Results 61 to 70 of about 32,646 (215)

Coupling of PARP1-mediated chromatin structural changes to transcriptional RNA polymerase II elongation and cotranscriptional splicing

Epigenetics & Chromatin, 2019
Background Recently, we showed that PARP1 is involved in cotranscriptional splicing, possibly by bridging chromatin to RNA and recruiting splicing factors.
Elena A. Matveeva, Qamar M. H. Al-Tinawi, Eric C. Rouchka, Yvonne N. Fondufe-Mittendorf   +3 more
doaj   +1 more source

Versatile Detection of Cellular Protein via Fluorescence Anisotropy

Advanced Science, EarlyView.
Cell Lysate Fluorescence Anisotropy (CFAST) utilizes long lifetime dye‐labeled nanobodies for rapid protein quantification in minimally purified, complex cell lysate. When coupled with cellular thermal shift, CFAST allows high‐throughput detection of endogenous protein‐small molecule engagement, facilitating the discovery of novel binders for ...
Qing Tang, Yuan‐Ping Wei, Ricky Ruiqi Ma, Na Wei, Tammy Zihan Zhou, Hilary Kung‐Yu Ho, Zafar Iqbal Bhat, Iqra Ishrat, Xiaoyu Li, Judy Wai Ping Yam, Yung Hou Wong, Qiankun Wang, Justin L. Tan   +12 more
wiley   +1 more source

Visualization of a DNA-PK/PARP1 complex [PDF]

Nucleic Acids Research, 2012
The DNA-dependent protein kinase (DNA-PK) and Poly(ADP-ribose) polymerase-1 (PARP1) are critical enzymes that reduce genomic damage caused by DNA lesions. They are both activated by DNA strand breaks generated by physiological and environmental factors, and they have been shown to interact.
Spagnolo L, Barbeau J, Curtin NJ, Morris EP, Pearl LH   +4 more
openaire   +4 more sources

Penfluridol Triggers GSDME‐Mediated Immunogenic Pyroptosis to Potentiate Antitumor Immunotherapy

Advanced Science, EarlyView.
A high‐throughput screen of FDA‐approved antipsychotics identifies penfluridol as a potent pyroptosis inducer acting via direct TTI1 inhibition. This triggers TNFA‐NFKB signaling and caspase‐8/‐3‐dependent GSDME cleavage. The compound stimulates antitumor immunity alone and synergizes with anti‐PD‐1 therapy, while low TTI1 expression emerges as a ...
Linfeng Li, Daishi Li, Danyao Chen, Yating Dian, Lei Yao, Hui Su, Ziyu Guo, Deze Zhao, Zihua Wu, Furong Zeng, Chunfang Zhang, Guangtong Deng   +11 more
wiley   +1 more source

Poly(ADP-ribose) polymerase 1 searches DNA via a ‘monkey bar’ mechanism

eLife, 2018
Poly(ADP-ribose) polymerase 1 (PARP1) is both a first responder to DNA damage and a chromatin architectural protein. How PARP1 rapidly finds DNA damage sites in the context of a nucleus filled with undamaged DNA, to which it also binds, is an unresolved ...
Johannes Rudolph, Jyothi Mahadevan, Pamela Dyer, Karolin Luger   +3 more
doaj   +1 more source

A Spatially Directed Microneedle Patch Enables Intratumoral Co‐Delivery of FOLFIRINOX, Surufatinib, and Anti‐PD‐1 for Chemo‐Immunotherapy of Pancreatic Ductal Adenocarcinoma

Advanced Science, EarlyView.
A double‐layered shell‐core microneedle patch is developed to co‐deliver FOLFIRINOX, surufatinib, and anti‐PD‐1 for localized chemo‐immunotherapy of PDAC. This strategy achieves sustained tumor suppression, reduces metastasis, and reprograms the TME by enhancing CD8+ T‐cell infiltration and inhibiting Tregs and M2 macrophages infiltration, while ...
Tingting Kong, Ximo Xu, Xiao Zhang, Chuntao Wu, Zhengjun Qiu, Beiyuan Hu, Zihao Qi, Qiang Tian, Yuqin Yang, Hanguang Dong, Fei Wu, Tuo Jin, Yan Zheng, Jiang Long   +13 more
wiley   +1 more source

Monitoring pharmacodynamic and molecular drug targets in liquid biopsy: Exploratory study in liver cancer with modelling of EGFR Receptor engagement

British Journal of Clinical Pharmacology, EarlyView.
Abstract Aim Liquid biopsy is minimally invasive (compared with tissue biopsy) and has previously been used to generate systems data regarding drug elimination via hepatic enzymes and transporters. This study extends quantitative assessment of systems parameters in liquid biopsy to pharmacodynamic (PD) and disease markers relevant to cancer development
Zubida M. Al‐Majdoub, Armin Sepp, Amin Rostami‐Hodjegan, Brahim Achour   +3 more
wiley   +1 more source

Vacancy defect‐induced electron homing breaks phosphodiester bonds for RNA depletion‐driven cancer therapy

BMEMat, EarlyView.
Illustration of 5% S‐vacancy Bi2S3 mediated phosphodiester bonds cleavage in RNA of hepatocellular carcinoma cells, which suppressing ERI3 expression, inhibiting cell proliferation and promoting apoptosis. Abstract Genome‐wide hypertranscription is a hallmark of malignant progression.
Chuncheng Yang, Zehao Shen, Guangming Xiang, Zhe Liu, Huaxin Liu, Jiabei Li, Ao Wang, Yelin Wu, Peiran Zhao, Xingwu Jiang, Jinghan Wang, Xiaoqing Jiang, Wenbo Bu   +12 more
wiley   +1 more source

Nucleosome unwrapping and PARP1 allostery drive affinities for chromatin and DNA breaks

Nature Communications
Poly(ADP-ribose) polymerase 1 (PARP1) detects DNA strand breaks that occur in duplex DNA and chromatin. Here, correlative optical tweezers and fluorescence microscopy reveal how single molecules of PARP1 identify single-strand breaks (i.e., nicks ...
Matthew A. Schaich, Tyler M. Weaver, Jennifer A. Rakowski, Vera Roginskaya, Liam P. Leary, Aafke A. Van den Berg, Janet H. Iwasa, Bret D. Freudenthal, Bennett Van Houten   +8 more
doaj   +1 more source

The Histone Methyltransferase SMYD2 Methylates PARP1 and Promotes Poly(ADP-ribosyl)ation Activity in Cancer Cells

Neoplasia: An International Journal for Oncology Research, 2014
Poly(ADP-ribose) polymerase-1 (PARP1) catalyzes the poly(ADP-ribosyl)ation of protein acceptors using NAD+ as the substrate is now considered as an important target for development of anticancer therapy. PARP1 is known to be post-translationally modified
Lianhua Piao, Daechun Kang, Takehiro Suzuki, Akiko Masuda, Naoshi Dohmae, Yusuke Nakamura, Ryuji Hamamoto   +6 more
doaj   +1 more source