Zhongguo Fei Ai Za Zhi
November 2024
Lung cancer is one of the most malignant tumor, representing a significant threat to human health. In China, its mortality rate is the highest among all malignant tumors. The occurrence of drug resistance has resulted in unfavourable prognosis for patients with lung cancer, and overcoming drug resistance is a significant challenge that needs to be addressed.
View Article and Find Full Text PDFThe gene family represents a widely distributed class of plant transcription factors. This gene family plays an important role in many aspects of plant growth and development. However, the characterization of genes present in the genome of has not been reported.
View Article and Find Full Text PDFA stable genetic transformation system for Erigeron breviscapus was developed. We cloned the EbYUC2 gene and genetically transformed it into Arabidopsis thaliana and E. breviscapus.
View Article and Find Full Text PDFBackground: Panax notoginseng (Burk) F. H. Chen is one of the most famous Chinese traditional medicinal plants.
View Article and Find Full Text PDFCucurbitacin IIa is a triterpenoid isolated exclusively from Hemsleya plants and a non-steroidal anti-inflammatory drug that functions as the main ingredient of prescription Hemslecin capsules and tablets in China. Synthetic biology provides new strategies for production of such valuable cucurbitacins at a large scale; however, the biosynthetic pathway of cucurbitacin IIa has been unknown, and the heterologous production of cucurbitacins in galactose medium has been expensive and low yielding. In this study, we characterized the functions of genes encoding two squalene epoxidases (HcSE1-2), six oxidosqualene cyclases (HcOSC1-6), two CYP450s (HcCYP87D20 and HcCYP81Q59), and an acyltransferase (HcAT1) in cucurbitacin IIa biosynthesis by heterologous expression in Saccharomyces cerevisiae and Nicotiana benthamiana.
View Article and Find Full Text PDFBergenin is a typical carbon glycoside and the primary active ingredient in antitussive drugs widely prescribed for central cough inhibition in China. The bergenin extraction industry relies on the medicinal plant species and as their resources. However, the bergenin biosynthetic pathway in plants remains elusive.
View Article and Find Full Text PDFTumor-associated macrophages (TAMs) mainly exhibit the characteristics of M2-type macrophages, and the regulation of TAM polarization is a new target for cancer therapy, among which lncRNAs are key regulatory molecules. This study aimed to explore the effects of lncRNA-HOXC-AS2 on non-small cell lung cancer (NSCLC) by regulating TAM polarization. THP-1 cells were used to differentiate into macrophages, and TAMs were obtained by coculture with A549 cells.
View Article and Find Full Text PDFThe prognosis for advanced melanoma (AM) is extremely poor. Some patients are already in an advanced stage at the time of their first diagnosis and face a significant risk of early death. This study predicted all-cause early death and cancer-specific early death in patients with AM by identifying independent risk factors, building 2 separate nomogram models, and validating the efficiency of the models.
View Article and Find Full Text PDFMitochondrial DNA B Resour
January 2023
(Mader 1933; Coleoptera: Coccinellidae) is an important economically and scientifically valuable insect. In this study, the first complete mitochondrial genome of was sequenced and characterized using next-generation sequencing techniques. The circular mitogenome of consists of 17,347 bp including 13 protein-coding genes (PCGs), 22 transfer RNA (tRNA) genes, two ribosomal RNA (rRNA) genes, and a control region (D-loop).
View Article and Find Full Text PDFMarsdenia tenacissima is a medicinal plant widely distributed in the calcium-rich karst regions of southwest China. However, the lack of a reference genome has hampered the implementation of molecular techniques in its breeding, pharmacology and domestication. We generated the chromosome-level genome assembly in Apocynaceae using combined SMRT sequencing and Hi-C.
View Article and Find Full Text PDFcontains an abundance of dammarane-type ginsenosides and gypenosides that exhibit extensive pharmacological activities. Increasing attention has been paid to the elucidation of cytochrome P450 monooxygenases (s) and UDP-dependent glycosyltransferases (s) that participate downstream of ginsenoside biosynthesis in the genus. However, information on oxidosqualene cyclases (), the upstream genes responsible for the biosynthesis of different skeletons of ginsenoside and gypenosides, is rarely reported.
View Article and Find Full Text PDFZhongguo Zhong Yao Za Zhi
December 2021
R2 R3-MYB transcription factors are ubiquitous in plants, playing a role in the regulation of plant growth, development, and secondary metabolism. In this paper, the R2 R3-MYB transcription factors were identified by bioinformatics analysis of the genomic data of Erigeron breviscapus, and their gene sequences, structures, physical and chemical properties were analyzed. The functions of R2 R3-MYB transcription factors were predicted by cluster analysis.
View Article and Find Full Text PDFTwo UDP-glycosyltransferases from Panax japonicus var. major were identified, and the biosynthetic pathways of three oleanane-type ginsenosides (chikusetsusaponin IVa, ginsenoside Ro, zingibroside R) were elucidated. Chikusetsusaponin IVa and ginsenoside Ro are primary active components formed by stepwise glycosylation of oleanolic acid in five medicinal plants of the genus Panax.
View Article and Find Full Text PDFErigeron breviscapus is an important medicinal plant in Compositae and the first species to realize the whole process from the decoding of the draft genome sequence to scutellarin biosynthesis in yeast. However, the previous low-quality genome assembly has hindered the optimization of candidate genes involved in scutellarin synthesis and the development of molecular-assisted breeding based on the genome. Here, the E.
View Article and Find Full Text PDFHuan Jing Ke Xue
February 2020
Coastal wetland, at the intersection of land and sea, is considered as a "sink", "source", and "transformer" of phosphorus (P). Coastal wetland plays an important role in the global P cycle, and its ability to retain excessive P in water receives increasing attention. In this study, the coastal reed wetland sediments surrounding the Bohai Sea were sampled to investigate P adsorption capacity and loss risk by conducting batch experiments.
View Article and Find Full Text PDFPhotonic detection with narrow spectrum selectivity is very important to eliminate the signal from obtrusive light, which can improve the anti-interference ability of the infrared imaging system. While the self-driving effect inherent to the p-n junction is very attractive in optic-electronic integration, the application of the p-n junction in narrow-band photodetectors is limited by the usual broad absorption range. In this work, a self-powered filterless narrowband near-infrared photodetector based on CuGaTe/silicon p-n junction was reported.
View Article and Find Full Text PDFInt J Mol Sci
February 2020
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View Article and Find Full Text PDFOrthoptera is the most diverse order of polyneopterans, and the forewing and hindwing of its members exhibit extremely variability from full length to complete loss in many groups; thus, this order provides a good model for studying the effects of insect flight ability on the evolutionary constraints on and evolutionary rate of the mitochondrial genome. Based on a data set of mitochondrial genomes from 171 species, including 43 newly determined, we reconstructed Orthoptera phylogenetic relationships and estimated the divergence times of this group. The results supported Caelifera and Ensifera as two monophyletic groups, and revealed that Orthoptera originated in the Carboniferous (298.
View Article and Find Full Text PDFBackground: Taproot thickening is a complex biological process that is dependent on the coordinated expression of genes controlled by both environmental and developmental factors. Panax notoginseng is an important Chinese medicinal herb that is characterized by an enlarged taproot as the main organ of saponin accumulation. However, the molecular mechanisms of taproot enlargement are poorly understood.
View Article and Find Full Text PDFCopper is an indispensable trace element for human health. Too much or too little intake of copper ion (Cu ) can lead to its own adverse health conditions. Therefore, detection of Cu is always of vital importance.
View Article and Find Full Text PDFIn this study, we sequenced the complete mitogenome of Falco amurensis (Falconiformes, Falconidae). The F. amurensis mitogenome is 17,464 bp long, and contains 37 genes, including 13 protein-coding genes (PCGs), two rRNAs, 22 tRNAs, and two non-coding regions (control region and pseudo-control region).
View Article and Find Full Text PDFCurr Opin Chem Biol
October 2018
Synthetic biology has been revolutionizing the biopharmaceutical industry from drug discovery, clinical development to the manufacturing of biopharmaceuticals. As one of its most promising areas, genetic incorporation of noncanonical amino acids (ncAA) into proteins via an expanded genetic code emerged with great promise in the pharmaceutical industry recently with multiple therapeutic candidates tested in human clinical trials and one approved veterinary drug. Expanded building blocks enable proteins to have new or modified functions, providing ample opportunities for innovative or improved medicines.
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