Results 31 to 40 of about 43,494 (228)

Mitochondria-Targeted Delivery of Camptothecin Based on HPMA Copolymer for Metastasis Suppression

Pharmaceutics, 2022
Poor anti-metastasis effects and side-effects remain a challenge for the clinical application of camptothecin (CPT). Mitochondria can be a promising target for the treatment of metastatic tumors due to their vital roles in providing energy supply ...
Xiaoli Yi, Yue Yan, Xinran Shen, Lian Li, Yuan Huang   +4 more
doaj   +1 more source

Irinotecan Hydrochloride (CPT-11) in Dialysis Patients with Gastrointestinal Cancer [PDF]

, 2010
We investigated changes in drug disposition and toxicities with CPT-11 in 15 dialysis patients with gastrointestinal cancers to clarify whether CPT-11 could be administered safely in such patients.
Akashi, Isao, Ashizawa, Tatsuto, Hama, Kouichirou, Hirano, Toshihiko, Iwahori, Tohru, Iwamoto, Hitoshi, Jyojima, Yoshimaro, Kihara, Yuu, Konnno, Osamu, Nagao, Takeshi, Nakamura, Yuuki, Segawa, Mai, Takeuchi, Hironori, Yokoyama, Takayoshi   +13 more
core   +1 more source

Camptothecin Delivery via Tumor-Derived Exosome for Radiosensitization by Cell Cycle Regulation on Patient-Derived Xenograft Mice

Frontiers in Bioengineering and Biotechnology, 2022
Purpose: While radiotherapy remains the leading clinical treatment for many tumors, its efficacy can be significantly hampered by the insensitivity of cells in the S phase of the cell cycle to such irradiation.Methods: Here, we designed a highly targeted
Yiling Yang, Shiqi Ren, Wenpeng Huang, Jiahan Dong, Jiancheng Guo, Jie Zhao, Yonggao Zhang   +6 more
doaj   +1 more source

Injectable hyaluronic acid hydrogels encapsulating drug nanocrystals for long‐term treatment of inflammatory arthritis

Bioengineering & Translational Medicine, 2022
Antiproliferative chemotherapeutic agents offer a potential effective treatment for inflammatory arthritis. However, their clinical application is limited by high systemic toxicity, low joint bioavailability as well as formulation challenges.
Yongsheng Gao, Douglas Vogus, Zongmin Zhao, Wei He, Vinu Krishnan, Jayoung Kim, Yujie Shi, Apoorva Sarode, Anvay Ukidve, Samir Mitragotri   +9 more
doaj   +1 more source

TDP1 deficiency sensitizes human cells to base damage via distinct topoisomerase I and PARP mechanisms with potential applications for cancer therapy [PDF]

, 2013
Base damage and topoisomerase I (Top1)-linked DNA breaks are abundant forms of endogenous DNA breakage, contributing to hereditary ataxia and underlying the cytotoxicity of a wide range of anti-cancer agents.
Alagoz, Boyd, Breslin, Caldecott, Chen, Chiang, Ciccia, Dalhus, Das, Demple, Dungey, El-Khamisy, Fu, Godon, Hecht, Hegde, Hudson, Interthal, Interthal, Kato, Katyal, Kummar, Lebedeva, Lindahl, Lindahl, Liu, Loeb, Luo, Madhusudan, Meisenberg, Meryem Alagoz, Mohammed, Morland, Murai, Murai, Nilsen, Owen S. Wells, Pommier, Pourquier, Povirk, Ray Chaudhuri, Rydberg, Sherif F. El-Khamisy, Strom, Sultana, Takashima, Wilson, Xanthoudakis, Yang, Zeng, Zhou   +50 more
core   +1 more source

Supplementary data for the quantum chemical calculation of free radical substitution reaction mechanism of camptothecin

Data in Brief, 2018
This data article contains the truncated view of the transition states for methyl radical attacking camptothecin at the site of 9, 10, 11, 12 and 14 in acidic conditions obtained from quantum computation of Gaussian 09 with B3LYP/6–31+G(d,p) level, also ...
Yujie Dai, Qingyuan Hua, Jun Ling, Chunfu Shao, Cheng Zhong, Xiuli Zhang, Yanying Hu, Liming Zhang, Yaotian Liu   +8 more
doaj   +1 more source

TDP1/TOP1 ratio as a promising indicator for the response of small cell lung cancer to topotecan [PDF]

, 2014
BACKGROUND AND OBJECTIVE Small cell lung cancer (SCLC) is one of the most challenging tumors to treat due to high proliferation rate, early metastatic dissemination and rapid development of chemotherapy resistance.
El-Khamisy, Sherif F, Meisenberg, Cornelia, Schmid, Peter, Ward, Simon E   +3 more
core   +3 more sources

DNA Topoisomerase 1 Structure-BASED Design, Synthesis, Activity Evaluation and Molecular Simulations Study of New 7-Amide Camptothecin Derivatives Against Spodoptera frugiperda

Frontiers in Chemistry, 2018
Camptothecin and its derivatives (CPTs) have strong toxicity to eukaryotic cells by targeting their DNA topoisomerase 1 (Top1) protein and have been increasingly explored as potential pesticides for plant protection.
Zhiyan Jiang, Zhijun Zhang, Gaofeng Cui, Zhipeng Sun, Gaopeng Song, Yingqian Liu, Guohua Zhong   +6 more
doaj   +1 more source

Distinct requirements for the Rad32(Mre¹¹) nuclease and Ctp1(CtIP) in the removal of covalently bound topoisomerase I and II from DNA [PDF]

, 2009
For a cancer cell to resist treatment with drugs that trap topoisomerases covalently on the DNA, the topoisomerase must be removed. In this study, we provide evidence that the Schizosaccharomyces pombe Rad32Mre11 nuclease activity is involved in the ...
Akamatsu, Antony M. Carr, Baldwin, Champoux, Connelly, Connelly, Edgar Hartsuiker, El-Khamisy, Farah, Gutz, Hartsuiker, Hopfner, Hopfner, Keeney, Keeney, Krogh, Krogh, Lengsfeld, Limbo, Liu, Malik, Matthew J. Neale, McKee, Miyoshi, Moreau, Neale, Nitiss, Osheroff, Porter, Pouliot, Prinz, Sartori, Shaw, Stracker, Subramanian, Takashima, Tomita, Utsugi, Young   +38 more
core   +2 more sources

Independence from kinetoplast DNA maintenance and expression is associated with multi-drug resistance in Trypanosoma brucei in vitro [PDF]

, 2014
It is well known that several antitrypanosomatid drugs accumulate in the parasite's mitochondrion, where they often bind to the organellar DNA, the kinetoplast.
A. Schnaufer, Agbe, Bruhn, Brun, Cristodero, Dean, Deterding, Herbert, Hoare, Holmes, Kaminsky, Lai, Lanteri, M. K. Gould, Mathis, Mukherjee, Painter, Priest, Roy Chowdhury, Räz, Schnaufer, Schnaufer, Schnaufer, Shapiro, Stuart, Tang, Thuita, Ward, Wenzler, Wenzler, Wilson, Zhang, Zuma   +32 more
core   +1 more source