Results: 10

Knockout of caspase-7 gene improves the expression of recombinant protein in CHO cell line through the cell cycle arrest in G2/M phase

Biol. Res; 55 (), 2022
BACKGROUND: Chinese hamster ovary cell line has been used routinely as a bioproduction factory of numerous biopharmaceuticals. So far, various engineering strategies have been recruited to improve the production efficiency of this cell line such as apoptosis engineering. Previously, it is reported that t...

Knockdown of long non-coding RNA HOTAIR reverses cisplatin resistance of ovarian cancer cells through inhibiting miR-138-5p-regulated EZH2 and SIRT1

Biol. Res; 53 (), 2020
BACKGROUND: Cisplatin resistance (DDP-resistance) remains one of the major causes of poor prognosis in females with ovarian cancer. Long non-coding RNAs (lncRNAs) have been shown to participate in the regulation of cellular processes, including chemoresistance. The aim of this study was to explore the ro...

Quorum sensing LuxS/autoinducer-2 inhibits Enterococcus faecalis biofilm formation ability

J. appl. oral sci; 26 (), 2018
Abstract Objective: To investigate the relation between biofilm formation ability and quorum sensing gene LuxS/AI-2. Materials and Methods: Enterococcus faecalis (E. faecalis) standard strain ATCC 29212 was used in the study. Long flanking homology polymerase chain reaction method was used to build the...

RecET recombination system driving chromosomal target gene replacement in Zymomonas mobilis

Background: Zymomonas mobilis is a Gram-negative microaerophilic bacterium with excellent ethanol-producing capabilities. The RecET recombination system provides an efficient tool for direct targeting of genes in the bacterial chromosome by PCR fragments. Results: The plasmids pSUZM2a-RecET and pSUZM2a-R...

Construction of Mycobacterium tuberculosis cdd knockout and evaluation of invasion and growth in macrophages

Mem. Inst. Oswaldo Cruz; 112 (11), 2017
Cytidine deaminase (MtCDA), encoded by cdd gene (Rv3315c), is the only enzyme identified in nucleotide biosynthesis pathway of Mycobacterium tuberculosis that is able to recycle cytidine and deoxycytidine. An M. tuberculosis knockout strain for cdd gene was obtained by allelic replacement. Evaluation of ...

Knockout of p16INK4a promotes aggregative growth of dermal papilla cells

Summary Objective: Dermal papilla cells (DPCs) are located in the hair follicles and play an important role in hair growth. These cells have the ability to induce hair follicle formation when they display aggregative behavior. DPCs derived from the androgenetic alopecia (AGA) area undergo premature sene...

The virulence of Streptococcus pneumoniae partially depends on dprA

Braz. j. microbiol; 48 (2), 2017
Abstract Streptococcus pneumoniae is one of the most frequent opportunistic pathogens worldwide. DNA processing protein A (DprA) is an important factor involved in bacterial uptake and DNA integration into bacterial genome, but its role in S. pneumoniae virulence remains unclear. The aim of this study wa...

Characterisation of iunH gene knockout strain from Mycobacterium tuberculosis

Mem. Inst. Oswaldo Cruz; 112 (3), 2017
BACKGROUND Tuberculosis (TB) is an infectious disease caused mainly by the bacillus Mycobacterium tuberculosis. The better understanding of important metabolic pathways from M. tuberculosis can contribute to the development of novel therapeutic and prophylactic strategies to combat TB. Nucleoside hydrol...

RIC-8B, uma GEF de sistema olfatório, é essencial para o desenvolvimento do sistema nervoso

RIC-8B é um fator trocador de nucleotídeo de guanina (GEF) predominantemente expresso em neurônios olfatórios maduros de camundongos adultos. Trabalhos desenvolvidos em nosso laboratório mostraram que RIC-8B interage com Gαolf e Gγ13, duas subunidades de proteína G que estão enriquecidas nos cí...

RIC-8B, um fator trocador de nucleotídeo guanina (GEF), é essencial para a embriogênese

RIC-8B é uma proteína que apresenta, in vitro, atividade de fator de troca de nucleotídeos guanina (GEF). No entanto, seu papel in vivo não é conhecido. Dados anteriores do nosso laboratório demonstraram que essa proteína interage especificamente com Gαolf, que é uma proteína G exclusiva do sis...