medicine, 2018
Background Squamous cell carcinoma (SCC) of the conjunctiva is a common cancer in Africa mainly associated with solar ultraviolet (UV) exposure and human immunodeficiency virus (HIV) infection.
Noemy Starita, Luigi Buonaguro, Franco M. Buonaguro, Maria Lina Tornesello   +3 more
doaj   +1 more source

Long Noncoding RNA H19 Mediates STAT3‐Dependent Activation of Keratinocytes and Fibroblasts in Systemic Sclerosis Skin

Arthritis &Rheumatology, EarlyView.
Objective Dermal systemic sclerosis (SSc) fibroblasts and their exosomes can activate keratinocytes in SSc, with long noncoding RNA (lncRNA) H19 highlighted as the most up‐regulated RNA in their cargo compared with healthy controls (HCs). The role of H19 in SSc pathogenesis has never been investigated.
Begoña Caballero‐Ruiz, Christopher W. Wasson, Rebecca L. Ross, Francesco Del Galdo   +3 more
wiley   +1 more source

Tumor-Specific Expression Detected with the Use of an Expression Vector Driven by Human Telomerase Reverse Transcriptase Gene Promoter

, 2004
To construct the tumor-specific expression vector driven by human telomerase reserve transcriptase gene promoter, we amplified a fragment of the enhanced green fluorescent protein (EGFP) gene from the pEGFP-N 1 plasmid and cloned it into the multiple ...
Xiu RJ, Xiu, RJ (reprint author), Peking Union Med Coll, Chinese Acad Med Sci, Inst Microcirculat, Beijing 100005, Peoples R China., 靳刚, Wang XB, Fu PF, Yin JJ   +5 more
core   +1 more source

The ageing holobiont: crosstalk between telomere dynamics, oxidative stress and the gut microbiome

Biological Reviews, EarlyView.
ABSTRACT The gut tissue is at the frontline of early onset of ageing. It exhibits high cell turnover rates and rapid telomere shortening, which can have systemic effects on the developing or senescing organism. We conducted a literature review of studies on the crosstalk between telomere length dynamics, telomerase activity, oxidative stress, and gut ...
Michael L. Pepke, Søren B. Hansen, Morten T. Limborg   +2 more
wiley   +1 more source

Immunohistochemical Detection of Telomerase (hTERT) Protein in Human Cancer Tissues and a Subset of Cells in Normal Tissues

Neoplasia: An International Journal for Oncology Research, 2001
We examined human telomerase reverse transcriptase (hTERT) protein distribution by immunohistochemistry in cultured cells and tissue sections. Cells with telomerase activity had nuclear positive signals whereas cells without telomerase activity did not ...
Eiso Hiyama, Keiko Hiyama, Takashi Yokoyama, Jerry W. Shay   +3 more
doaj   +1 more source

Oocyte–cumulus cell interaction: a key factor in early embryo development

Biological Reviews, EarlyView.
ABSTRACT The evaluation of oocyte competence is a fundamental step in achieving successful outcomes following assisted reproduction techniques (ART). At present, however, conventional oocyte maturation assessment is carried out by morphological observation, which is a subjective method that does not consider molecular features.
Marc Torres‐Garrido, Marc Yeste, Yentel Mateo‐Otero   +2 more
wiley   +1 more source

Cancer-associated TERT promoter mutations abrogate telomerase silencing

eLife, 2015
Mutations in the human telomerase reverse transcriptase (TERT) promoter are the most frequent non-coding mutations in cancer, but their molecular mechanism in tumorigenesis has not been established.
Kunitoshi Chiba, Joshua Z Johnson, Jacob M Vogan, Tina Wagner, John M Boyle, Dirk Hockemeyer   +5 more
doaj   +1 more source