Protein Information

Name multidrug resistance protein 1
Synonyms ABC20; MDR1; ABCB 1; ABCB1; ATP binding cassette sub family B member 1; CD243; CD243 antigen; CLCS…

Compound Information

Name sodium arsenite
CAS sodium arsenenite

Reference List

PubMed Abstract RScore(About this table)
10814809 Eufemia NA, Epel D: Induction of the multixenobiotic defense mechanism (MXR), P-glycoprotein, in the mussel Mytilus californianus as a general cellular response to environmental stresses. Aquat Toxicol. 2000 May 1;49(1-2):89-100.

In this study, we report on the specificity of the induction of the transporter by various chemical and physical stressors. p-gp substrates (including the pesticides pentachlorophenol and chlorthal) as well as non-substrates (including DDE and sodium arsenite) induced p-gp activity and protein titer in the gill tissues of the mussel Mytilus californianus.
85(1,1,1,5) Details
1967174 Chin KV, Tanaka S, Darlington G, Pastan I, Gottesman MM: Heat shock and arsenite increase expression of the multidrug resistance (MDR1) gene in human renal carcinoma cells. J Biol Chem. 1990 Jan 5;265(1):221-6.

The levels of the multidrug transporter, P-glycoprotein, as measured by immunoprecipitation, were also increased after heat shock and sodium arsenite treatment.
42(0,1,2,7) Details
1360409 Kioka N, Yamano Y, Komano T, Ueda K: Heat-shock responsive elements in the induction of the multidrug resistance gene (MDR1). FEBS Lett. 1992 Apr 13;301(1):37-40.

We investigated MDR1 gene expression in the well-differentiated hepatoma cell line HepG2 after exposure to several stresses and found that sodium arsenite treatment increased MDR1 gene expression 2.6-fold.
9(0,0,1,4) Details
8556709 Kim SH, Lee SH, Kwak NH, Kang CD, Chung BS: Effect of the activated Raf protein kinase on the human multidrug resistance 1 (MDR1) gene promoter. Cancer Lett. 1996 Jan 2;98(2):199-205.

We observed that the activated Raf significantly potentiated the induction of MDRCAT activity in GHE-L cells by sodium arsenite or heat shock, which stimulates heat shock factor (HSF) binding to HSE.
6(0,0,0,6) Details
9873828 Kim SH, Yeo GS, Lim YS, Kang CD, Kim CM, Chung BS: Suppression of multidrug resistance via inhibition of heat shock factor by quercetin in MDR cells. Exp Mol Med. 1998 Jun 30;30(2):87-92.

MDR1 promoter has been shown to contain heat shock elements (HSE), and it has been reported that FM3A/M and P388/M MDR cells show a constitutively activated heat shock factor (HSF), suggesting that HSF might be an important target for reversing the multidrug resistance.
In this study, quercetin appeared to inhibit the constitutive HSF DNA-binding activity and the sodium arsenite-induced HSF DNA-binding activity in the MDR cells.
3(0,0,0,3) Details
11750083 Liu J, Liu Y, Powell DA, Waalkes MP, Klaassen CD: Multidrug-resistance mdr1a/1b double knockout mice are more sensitive than wild type mice to acute arsenic toxicity, with higher arsenic accumulation in tissues. Toxicology. 2002 Jan 15;170(1-2):55-62.

Our recent work shows that acquired arsenic resistance is associated with overexpression of P-glycoprotein and can be reversed by PSC833, an inhibitor for P-glycoprotein.
The mdr1a/1b (-/-) and wild-type FVB mice were given arsenic as sodium arsenite (12-19 mg/kg, sc) and toxicity was examined 24 h later.
3(0,0,0,3) Details
8098523 Grondin K, Papadopoulou B, Ouellette M: Homologous recombination between direct repeat sequences yields P-glycoprotein containing amplicons in arsenite resistant Leishmania. Nucleic Acids Res. 1993 Apr 25;21(8):1895-901.

At least two loci derived from the same 800 kb chromosome were amplified either as extrachromosomal circles or linear fragments after sodium arsenite selection.
3(0,0,0,3) Details
11278867 Ito K, Olsen SL, Qiu W, Deeley RG, Cole SP: Mutation of a single conserved tryptophan in multidrug resistance protein 1 (MRP1/ABCC1) results in loss of drug resistance and selective loss of organic anion transport. J Biol Chem. 2001 May 11;276(19):15616-24. Epub 2001 Feb 21.

In contrast, resistance to sodium arsenite was only partially diminished, and resistance to potassium antimony tartrate remained comparable to that of cells expressing wild-type MRP1.
2(0,0,0,2) Details
11408547 Vernhet L, Seite MP, Allain N, Guillouzo A, Fardel O: Arsenic induces expression of the multidrug resistance-associated protein 2 (MRP2) gene in primary rat and human hepatocytes. J Pharmacol Exp Ther. 2001 Jul;298(1):234-9.

Metals, such as arsenic or cadmium, have recently been demonstrated to interact with metabolic pathways, including phase I and phase II enzymes and the phase III efflux pump P-glycoprotein.
Treatment of primary rat hepatocytes by sodium arsenite [As (III)], sodium arsenate and potassium antimony tartrate, but not cadmium chloride, was shown to markedly increase MRP2 mRNA and protein levels; As (III)-mediated induction was dose- and time-dependent and paralleled a strong increase in MRP2 amounts as assessed by Western blotting.
2(0,0,0,2) Details
7915598 Venetianer A, Pirity M, Hever-Szabo A: The function of heat-shock proteins in stress tolerance. Cell Biol Int. 1994 Jun;18(6):605-15.

Our experiments show that clone 2 cells were not protected from the killing effect of heat by pre-treatment with sodium arsenite, whereas Faza 967 cells were.
The multidrug resistance of the hepatoma variants correlates with the overexpression of the plasma membrane P-glycoprotein.
2(0,0,0,2) Details
11855834 Lorico A, Bertola A, Baum C, Fodstad O, Rappa G: Role of the Multidrug Resistance Protein 1 in protection from heavy metal oxyanions: investigations in vitro and in MRP1-deficient mice. Biochem Biophys Res Commun. 2002 Mar 1;291(3):617-22.

We have previously shown that mrp1 (-/-) cells are hypersensitive to sodium arsenite, sodium arsenate, and antimony potassium tartrate.
2(0,0,0,2) Details
8947035 Broeks A, Gerrard B, Allikmets R, Dean M, Plasterk RH: Homologues of the human multidrug resistance genes MRP and MDR contribute to heavy metal resistance in the soil nematode Caenorhabditis elegans. EMBO J. 1996 Nov 15;15(22):6132-43.


Nematodes were found to be hypersensitive to heavy metals when both the MRP homologue, mrp-1, and a member of the P-glycoprotein (Pgp) gene family, pgp-1, were deleted.
1(0,0,0,1) Details
14971641 Xie Y, Liu J, Liu Y, Klaassen CD, Waalkes MP: Toxicokinetic and genomic analysis of chronic arsenic exposure in multidrug-resistance mdr1a/1b (-/-) double knockout mice. Mol Cell Biochem. 2004 Jan;255(1-2):11-8.

Multidrug-resistance gene knockout mdr1a/1b (-/-) mice, which are deficient in P-glycoproteins, are more sensitive than wild-type (WT) mice to acute arsenic toxicity.
Thus, mdr1a/1b (-/-) and WT mice were exposed to sodium arsenite (0-80 ppm as arsenic) in the drinking water for 10 weeks at which time hepatic arsenic accumulation, lipid peroxidation (LPO), redox status and change in gene expression level were assessed.
1(0,0,0,1) Details
12387749 Brambila EM, Achanzar WE, Qu W, Webber MM, Waalkes MP: Chronic arsenic-exposed human prostate epithelial cells exhibit stable arsenic tolerance: mechanistic implications of altered cellular glutathione and glutathione S-transferase. Toxicol Appl Pharmacol. 2002 Sep 1;183(2):99-107.

Our results indicate that this tolerance in human cells involves increases in GSH levels and GST activity that allow for more efficient arsenic efflux by MRP1 and MDR1.
RWPE-1 cells continuously exposed to 5 microM sodium arsenite for > or =18 weeks exhibited dramatic resistance to acute arsenite toxicity.
1(0,0,0,1) Details
8968083 Lorico A, Rappa G, Flavell RA, Sartorelli AC: Double knockout of the MRP gene leads to increased drug sensitivity in vitro. Cancer Res. 1996 Dec 1;56(23):5351-5.


The cytotoxic activities of etoposide, teniposide, vincristine, doxorubicin, daunorubicin, and sodium arsenite were significantly greater in double knockout cells than in parental wild-type ES cells; single knockout ES cells displayed an intermediate level of sensitivity.
0(0,0,0,0) Details
1913647 Huot J, Roy G, Lambert H, Chretien P, Landry J: Increased survival after treatments with anticancer agents of Chinese hamster cells expressing the human Mr 27,000 heat shock protein. Cancer Res. 1991 Oct 1;51(19):5245-52.


A statistically significant increased survival relative to the parental cells was observed following treatment with daunorubicin (three clones studied), colchicine, vincristine, actinomycin D, hydrogen peroxide, and sodium arsenite (one clone studied).
0(0,0,0,0) Details
17671726 Tachiwada T, Chen ZS, Che XF, Matsumoto M, Haraguchi M, Gotanda T, Sumizawa T, Furukawa T, Nishiyama K, Seki N, Yamamoto M, Nakagawa M, Akiyama S: Isolation and characterization of arsenite-resistant human epidermoid carcinoma KB cells. Oncol Rep. 2007 Sep;18(3):721-7.


KAS cells were resistant to sodium arsenite (22-fold) and showed a reduced accumulation of arsenite as a result of an active efflux mechanism.
0(0,0,0,0) Details