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Singh D, Biswas D, Tewari M, Kar AG, Ansari MA, Singh S, Narayan G. Clinical Significance of Overexpression of Oct4 in Advanced Stage Gallbladder Carcinoma. J Gastrointest Cancer 2023; 54:1231-1239. [PMID: 36705780 DOI: 10.1007/s12029-023-00913-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/22/2023] [Indexed: 01/28/2023]
Abstract
BACKGROUND Oct4 has critical role in maintaining pluripotency, proliferative potential, and self-renewal capacity in embryonic stem and germ cells. Although Oct4 has been shown to be upregulated in many cancers, its clinical significance in gallbladder carcinoma is poorly understood. METHODS We studied the expression profile of Oct4 in 61 GBC and 30 chronic cholecystitis (as control) using real time RT-PCR, western blotting, and immunohistochemistry. The expression data was correlated with clinico-pathological parameters. The diagnostic utility was assessed through ROC curve, and prognostic value was analyzed by Kaplan-Meier method. RESULTS Oct4 was significantly upregulated at mRNA as well as protein levels. The higher mRNA expression shows significant association with late stage, late T stage, and higher grade of tumor. A significant positive correlation was also observed with stage, T stage, and tumor grade. Sum score analysis of protein expression shows positive correlation with stage and the presence or absence of gallstone in tumor samples. The ROC curve analysis revealed the moderate diagnostic potential of Oct4. Kaplan-Meier analysis showed that patients having higher expression of Oct4 were having low mean survival compared with the patients with lower Oct4 expression. CONCLUSION In conclusion, our data suggests that higher expression of Oct4 may serve as potential biological indicator for tumor aggressiveness and poor prognosis of GBC.
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Affiliation(s)
- Deepika Singh
- Cancer Genetics Laboratory, Department of Molecular and Human Genetics, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
- Department of Radiation Oncology, The Ohio State University, Columbus, 43210, USA
| | - Dipanjan Biswas
- Department of Surgical Oncology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221005, India
- Department of Surgical Oncology, Tata Memorial Hospital, Parel, Mumbai, 400012, India
| | - Mallika Tewari
- Department of Surgical Oncology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221005, India
| | - Amrita Ghosh Kar
- Department of Pathology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221005, India
| | - Mumtaz Ahmad Ansari
- Department of General Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221005, India
| | - Sunita Singh
- Department of Zoology, Banaras Hindu University, Mahila Mahavidyalaya, Varanasi, 221005, India
| | - Gopeshwar Narayan
- Cancer Genetics Laboratory, Department of Molecular and Human Genetics, Institute of Science, Banaras Hindu University, Varanasi, 221005, India.
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Tan XG, Yang ZL, Yang LP, Miao XY. Expression of DNA-repair proteins and their significance in pancreatic cancer and non-cancerous pancreatic tissues of Sprague-Dawley rats. World J Surg Oncol 2014; 12:32. [PMID: 24502441 PMCID: PMC3931407 DOI: 10.1186/1477-7819-12-32] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2013] [Accepted: 01/28/2014] [Indexed: 12/30/2022] Open
Abstract
Background To establish a model of pancreatic cancer induced by 7,12-dimethylbenzantracene (DMBA) in Sprague–Dawley (SD) rats, and detect the expression of DNA-repair proteins (MGMT, ERCC1, hMSH2, and hMLH1) and their significance in pancreatic cancer and non-cancerous pancreatic tissues of SD rats. Methods DMBA was directly implanted into the parenchyma of rat pancreas (group A and group B), and group B rats were then treated with trichostatin A (TSA). The rats in both groups were executed within 3 to 5 months, and their pancreatic tissues were observed by macrography and under microscopy. Meanwhile, the rats in the control group (group C) were executed at 5 months. Immunohistochemistry was used to assay the expression of MGMT, ERCC1, hMSH2, and hMLH1. Results The incidence of pancreatic cancer in group A within 3 to 5 months was 48.7% (18/37), including 1 case of fibrosarcoma. The incidence of pancreatic cancer in group B was 33.3% (12/36), including 1 case of fibrosarcoma. The mean of maximal diameters of tumors in group A was higher than that in group B (P <0.05). No pathological changes were found in pancreas of group C and other main organs (except pancreas) of group A and group B. No statistical differences were found among the positive rates of MGMT, ERCC1, hMSH2, and hMLH1 in ductal adenocarcinoma and non-cancerous pancreatic tissues of group A (P >0.05). The positive rates of MGMT, ERCC1, hMSH2, and hMLH1 were significantly lower in ductal adenocarcinoma than those in non-cancerous tissues of group B (P ≤0.05). All pancreas of group C had positive expression of MGMT, ERCC1, hMSH2, and hMLH1 and two cases of fibrosarcoma showed a negative expression. Conclusions DMBA, directly implanted into the parenchyma of pancreas, creates an ideal pancreatic cancer model within a short time. TSA might restrain DNA damage related to the genesis and growth of pancreatic cancer in rats. The DNA-repair proteins, including MGMT, ERCC1, hMSH2, and hMLH1, might play an important role in the genesis of pancreatic cancer induced by DMBA in rats.
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Affiliation(s)
| | - Zhu-lin Yang
- Research Laboratory of Hepatobiliary Diseases, Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China.
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PSCA and Oct-4 expression in the benign and malignant lesions of gallbladder: implication for carcinogenesis, progression, and prognosis of gallbladder adenocarcinoma. BIOMED RESEARCH INTERNATIONAL 2013; 2013:648420. [PMID: 23984394 PMCID: PMC3747335 DOI: 10.1155/2013/648420] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2012] [Accepted: 06/09/2013] [Indexed: 02/06/2023]
Abstract
PSCA and Oct-4 have been thought as markers of cancer stem cells. Although overexpression of PSCA and Oct-4 in cancer has been reported, little is known about the clinical and pathological significance with PSCA and Oct-4 expression in gallbladder adenocarcinoma. In this study, overexpression of PSCA and Oct-4 was detected in gallbladder adenocarcinoma (54.6% and
55.6%). Less expression of PSCA and Oct-4 was detected in the pericancerous tissues (19.6% and 21.7%), gallbladder polyps (13.3% and 13.3%), and gallbladder epithelium with chronic cholecystitis (14.3% and 14.3%). The overexpression of PSCA and Oct-4 was significantly associated with differentiation, tumor mass, lymph node metastasis, invasion of gallbladder adenocarcinoma, and decreased overall survival. Our study suggested that overexpression of PSCA and Oct-4 might be closely related to the carcinogenesis, progression, metastasis, or invasive potential and prognosis of gallbladder carcinoma.
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Expression of MK-1 and RegIV and its clinicopathological significances in the benign and malignant lesions of gallbladder. Diagn Pathol 2011; 6:100. [PMID: 22018336 PMCID: PMC3225305 DOI: 10.1186/1746-1596-6-100] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2011] [Accepted: 10/21/2011] [Indexed: 12/19/2022] Open
Abstract
Background To study the expression of MK-1 and RegⅣ and to detect their pathological significances in benign and malignant lesions of gallbladder. Methods The expression of MK-1 and RegⅣ was detected by immunohistochemical method in paraffin-embedded sections of surgical resected specimens from gallbladder adenocarcinoma (n = 108), peritumoral tissues (n = 46), adenomatous polyp (n = 15), and chronic cholecystitis (n = 35). Results The positive rate of MK-1 or RegⅣ expression was significantly higher in gallbladder adenocarcinoma than that in peritumoral tissues (χ2MK-1 = 18.76, P < 0.01; χ2RegⅣ = 9.92, P < 0.01), denomatous polyp (χ2MK-1 = 9.49, P < 0.01; χ2RegⅣ = 8.59, P < 0.01) and chronic cholecystitis (χ2MK-1 = 24.11, P < 0.01; χ2RegⅣ = 19.24, P < 0.01). The positive cases of MK-1 and/or RegⅣ in the benign lesions showed moderately- or severe-atypical hyperplasia of gallbladder epitheli. The positive rates of MK-1 were significantly higher in the cases of well-differentiated adenocarcinoma, no-metastasis of lymph node, and no-invasiveness of regional tissues than those in the ones of differentiated adenocarcinoma, metastasis of lymph node, and invasiveness of regional tissues in gallbladder adenocarcinoma (P < 0.05 or P < 0.01). On the contrary, the positive rates of RegⅣ were significantly lower in the cases of well-differentiated adenocarcinoma, no-metastasis of lymph node, and no-invasiveness of regional tissues than those in the ones of differentiated adenocarcinoma, metastasis of lymph node, and invasiveness of regional tissues in gallbladder adenocarcinoma (P < 0.05 or P < 0.01). Univariate Kaplan-Meier analysis showed that decreased expression of MK-1 (P = 0.09) or increased expression of RegⅣ (P = 0.003) was associated with decreased overall survival. Multivariate Cox regression analysis showed that decreased expression of MK-1 (P = 0.033) and increased expression of RegⅣ (P = 0.008) was an independent prognostic predictor in gallbladder adenocarcinoma. Conclusions The expression of MK-1 and/or RegⅣ might be closely related to the carcinogenesis, clinical biological behaviors, and prognosis of gallbladder adenocarcinoma.
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Xiong L, Yang Z, Yang L, Liu J, Miao X. Expressive levels of MUC1 and MUC5AC and their clinicopathologic significances in the benign and malignant lesions of gallbladder. J Surg Oncol 2011; 105:97-103. [PMID: 21815153 DOI: 10.1002/jso.22055] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2010] [Accepted: 07/13/2011] [Indexed: 12/26/2022]
Abstract
OBJECTIVE This article is intended to make a study on the expressive levels of mucin core proteins (MUC1 and MUC5AC) and detect their clinicopathologic significances in the benign and malignant lesions of gallbladder. METHODS EnVision immunohistochemical method for determining the expressions of MUC1 and MUC5AC was used in routinely paraffin-embedded sections of surgically resected specimens from gallbladder adenocarcinoma (n = 108), peritumoral tissues (n = 46), adenoma (n = 15), and chronic cholecystitis (n = 35). RESULTS The positive rate of MUC1 expression was significantly higher in gallbladder adenocarcinoma than that in peritumoral tissues (χ(2) = 16.49, P < 0.01), adenoma (χ(2) = 7.40, P < 0.01), and chronic cholecystitis (χ(2) = 28.57, P < 0.01), while the positive rate of MUC5AC expression was significantly lower in gallbladder adenocarcinoma than that in peritumoral tissues (χ(2) = 12.83, P < 0.01), adenoma (χ(2) = 4.22, P < 0.05), and chronic cholecystitis (χ(2) = 20.25, P < 0.01). The positive cases of MUC1 and the negative ones of MUC5AC in the benign lesions showed moderate- or severe-dysplasia of gallbladder epithelium. The positive rates of MUC1 were significantly lower in gallbladder adenocarcinomas with maximal diameter of mass <2 cm, no metastasis of lymph node, and no invasiveness of regional tissues (P < 0.05 or P < 0.01) than those in gallbladder adenocarcinomas with maximal diameter of mass >2 cm, metastasis of lymph node, and invasiveness of regional tissues (P < 0.05 or P < 0.01). However, the positive rates of MUC5AC were significantly higher in the highly differentiated adenocarcinoma with maximal diameter of mass <2 cm than those in the low-differentiated adenocarcinoma with maximal diameter of mass ≥2 cm. Univariate Kaplan-Meier analysis showed that increased expression of MUC1 (P = 0.064) or decreased expression of MUC5AC (P = 0.017) was associated with decreased overall survival. Multivariate Cox regression analysis showed that decreased expression of MUC5AC (P = 0.008) was an independent prognostic predictor to gallbladder adenocarcinoma. CONCLUSIONS The expression of MUC1 and MUC5AC might be closely related to the carcinogenesis, clinical biological behaviors, and prognosis of gallbladder adenocarcinoma.
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Affiliation(s)
- Li Xiong
- Department of General Surgery, Second Xiangya Hospital of Central South University, Changsha, China.
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Overexpression of EZH2 and loss of expression of PTEN is associated with invasion, metastasis, and poor progression of gallbladder adenocarcinoma. Pathol Res Pract 2011; 207:472-8. [DOI: 10.1016/j.prp.2011.05.010] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2010] [Revised: 04/11/2011] [Accepted: 05/08/2011] [Indexed: 02/04/2023]
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Clinical significance of P-glycoprotein expression in metastatic breast carcinoma. Chin J Cancer Res 2005. [DOI: 10.1007/s11670-005-0015-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Camassei FD, Arancia G, Cianfriglia M, Bosman C, Francalanci P, Ravà L, Jenkner A, Donfrancesco A, Boldrini R. Nephroblastoma: multidrug-resistance P-glycoprotein expression in tumor cells and intratumoral capillary endothelial cells. Am J Clin Pathol 2002; 117:484-90. [PMID: 11888090 DOI: 10.1309/l44x-l5dn-1vhv-x30n] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
The development of chemoresistance in a variety of cancers seems related to overexpression of the P-glycoprotein (P-gp) drug pump. Nephroblastoma, the most common malignant renal tumor of childhood, usually is responsive to treatment, and prognosis is favorable in most cases. However, the disease in a subset of patients is refractory to treatment, and the disease follows an aggressive course. To study P-gp expression in this tumor and its correlation with outcome, tumor samples from 93 patients were examined by immunohistochemical analysis. P-gp expression was determined separately in both tumor cells and intratumoral capillary endothelium. The likelihood ratio test, the Kaplan-Meier method, and the log-rank test were used to evaluate its association with clinical course, grade, stage, and administration of preoperative chemotherapy. The results for the majority of nephroblastomas were variably positive; in 43 (46%) of them, newly formed capillary endothelial cells also stained positive. While no association of P-gp expression in tumor cells with clinical course, stage, and grade could be demonstrated, positivity in endothelial cells correlated significantly with unfavorable outcome, suggesting that chemoresistance depended on an active blood-tumor barrier. Previous chemotherapy induced P-gp overexpression in tumor cells.
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Fu XL, Zhu XZ, Shi DR, Xiu LZ, Wang LJ, Zhao S, Qian H, Lu HF, Xiang YB, Jiang GL. Study of prognostic predictors for non-small cell lung cancer. Lung Cancer 1999; 23:143-52. [PMID: 10217618 DOI: 10.1016/s0169-5002(99)00009-4] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND The outcome of treatment in non-small cell lung cancer (NSCLC) remains poor. One of the reasons is that in many patients its biological behavior does not follow a definite pattern, and can not be accurately predicted prior to treatment. In the present study we have examined the significant prognostic predictors. METHODS One hundred and fifty-eight patients with NSCLC entered this study. They received surgery alone (95 cases) or combined therapy with postoperative irradiation (63 cases). Three types of data have been collected: (1) clinical characteristics: age, sex, Karnofsky performance status, weight loss, T stage, and N stage; (2) histopathology studies: histological types, tumor differentiation, status of vascular and lymphatic vessel invasions; (3) laboratory measurements by immunohistochemistry assay: oncoprotein overexpression, including pan-ras, c-myc, neu, epidermal growth factor receptor (EGFR) and p53, and tumor cell proliferation by proliferating cell nuclear antigen (PCNA). RESULTS For the entire group, 5-year actuarial survival, local control and distant metastasis rates were 44, 63 and 40%, respectively. In the univariate analyses, T stage, N stage and lymphatic vessel invasion correlated to survival; T stage and N stage to local control; N stage, lymphatic vessel invasion and pan-ras protein positive stain to distant metastasis. When the index of oncoprotein positive stains was used, the higher index was associated with a higher distant metastasis rate. In the multivariate analyses, T stage, N stage and lymphatic vessel invasion could be independent predictors for survival; T stage for local control; N stage, lymphatic vessel invasion and index of positive oncoprotein stains for distant metastasis. CONCLUSIONS Late T and N stages, lymphatic vessel invasion and multi-oncoprotein positive stains would predict poor prognoses for NSCLC.
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Affiliation(s)
- X L Fu
- Lung Cancer Service, Cancer Hospital, Shanghai Medical University, China
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Nakanishi H, Myoui A, Ochi T, Aozasa K. P-glycoprotein expression in soft-tissue sarcomas. J Cancer Res Clin Oncol 1997; 123:352-6. [PMID: 9222302 DOI: 10.1007/bf01438312] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Multidrug resistance (MDR) is an important problem in chemotherapy for neoplastic disease. In humans. MDR is mainly mediated by P-glycoprotein (P-gp) a product of the MDRI gene, which acts as a transmembrane protein pump and eliminates chemotherapeutic agents from the cells. Expression of P-gp was immunohistochemically studied by using two monoclonal antibodies, JSB-1 and C-219, on paraffin-embedded sections from 55 patients with soft-tissue sarcoma. The histological diagnosis of tumors was malignant fibrous histiocytoma in 24 cases, liposarcoma in 9, synovial sarcoma in 7, malignant neurogenic tumors in 6, leiomyosarcoma in 5, others in 4. The histological grade was determined on the basis of criteria previously proposed by us. Out of 55 cases, 34 (62%) were positive for P-gp expression. There was a significant difference in P-gp expression between high-grade (90%) and intermediate and low-grade tumors (46%) (P < 0.005). Tumors expressing P-gp had a less favorable prognosis than P-gp-negative tumors in the high- and intermediate-grade tumors. The current study demonstrated that the estimation of P-gp expression could be used to select appropriate therapeutic modalities.
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Affiliation(s)
- H Nakanishi
- Department of Pathology, Osaka University Medical School, Japan
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Stein U, Shoemaker RH, Schlag PM. MDR1 gene expression: evaluation of its use as a molecular marker for prognosis and chemotherapy of bone and soft tissue sarcomas. Eur J Cancer 1996; 32A:86-92. [PMID: 8695249 DOI: 10.1016/0959-8049(95)00478-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Successful chemotherapeutic treatment of malignant tumours is often limited by the intrinsic or acquired multidrug resistance (MDR). The classical MDR phenotype is characterised by reduced drug accumulation within the cell, caused by overexpression of the MDR1 gene encoded P-glycoprotein. Some reports have been published evaluating MDR1 expression as a molecular marker for response to chemotherapy in human bone and soft tissue sarcomas. In this review, an attempt is made to summarise the accuracy of the measurement of MDR1 expression for use in prognosis, as well as in decisions on chemotherapeutic treatment of sarcomas. In addition, general problems for the performance of such studies is discussed.
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Affiliation(s)
- U Stein
- Max-Delbrück-Centrum für Molekulare Medizin, Berlin, Germany
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Cianfriglia M, Romagnoli G, Tombesi M, Poloni F, Falasca G, Di Modugno F, Castagna M, Chersi A. P-glycoprotein epitope mapping. II. The murine monoclonal antibody MM6.15 to human multidrug-resistant cells binds with three distinct loops in the MDR1-P-glycoprotein extracellular domain. Int J Cancer 1995; 61:142-7. [PMID: 7705928 DOI: 10.1002/ijc.2910610124] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A new murine monoclonal antibody (MAb), MM6.15, to human MDR1 P-glycoprotein was found to be reactive in ELISA with synthetic peptides selected from the predicted sequences of the first, fourth and sixth extracellular loop of MDR1-P-glycoprotein. In order to precisely define the MM6.15-binding site, a peptide library of overlapping 5- to 9-mer residues covering the entire sixth extracellular loop of both human and rodent class-1 P-glycoproteins was synthesized on polyethylene pins and tested for MAb binding. The results of this ELISA demonstrated that the MAb MM6.15 reacts only with human synthetic peptides and that the critical component of the MAb recognition is made up of the amino-acid sequence LVAHKL (residues 963-968 of the MDR1-P-glycoprotein) with histidine (H), lysine (K) and possibly leucine (L), key residues of this immunogenic domain.
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MESH Headings
- ATP Binding Cassette Transporter, Subfamily B, Member 1/analysis
- ATP Binding Cassette Transporter, Subfamily B, Member 1/immunology
- ATP Binding Cassette Transporter, Subfamily B, Member 1/metabolism
- Amino Acid Sequence
- Animals
- Antibodies, Monoclonal/immunology
- Antibodies, Monoclonal/metabolism
- Antibody Specificity
- Binding Sites
- Cricetinae
- Drug Resistance, Multiple/genetics
- Drug Resistance, Multiple/physiology
- Epitope Mapping
- Extracellular Space/metabolism
- Histidine/metabolism
- Humans
- Leucine/metabolism
- Lysine/metabolism
- Mice
- Molecular Sequence Data
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Affiliation(s)
- M Cianfriglia
- Laboratorio di Immunologia, Istituto Superiore di Sanità, Rome, Italy
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