Objective:To investigate the expression and significance of the multidrug resistance-related genes multidrug resistance gene1(MDR1)、multidrug resistance-related protein(MRP)、lung resistance protein(LRP)mRNA and their proteins P-glycoprotein(P-gp)、MRP、LRP in human non small cell lung cancer(NSCLC)tissues and paratumor tissues.
Objective To explore the roles of MDR1 ( multi-drug resistance protein 1) , MRP1 ( multi-drug resistance related protein 1) , LRP( lung resistance protein) and BCRP( breast cancer resistance protein) in the phenomenon of multi-drug resistance ( MOR) in hepatoma. Methods Through exposing HePG2 cell line to gradually increased concentration of adriamycin ( ADM) , HePG2 multidrug resistant subcell line (HePG2/ADM) was induced.
目的研究4种耐药蛋白:多药耐药蛋白(multi-drug resistance protein 1,MDR1),多药耐药相关蛋白1(multi-drug resistance related protein 1,MRP1),肺耐药蛋白(lung resistance protein, LRP),乳腺癌耐药蛋白(breast cancer resistance protein,BCRP)在肝癌多药耐药中的作用。
AIM: To explore the expression of four kinds of drug resistance related protein: P-glycoprotein((P-gp)),glutathione-S-transferases-π(GST-π),lung resistance protein(LRP),multidrug resistance related protein(MRP) in osteosarcoma cell lines Saos2 and U2OS,and in osteosarcoma and soft tissue sarcoma tissues from 34 patients and their correlations with chemotherapy resistance.
Objective: To observe the effect of tetrandrine on the P170 production expressed by multi-drug resistance gene, lung resistant protein (LRP), and topoisomeras Ⅱ and elucidate the underlying molecular mechanism.
It was caused by complicated reasons , among which the expression of the membrane transport - associated drug resistant protein, P - glycoprotein (P - gp) is the most common and important one.
The levels of cellular multidr ug resistant protein 1 (MRP1), glutathione-S-transferase (GST), and topoisomeras e-Ⅱ (TOPO-Ⅱ) were detected by flow cytometry (FCM). The level of intracellular glutathione (GSH) was measured by fluorescence-Coomassie light blue method.
Objective:To investigate the expression and significance of the multidrug resistance-related genes multidrug resistance gene1(MDR1)、multidrug resistance-related protein(MRP)、lung resistance protein(LRP)mRNA and their proteins P-glycoprotein(P-gp)、MRP、LRP in human non small cell lung cancer(NSCLC)tissues and paratumor tissues.
Objective:To investigate the expression of P-glycoprotein(P-gp),multidrug resistance-related protein(MRP),lung resistance-related protein(LRP),P53 and c-erbB-2 in untreated non-small cell lung cancer(NSCLC) and their relationship with each other.
Objective To investigate the expression of the inutidrug resistance-related genes: mutidrug resistance gene1 (mdr1), mulidrug resistance-related protein (MRP)、 lung resistance protein (LRP) mRNA and its proteins: P-glycoprotein(P-gp), MRP、LRP in human non small cell lung cancer tissues and paratumor tissues ,Meanwhile determine whether these genes and proteins expression had relationship with clinical stage、 pathological type、 pathological classification and lymph node metastases ;
Objective:To investigate the expression of multidrug resistance gene production P-Glycoprotein (PGP),multidrug resistance-associated protein (MRP1), lung resistance-related protein (LRP), and breast cancer resistance protein (BCRP) in primary breast carcinoma, and to determine whether such the expression can predict survival. Methods:Expression of the four proteins in 50 breast cancer patients was determined by immunohiostochemistry on formalin-fixed, paraffin-embedded tumor section.
目的:研究包括P-糖蛋白(P-glycoprotein,PGP)、多药耐药相关蛋白-1(Multidrug resistance-associated protein1,MRP1)、肺耐药相关蛋白(Lung resistance-related protein,LRP)和乳腺癌耐药蛋白(Breast cancer resistance protein,BCRP)在乳腺癌组织中的表达,并评估其在乳腺癌预后中的作用。
The aim of this study is to investigate the expression of resistance-related proteins, P-glycoprotein (P-gp), multidrug resistance-associated protein (MRP), lung resistance-related protein (LRP), topoisomerase Ⅱ (Topo Ⅱ) and glutathion-S-transferase-π (GST-π) in non-small cell lung cancer (NSCLC) tissues and their clinical significance.
There was no difference between HePG2 and L02 cells for mRNA expressions of the four genes (FMDR1 = 1006, FBCRP= 87. 49, FMRP1= 3. 43, FLRP= 2. 44, Pall >0. 05).
The co-expression rate of P-gp and GST-π protein was 29.41%, of P-gp and TS protein was 29.41%, of GST-π and TS protein was 19.61%, of P-gp, GST-π and TS protein was 13.73% in cervical cancer.
The co-expression rate of P-gp and Topo-Ⅱproteins was 20.7%(11/53), of P-gp and GST-π proteins was 26.4%(14/53),of GST-pi and Topo-Ⅱproteins was 32.1%(17/53) , of P-gp、GST-π and Topo-Ⅱproteins was 15.1%(8/53).
The goal of this study was to investigate the role of a multidrug resistance protein, P-glycoprotein (Pgp), in the evolution of CML treated with imatinib.
Expressions of multidrug resistance 1 (MDR1), multidrug resistance-associated protein (MRP) and lung resistance protein (LRP) were detected by reverse transcription polymerase chain reaction (RT-PCR).
PrP 27-30, a unique protease-resistant protein associated with scrapie infectivity, derives from the proteolytic cleavage of a larger precursor encoded by a host gene.
Plaque amyloid was exclusively of the β/A4 type, but abundant abnormal protease-resistant protein was identified by Western blot analysis of brain extracts.
We studied the immunocytochemical distribution of the prion or proteinase-resistant protein (PrP) during the evolution of experimental Creutzfeldt-Jakob disease (CJD) in mice.
The multidrug resistance-related protein MRP1 and the lung resistance-related protein LRP are associated with drug resistance against chemotherapeutics; they protect cells against toxic compounds.
Therefore, the purpose of this study was to retrospectively evaluate the relationship between 99mTc-MIBI parathyroid imaging results and Pgp or multidrug resistance-related protein (MRP) expression in parathyroid adenomas.
Polarized excretion of most isoflavone conjugates was inhibited by the multidrug resistance-related protein (MRP) inhibitor leukotriene C4 (0.1?μM) and the organic anion transporter (OAT) inhibitor estrone sulfate (10?μM).
Two recently discovered proteins, lung resistance protein (LRP) and the multidrug resistance-related protein (MRP) have been implicated in the development of MDR.