38,523 results match your criteria: "National Institute of Genetic Engineering & Biotechnology[Affiliation]"

This research presents an innovative genetic transformation protocol for marigolds ( L.), a species of great significance in floriculture, impacting both yield and quality. The study introduces seed priming technology as a novel approach and evaluates its effect on the germination rate.

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The aim of this work was to explore the bioactive properties of leaves (Baker f.) Cufod. Methanol and ethanol extracts showed the highest antioxidant activity with the lowest IC values.

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Background: The presence of predominantly headless sperm in semen is a hallmark of acephalic spermatozoa syndrome, which is primarily caused by gene mutations in humans.

Purpose: To identify genetic causes for acephalic spermatozoa syndrome.

Methods: Polymerase chain reaction and Sanger sequencing were performed to define mutations in SUN5 and PMFBP1.

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Multienzyme Cascade Synthesis of Rare Sugars From Glycerol in Bacillus subtilis.

Biotechnol J

December 2024

Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, Jiangnan University, Wuxi, Jiangsu, China.

Background: Rare sugars are valuable and unique monosaccharides extensively utilized in the food, cosmetics, and pharmaceutical industries. Considering the high purification costs and the complex processes of enzymatic synthesis, whole-cell conversion has emerged as a significantly important alternative. The Escherichia coli strain was initially used in whole-cell synthesis of rare sugars.

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Ribosome engineering of Myxococcus xanthus for enhancing the heterologous production of epothilones.

Microb Cell Fact

December 2024

State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao, 266237, People's Republic of China.

Background: Ribosome engineering is a semi-empirical technique used to select antibiotic-resistant mutants that exhibit altered secondary metabolism. This method has been demonstrated to effectively select mutants with enhanced synthesis of natural products in many bacterial species, including actinomycetes. Myxobacteria are recognized as fascinating producers of natural active products.

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Background: Caryophyllaceae contains 100 genera and 3000 species, many of which are valuable both ecologically and economically. However, as past research has shown, the fundamental phylogenetic relationships of Caryophyllaceae are still debatable, and molecular dating based on chloroplast genomes has not been thoroughly examined for the entire family.

Methods: In this study, the complete chloroplast genome sequences of Arenaria kansuensis Maxim.

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Background: Rice is the main food crop for much of the population in China. Therefore, selecting and breeding new disease resistance and drought tolerance in rice is essential to ensure national food security. The utilization of heterosis has significantly enhanced rice productivity, yet many of the molecular mechanisms underlying this phenomenon remain largely unexplored.

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The development of ground-breaking Survival Motor Neuron (SMN) replacement strategies has revolutionized the field of Spinal Muscular Atrophy (SMA) research. However, the limitations of these therapies have now become evident, highlighting the need for the development of complementary targets beyond SMN replacement. To address these challenges, here we explored, in in vitro and in vivo disease models, Stathmin-2 (STMN2), a neuronal microtubule regulator implicated in neurodegenerative diseases like Amyotrophic Lateral Sclerosis (ALS), as a novel SMN-independent target for SMA therapy.

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Establishment and Characterization of Bisexually Fertile Triploid Dwarf Surf Clam Mulinia lateralis.

Mar Biotechnol (NY)

December 2024

MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China.

Triploids are widely used to rapidly achieve genetic improvements of organisms due to their fast growth and enhanced environmental adaptability. Artificially induced triploids are generally considered to be infertile owing to the obvious inhibition of gonadal development. Recently, some fertile individuals with reduced advantages have been found in triploid bivalves, which is a notable deviation from the original intention of artificially inducing triploids.

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HSP90 stabilizes visual cycle retinol dehydrogenase 5 in the endoplasmic reticulum by inhibiting its degradation during autophagy.

J Biol Chem

December 2024

The Laboratory of Ophthalmology and Vision Science, Department of Ophthalmology, The Joint National Laboratory of Antibody Drug Engineering, Henan Province Engineering Research Center of Fundus Disease and Ocular Trauma Prevention and Treatment, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, China; Henan International Joint Research Laboratory for Ocular Immunology and Retinal Injury Repair, Zhengzhou, China; Kaifeng Key Lab for Cataracts and Myopia, Kaifeng Central Hospital, Kaifeng, China; Eye Institute, Henan Academy of Innovations in Medical Science, Zhengzhou, China. Electronic address:

Genetic mutations in retinol dehydrogenase 5 (RDH5), a rate-limiting enzyme of the visual cycle, is associated with nyctalopia, AMD and stationary congenital fundus albipunctatus (FA). A majority of these mutations impair RDH5 protein expression and intracellular localization. However, the regulatory mechanisms underlying RDH5 metabolism remain unclear.

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Toxoplasmosis is a foodborne zoonotic parasitic disease caused by Toxoplasma gondii, which seriously threatens to human health and causes economic losses. At present, there is no effective vaccine strategy for the prevention and control of toxoplasmosis. T.

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ConoDL: a deep learning framework for rapid generation and prediction of conotoxins.

J Comput Aided Mol Des

December 2024

Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, China.

Conotoxins, being small disulfide-rich and bioactive peptides, manifest notable pharmacological potential and find extensive applications. However, the exploration of conotoxins' vast molecular space using traditional methods is severely limited, necessitating the urgent need of developing novel approaches. Recently, deep learning (DL)-based methods have advanced to the molecular generation of proteins and peptides.

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In the past decade, there has been an emerging gap between the demand and supply of vegetable oils globally for both edible and industrial use. Lipids are important biomolecules with enormous applications in the industrial sector and a major source of energy for animals and plants. Hence, to elevate the lipid content through metabolic engineering, new strategies have come up for triacylglycerol (TAG) accumulation and in raising the lipid or oil yield in crop plants.

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Lipidomics-driven drug discovery and delivery strategies in glioblastoma.

Biochim Biophys Acta Mol Basis Dis

December 2024

Department of Chemistry and Biochemistry, California State University Fullerton, Fullerton, CA 92831, United States. Electronic address:

With few viable treatment options, glioblastoma (GBM) is still one of the most aggressive and deadly types of brain cancer. Recent developments in lipidomics have demonstrated the potential of lipid metabolism as a therapeutic target in GBM. The thorough examination of lipids in biological systems, or lipidomics, is essential to comprehending the changed lipid profiles found in GBM, which are linked to the tumor's ability to grow, survive, and resist treatment.

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Spike-wave-discharges (SWD) are the electrophysiological hallmark of absence epilepsy. SWD are generated in the thalamo-cortical network and a seizure onset zone was identified in the somatosensory cortex (S1). We have shown before that inhibition of the centromedian thalamic nucleus (CM) in GAERS rats resulted in a selective suppression of the spike component while rhythmic cortical 5-9 Hz oscillations remained present.

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In vivo self-assembled siRNAs within small extracellular vesicles attenuate LRRK2-induced neurodegeneration in Parkinson's disease models.

J Control Release

December 2024

Nanjing Drum Tower Hospital Center of Molecular Diagnostic and Therapy, State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute of Life Sciences (NAILS), School of Life Sciences, Nanjing University, Nanjing, Jiangsu 210023, China; The Second People's Hospital of Changzhou, The Third Affiliated Hospital of Nanjing Medical University, Changzhou Medical Center, Nanjing Medical University, Changzhou, Jiangsu 213003, China. Electronic address:

Rationale: Mutations in the leucine-rich repeat kinase 2 (LRRK2) gene play an important role in Parkinson's disease (PD) pathogenesis, and downregulation of LRRK2 has become a promising therapy for PD. Here, we developed a synthetic biology strategy for the self-assembly and delivery of small interfering RNAs (siRNAs) of LRRK2 into the substantia nigra via small extracellular vesicles (sEVs) using a genetic circuit (in the form of naked DNA plasmid) to attenuate PD-like phenotypes in mouse model.

Methods: We generated the genetic circuit encoding both a neuron-targeting rabies virus glycoprotein (RVG) tag and a LRRK2 siRNA under the control of a cytomegalovirus (CMV) promoter, and assessed its therapeutic effects using LRRK2 mouse models of PD.

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Multimodal tumor suppression by METTL3 gene knockdown in melanoma and colon cancer cells.

Histochem Cell Biol

December 2024

Department of Stem Cells and Regenerative Medicine, Institute for Medical Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Pajoohesh Blvd., P.O. Box 14965-161, Tehran, Iran.

METTL3, an m6A methyltransferase, is integral to the regulation of messenger RNA (mRNA) biogenesis, degradation, and translation through the N6-methyladenosine (m6A) modification. Alterations in m6A homeostasis have been implicated in the development, progression, invasion, and metastasis of certain cancers. The present research aims to examine the consequences of METTL3 knockdown using short hairpin RNA (shRNA) on the proliferation and invasive capabilities of human colorectal and melanoma cancer cell lines.

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Histatin 5 (Hst5) is a 24-amino-acid peptide naturally present in human saliva that has been proposed as a potential antifungal therapeutic. However, Hst5 is susceptible to degradation by secreted aspartyl proteases (Saps) produced by Candida albicans, which could limit its efficacy as a therapeutic. To better understand the role of the lysine residues of Hst5 in proteolysis by C.

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The functional specialization of CD4 T lymphocytes into various subtypes, including T1 and T cells, is crucial for effective immune responses. T cells facilitate B cell differentiation within germinal centers, while T1 cells are vital for cell-mediated immunity against intracellular pathogens. Integrin α4, a cell surface adhesion molecule, plays significant roles in cell migration and co-stimulatory signaling.

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Environmental Control of Queuosine Levels in Streptococcus mutans tRNAs.

Mol Microbiol

December 2024

Department of Microbiology and Cell Science, IFAS, University of Florida, Gainesville, Florida, USA.

Queuosine (Q) is a modification of the wobble base in tRNAs that decode NA(C/U) codons. It is ubiquitous in bacteria, including many pathogens. Streptococcus mutans is an early colonizer of dental plaque biofilm and a key player in dental caries.

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Expression of nicastrin, NICD1, and Hes1 in NCSTN knockout mice: implications for hidradenitis suppurativa, Alzheimer's, and liver cancer.

Eur J Med Res

December 2024

Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Henan University People's Hospital, No. 7 Weiwu, Zhengzhou, 450003, Henan, China.

Background: Nicastrin, a subunit of the γ-secretase complex, is encoded by the NCSTN gene and regulates notch signaling, it is involved in the pathogenesis of hidradenitis suppurativa (HS), Alzheimer disease (AD), and liver cancer. However, the animal models for studying HS are relatively scarce.

Methods: CRISPR/Cas-mediated genetic engineering was used to generate targeted knockout offspring mice (C57BL/6J).

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Doublecortin regulates the mitochondrial-dependent apoptosis in glioma via Rho-A/Net-1/p38-MAPK signaling.

Mol Med

December 2024

Department of Neurobiology and Anatomy, Key Laboratory of Neurobiology, Xuzhou Medical University, 209, Tongshan Road, Xuzhou, 221004, China.

Doublecortin (DCX) is a microtubule-associated protein known to be a key regulator of neuronal migration and differentiation during brain development. However, the role of DCX, particularly in regulating the survival and growth of glioma cells, remains unclear. In this study, we utilized CRISPR/Cas9 technology to knock down DCX in the human glioma cell line (U251).

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A spontaneously immortalized muscle stem cell line (EfMS) from brown-marbled grouper for cell-cultured fish meat production.

Commun Biol

December 2024

MOE Key Laboratory of Marine Genetics & Breeding and College of Marine Life Sciences, Ocean University of China, Qingdao, China.

Lacking of suitable fish muscle stem cell line has greatly hindered the fabrication of cell-cultured fish meat. Here, we established and characterized a spontaneously immortalized marine fish muscle stem cell line (EfMS) from brown-marbled grouper (Epinephelus fuscoguttatus), which could actively proliferate with good genetic stability and well maintain the stemness of myogenesis potential for over 50 passages. Taurine was found to be able to serve as a substitute of fish muscle extract in maintaining stemness.

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Shaping resilience: The critical role of plant response regulators in salinity stress.

Biochim Biophys Acta Gen Subj

December 2024

National Agri-Food and Biomanufacturing Institute, Mohali, Punjab 140306, India; Stress Physiology and Molecular Biology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India. Electronic address:

Background: Salinity stress affects plant growth, development, biomass, yield, as well as their survival. A series of signaling cascade is activated to cope the deleterious effect of salinity stress. Cytokinins are known for their regulatory roles from cell growth and expansion to abiotic stress signaling.

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The pine wood nematode (PWN), , is one of the most serious invasive forest pests, responsible for pine wilt disease (PWD). Currently, there are no effective, environmentally friendly control methods available. RNA interference (RNAi) technology has been extensively utilized to screen functional genes in eukaryotes and to explore sustainable pest management approaches through genetic engineering.

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