Results 81 to 90 of about 399,425 (291)

RFWD3 Reprograms Nucleotide Metabolism Through PHGDH to Induce Chemoresistance In Osteosarcoma

Advanced Science, EarlyView.
RFWD3 is identified as a key regulator of cisplatin (DDP) sensitivity in osteosarcoma using a genome‐wide CRISPR screen. RFWD3 promotes PHGDH ubiquitination, enhancing NAD+‐mediated nucleotide biosynthesis. Knocking out RFWD3 sensitized osteosarcoma cells to DDP.
Wenchao Zhang, Chi Yin, Lin Qi, Zhongyue Liu, Ruiling Xu, Chao Tu, Zhihong Li   +6 more
wiley   +1 more source

Drogas anti-VIH: passado, presente e perspectivas futuras Drugs anti-HIV: past, present and future perspectives

Química Nova, 2003
Currently available anti-HIV drugs can be classified into three categories: nucleoside analogue reverse transcriptase inhibitors (NRTIs), non-nucleoside reverse transcriptase inhibitors (NNRTIs) and protease inhibitors (PIs).
Marcus Vinícius Nora de Souza, Mauro Vieira de Almeida   +1 more
doaj   +1 more source

The Super Enhancer‐Driven Long Noncoding RNA PRKCQ‐AS1 Promotes Neuroblastoma Tumorigenesis by Interacting With MSI2 Protein and Is Targetable by Small Molecule Compounds

Advanced Science, EarlyView.
PRKCQ‐AS1 is overexpressed due to transcriptional super‐enhancers. PRKCQ‐AS1 RNA forms a complex with MSI2 protein to induce BMX mRNA stabilization and overexpression, ERK protein phosphorylation and neuroblastoma cell proliferation. Compound NSC617570 blocks PRKCQ‐AS1 binding to MSI2, leading to BMX mRNA disassociation from MSI2 protein, BMX reduction,
Sujanna Mondal, Pei Y. Liu, Janith Seneviratne, Antoine De Weck, Pooja Venkat, Chelsea Mayoh, Jing Wu, Jesper Maag, Jingwei Chen, Matthew Wong, Nenad Bartonicek, Poh Khoo, Lei Jin, Louise E. Ludlow, David S. Ziegler, Toby Trahair, Pieter Mestdagh, Belamy B. Cheung, Jinyan Li, Marcel E. Dinger, Ian Street, Xu D. Zhang, Glenn M. Marshall, Tao Liu   +23 more
wiley   +1 more source

Effect of Different Batch Size Parameters on Predicting of COVID19 Cases [PDF]

arXiv, 2020
The new coronavirus 2019, also known as COVID19, is a very serious epidemic that has killed thousands or even millions of people since December 2019. It was defined as a pandemic by the world health organization in March 2020. It is stated that this virus is usually transmitted by droplets caused by sneezing or coughing, or by touching infected ...
arxiv  

Tumor Microenvironment On‐A‐Chip and Single‐Cell Analysis Reveal Synergistic Stromal–Immune Crosstalk on Breast Cancer Progression

Advanced Science, EarlyView.
Using a 3D tumor microenvironment (TME)‐on‐a‐chip model, tumor–stromal–immune crosstalk in triple‐negative breast cancer is studied, revealing the TME's combinatorial effect on cancer progression. Integrating single‐cell transcriptomic analysis demonstrates metabolic reprogramming via the kynurenine pathway, highlighting the complex TME cellular ...
Kalpana Ravi, Yining Zhang, Lydia Sakala, Twinkle Jina Minette Manoharan, Barbara Pockaj, Joshua LaBaer, Jin G. Park, Mehdi Nikkhah   +7 more
wiley   +1 more source

Sperm‐Derived CircRNA‐1572 Regulates Embryogenesis and Zygotic Genome Activation by Targeting CCNB2 via Bta‐miR‐2478‐L‐2

Advanced Science, EarlyView.
Sperm‐derived circRNA‐1572 competitively binds to bta‐miR‐2478‐L‐2 through a “sponge” mechanism to regulate cyclin B2 (CCNB2) expression, thereby modulating the distribution of fibrous actin (F‐actin) in early pig embryos, ensuring proper chromosome segregation during mitosis, and facilitating normal embryo cleavage and zygotic genome activation.
Yanfang Wu, Yaochang Wei, Yuelin Li, Yiming Dou, YongQiang Yang, Hanghang Liu, Xiaoyan Wang, Zheng Wang, Jianmin Su, Yong Zhang, Yongsheng Wang   +10 more
wiley   +1 more source

Full-Length cDNA Synthesis for Long-Distance RT-PCR of Large mRNA Transcripts

BioTechniques, 2003
Reverse transcription of mRNA often leads to the synthesis of partial, non-fulllength cDNAs. Methods to facilitate reverse transcription across RNA regions of secondary structure, as well as enzyme modifications to eliminate RNase H activities inherent ...
Phillip R. Hawkins, Pei Jin, Glenn K. Fu
doaj   +1 more source

Nuclear Translocation of S100A9 Triggers Senescence of Human Amnion Fibroblasts by De‐Repressing LINE1 Via Heterochromatin Erosion at Parturition

Advanced Science, EarlyView.
This study shows that the classical secretory protein S100 calcium‐binding protein A9 (S100A9) can translocate to the nucleus upon de‐phosphorylation at Thr 113 in human amnion fibroblasts at parturition, where S100A9 induces heterochromatin erosion through segregation of the heterochromatin maintenance protein, resulting inLong Interspersed Nuclear ...
Fan Zhang, Meng‐Die Li, Fan Pan, Wen‐Jia Lei, Yang Xi, Li‐Jun Ling, Leslie Myatt, Kang Sun, Wang‐Sheng Wang   +8 more
wiley   +1 more source

Using the Honey Bee (Apis mellifera L.) Cell Line AmE‐711 to Evaluate Insecticide Toxicity

Environmental Toxicology and Chemistry, Volume 42, Issue 1, Page 88-99, January 2023., 2023
Abstract One of the main contributors to poor productivity and elevated mortality of honey bee colonies globally is insecticide exposure. Whole‐organism and colony‐level studies have demonstrated the effects of insecticides on many aspects of honey bee biology and have also shown their interactions with pathogens.
Michael Goblirsch, John J. Adamczyk
wiley   +1 more source

Residue profile in predivergence sequences as a guide to the origin of DNA replication [PDF]

arXiv, 1999
DNA dependent RNA polymerase core subunits abb' conserved residues at frequencies most closely matched with codons at stage 10.4-11.1 in code evolution. An excess of acidic residues (stage 2 additions) lowered this estimate, but not by more than 2.3 stages.
arxiv