Results 51 to 60 of about 38,750 (255)

NAT10‐Mediated ac4C Modification of circANKRD12 Reprograms the Tumor Microenvironment

Advanced Science, EarlyView.
NAT10‐dependent acetylation of circANKRD12 drives translation of the circANKRD12_354aa protein, which binds HDAC2 to stabilize c‐Myc via deubiquitination, promoting multiple myeloma (MM) cell proliferation. Concurrently, the circANKRD12‐HDAC2 axis suppresses H3ac‐mediated transcription of IFN‐γ, TNF‐α, and GZMB in NK cells, leading to NK cell ...
Jiale Zhang, Hui Shi, Chen Wang, Zihao Liu, Lianxin Zhou, Xinyu Lv, Mengjie Guo, Ye Yang, Chunyan Gu   +8 more
wiley   +1 more source

Post‐Translational Isoaspartate Promotes Amyloid Formation in β2‐Microglobulin

Angewandte Chemie, EarlyView.
Chemical synthesis of five β2‐microglobulin (β2m) variants reveals the structural impact of Asn deamidation. By introducing Asp or isoAsp at susceptible Asn‐Gly sequences, we demonstrate that isoAsp17 formation specifically accelerates amyloid fibril formation, highlighting its potential contribution to dialysis‐related amyloidosis.
Ryuji Kawakami, Toshiki Takei, Masatomo So, Toshifumi Takao, Yoshinori Taguchi, Hironobu Hojo   +5 more
wiley   +2 more sources

A Novel Synthesis of the Efficient Anti-Coccidial Drug Halofuginone Hydrobromide

Molecules, 2017
Background: Halofuginone hydrobromide (1) is recognized as an effective drug against several species of Eimeria (E.) in poultry. In this paper, we describe a convenient and low cost preparation method for the compound, as well as primary validation of ...
Junren Zhang, Qizheng Yao, Zuliang Liu
doaj   +1 more source

High Free‐Volume Imidazole‐Based Ionomers for High‐Temperature Proton Exchange Membrane Fuel Cells

Advanced Science, EarlyView.
High free‐volume imidazole‐based ionomers (PF4IM‐72) enable enhanced phosphoric acid uptake and efficient proton transport, delivering peak power densities of 0.645 W cm−2 at 160 °C and 0.838 W cm−2 at 200 °C in HT‐PEMFCs. This work highlights a promising platform for next‐generation ionomers with improved high‐temperature performance and stability ...
Ge Chao, Hyeon Keun Cho, Chang Yeon Hyun, Shirong Li, Jong Geun Seong, So Young Lee, Nanwen Li, Young Moo Lee   +7 more
wiley   +1 more source

The crystal structures of 6′-(4-chlorophenyl)- and 6′-(4-methoxyphenyl)-6a′-nitro-6a′,6b′,7′,9′,10′,12a′-hexahydro-2H,6′H,8′H-spiro[acenaphthylene-1,12′-chromeno[3,4-a]indolizin]-2-one

Acta Crystallographica Section E: Crystallographic Communications, 2019
In the title compounds, C32H25ClN2O4 (I) and C33H28N2O5 (II), the six-membered pyran and piperidine rings adopt envelope and chair conformations, respectively. The five-membered pyrrolidine rings adopt twist conformations. Compound (II) crystallizes with
S. Syed Abuthahir, M. NizamMohideen, V. Viswanathan, D. Velmurugan, J. Nagasivarao   +4 more
doaj   +1 more source

Anticancer Applications and Pharmacological Properties of Piperidine and Piperine: A Comprehensive Review on Molecular Mechanisms and Therapeutic Perspectives

Frontiers in Pharmacology, 2022
Piperine and piperidine are the two major alkaloids extracted from black pepper (Piper nigrum); piperidine is a heterocyclic moiety that has the molecular formula (CH2)5NH.
Sicon Mitra, Uttpal Anand, Niraj Kumar Jha, Mahipal S. Shekhawat, Suchismita Chatterjee Saha, Potshangbam Nongdam, Kannan R. R. Rengasamy, Jarosław Proćków, Abhijit Dey   +8 more
doaj   +1 more source

AI‐Designed Cyclic Peptides Enable Controllable Modulation of the CD28 Immune Checkpoint

Advanced Science, EarlyView.
AI‐designed cyclic peptides enable controllable modulation of the CD28 immune checkpoint through reversible disruption of CD28‐CD80/CD86 interactions. The lead peptide, CIP‐3, suppresses T‐cell activation without intrinsic agonist activity, demonstrates dose‐dependent efficacy in a murine colitis model, and attenuates inflammatory cytokine production ...
Katarzyna Kuncewicz, Saurabh Upadhyay, Renjie Zhu, Hongliang Duan, Moustafa T. Gabr   +4 more
wiley   +1 more source

Excited‐State Pathway Switching via Reversible Structural Phase Transitions in Sb3+‐Doped Cadmium Halides

Angewandte Chemie, EarlyView.
Octahedral (DFPD)6CdCl8:10%Sb and tetrahedral (DFPD)2CdCl4·H2O:5%Sb exhibit distinct luminescence dictated by coordination geometry. Solvent‐induced reversible phase transformation enables dynamic switching between yellow and deep‐orange emission. Combined experimental and computational studies elucidate the luminescence mechanisms, and the reversible ...
Zhe Tang, Binbin Fan, Chenxin Fan, Qingfeng Wei, Dandan Luo, Tingting Xue, Yan Su, Junsheng Chen   +7 more
wiley   +2 more sources

Crystal structure of (4-chlorophenyl)(4-methylpiperidin-1-yl)methanone

Acta Crystallographica Section E: Crystallographic Communications, 2020
The title compound, C13H16ClNO, contains a methylpiperidine ring in the stable chair conformation. The mean plane of the twisted piperidine ring subtends a dihedral angle of 39.89 (7)° with that of the benzene ring.
J. Srividya, D. Reuben Jonathan, B. K. Revathi, M. Divya Bharathi, G. Anbalagan   +4 more
doaj   +1 more source

Synthetic route towards potential bivalent ligands possessing opioid and D2/D3 pharmacophores [PDF]

Journal of the Serbian Chemical Society, 2019
A scalable, cost-efficient and simple synthetic pathway towards potential bivalent opioid/dopamine receptor ligands was developed and optimized. Three novel compounds that contain both opioid and dopamine pharmacophores linked by the four methylene group
Jevtić Ivana I., Penjišević Jelena Z., Ivanović Milovan D., Kostić-Rajačić Slađana V.   +3 more
doaj   +1 more source