نتایج جستجو برای: abcb1

تعداد نتایج: 2444  

Journal: :Drug metabolism and disposition: the biological fate of chemicals 2009
Shuko Tachibana Kouichi Yoshinari Tsubasa Chikada Takayoshi Toriyabe Kiyoshi Nagata Yasushi Yamazoe

ABCB1 (P-glycoprotein) is an efflux transporter that limits the cellular uptake levels of various drugs in intestine, brain, and other tissues. The expression of human ABCB1 has recently been reported to be under the control of nuclear receptor NR1I subfamily members, pregnane X receptor (PXR, NR1I2) and constitutive androstane receptor (CAR, NR1I3). Here, we have investigated the involvement o...

2017
Yi-Jun Wang Bhargav A. Patel Nagaraju Anreddy Yun-Kai Zhang Guan-Nan Zhang Saeed Alqahtani Satyakam Singh Suneet Shukla Amal Kaddoumi Suresh V. Ambudkar Tanaji T. Talele Zhe-Sheng Chen

Multidrug resistance (MDR) attenuates the chemotherapy efficacy and increases the probability of cancer recurrence. The accelerated drug efflux mediated by ATP-binding cassette (ABC) transporters is one of the major MDR mechanisms. This study investigated if TTT-28, a newly synthesized thiazole-valine peptidomimetic, could reverse ABCB1-mediated MDR in vitro and in vivo. TTT-28 reversed the ABC...

2013
Megan R. Ansbro Suneet Shukla Suresh V. Ambudkar Stuart H. Yuspa Luowei Li

ABCB1, also known as P-glycoprotein (P-gp) or multidrug resistance protein 1 (MDR1), is a membrane-associated multidrug transporter of the ATP-binding cassette (ABC) transporter family. It is one of the most widely studied transporters that enable cancer cells to develop drug resistance. Reliable high-throughput assays that can identify compounds that interact with ABCB1 are crucial for develop...

Journal: :Neuron 2008
Manfred Uhr Alina Tontsch Christian Namendorf Stephan Ripke Susanne Lucae Marcus Ising Tatjana Dose Martin Ebinger Marcus Rosenhagen Martin Kohli Stefan Kloiber Daria Salyakina Thomas Bettecken Michael Specht Benno Pütz Elisabeth B. Binder Bertram Müller-Myhsok Florian Holsboer

The clinical efficacy of a systemically administered drug acting on the central nervous system depends on its ability to pass the blood-brain barrier, which is regulated by transporter molecules such as ABCB1 (MDR1). Here we report that polymorphisms in the ABCB1 gene predict the response to antidepressant treatment in those depressed patients receiving drugs that have been identified as substr...

2011
Pei-Rong Ding Amit K. Tiwari Shinobu Ohnuma Jeferson W. K. K. Lee Xin An Chun-Ling Dai Qi-Si Lu Satyakam Singh Dong-Hua Yang Tanaji T. Talele Suresh V. Ambudkar Zhe-Sheng Chen

One of the major causes of chemotherapy failure in cancer treatment is multidrug resistance (MDR) which is mediated by the ABCB1/P-glycoprotein. Previously, through the use of an extensive screening process, we found that vardenafil, a phosphodiesterase 5 (PDE-5) inhibitor significantly reverses MDR in ABCB1 overexpressing cancer cells, and its efficacy was greater than that of tadalafil, anoth...

2016
Géraldine Dessilly Nadtha Panin Laure Elens Vincent Haufroid Jean-Baptiste Demoulin

Overexpression of ABCB1 (also called P-glycoprotein) confers resistance to multiple anticancer drugs, including tyrosine kinase inhibitors (TKIs). Several ABCB1 single nucleotide polymorphisms affect the transporter activity. The most common ABCB1 variants are 1236C > T, 2677G > T, 3435C > T and have been associated with clinical response to imatinib in chronic myelogenous leukaemia (CML) in so...

Journal: :Molecular cancer therapeutics 2004
Zhenfeng Duan Katherine A Brakora Michael V Seiden

Ovarian cancer is currently the most lethal gynecologic malignancy in developed countries, and paclitaxel is a cornerstone in the treatment of this malignancy. Unfortunately, the efficacy of paclitaxel is limited by the development of drug resistance. Clinical paclitaxel resistance is often associated with ABCB1 (MDR1) overexpression, and in vitro paclitaxel resistance typically demonstrates ov...

2015
Jun Ma Jasmin Divers Nicholette D. Palmer Bruce A. Julian Ajay K. Israni David Schladt Stephen O. Pastan Kryt Chattrabhuti Michael D. Gautreaux Vera Hauptfeld Robert A. Bray Allan D. Kirk W. Mark Brown Robert S. Gaston Jeffrey Rogers Alan C. Farney Giuseppe Orlando Robert J. Stratta Meijian Guan Amudha Palanisamy Amber M. Reeves-Daniel Donald W. Bowden Carl D. Langefeld Pamela J. Hicks Lijun Ma Barry I. Freedman

Variants in donor multidrug resistance protein 1 (ABCB1) and caveolin 1 (CAV1) genes are associated with renal allograft failure after transplantation in Europeans. Here we assessed transplantation outcomes of kidneys from 368 African American (AA) and 314 European American (EA) deceased donors based on 38 single-nucleotide polymorphisms (SNPs) spanning ABCB1 and 16 SNPs spanning CAV1, includin...

Journal: :Journal of veterinary pharmacology and therapeutics 2009
J C Coelho R Tucker J Mattoon G Roberts D K Waiting K L Mealey

P-glycoprotein (P-gp), the product of ABCB1 gene, is thought to play a role in the biliary excretion of a variety of drugs, but specific studies in dogs have not been performed. Because a number of endogenous (ABCB1 polymorphisms) and exogenous (pharmacological P-gp inhibition) factors can interfere with normal P-gp function, a better understanding of P-gp's role in biliary drug excretion is cr...

Journal: :Oncology reports 2015
Jing Wen Tao Zhang Zhi-Ming Shan Min-Yue Qi Huan-Huan Xiu Lei Liu Shi-Zhe Wu Zhen Jia Kang-Qing Xu

Multidrug resistance (MDR) remains a formidable challenge in the use of chemotherapy and represents a powerful obstacle to the treatment of leukemia. ATP-binding cassette subfamily B member 1 (ABCB1) is a recognized factor which causes MDR and is closely related to poor outcome and relapse in leukemia. Ongoing research concerning the strategy for inhibiting the abnormally high activity of the A...

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