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Cancer metastasis database
General information | Literature | Expression | Regulation | Mutation | Homolog | Interaction

Basic Information

Gene ID

4137

Name

MAPT

Synonymous

microtubule-associated protein tau;MAPT;microtubule-associated protein tau

Definition

G protein beta1/gamma2 subunit-interacting factor 1|PHF-tau|neurofibrillary tangle protein|paired helical filament-tau|protein phosphatase 1, regulatory subunit 103

Position

17q21.1

Gene type

protein-coding

Title

Abstract

breast cancer

PURPOSE: Paclitaxel is widely used for the treatment of patients with metastatic breast cancer (MBC). Although several mechanisms of paclitaxel resistance have been demonstrated, useful markers of paclitaxel resistance have not been available in clinical practice. METHODS: In this study, the clinical significance of tau expression in MBC cases was established by identifying candidates with paclitaxel administration. Tissue specimens obtained from 35 patients were examined. Status of tau expression was determined by immunohistochemistry. RESULTS: Fifteen cases were classified as tau-negative and 20 cases were classified as tau-positive, respectively. Sixty percent of tau-negative expression showed favorable response. Conversely, 85% of tau-positive expression showed progressive or stable disease after paclitaxel administration. Time to disease progression in tau-negative and tau-positive groups was 9.4 +/- 6.6 and 6.0 +/- 3.7 months, respectively. CONCLUSIONS: Patients with tau-positive expression may derive less benefit than tau-negative from paclitaxel therapy in MBC.