Related Experiment Video

Updated: May 28, 2026

Generation and Expansion of Primary, Malignant Pleural Mesothelioma Tumor Lines
08:01

Generation and Expansion of Primary, Malignant Pleural Mesothelioma Tumor Lines

Published on: April 21, 2022

Aquaporin 1 is an independent prognostic factor in pleural malignant mesothelioma

Steven Chuan-Hao Kao1, Nicola Armstrong, Bridget Condon

  • 1Asbestos Diseases Research Institute, Bernie Banton Centre, Rhodes, New South Wales, Australia.

Cancer
|October 25, 2011
PubMed
Abstract

Insights

High expression of Aquaporin 1 (AQP1) in malignant mesothelioma (MM) tumors indicates better patient survival. This prognostic marker is independent of other factors and could guide treatment.

Area of Science:

  • Oncology
  • Molecular Biology
  • Pathology

Background:

  • Malignant mesothelioma (MM) is an aggressive cancer with poor prognosis and no reliable tissue markers.
  • Aquaporin 1 (AQP1), a water channel protein, is implicated in cell motility and proliferation.
  • Current prognostic scoring systems for MM lack precision.

Purpose of the Study:

  • To investigate the prognostic value of Aquaporin 1 (AQP1) expression in malignant mesothelioma (MM).
  • To determine if AQP1 expression can serve as a predictive biomarker for MM patient survival.
  • To assess the potential of AQP1 as a therapeutic target.

Main Methods:

  • Studied two independent cohorts of MM patients (n=80 surgically treated, n=56 conservatively managed).
  • Performed immunohistochemical labeling for AQP1 on tumor tissues.
  • Scored the percentage of AQP1-positive tumor cells and correlated with clinical data.

Main Results:

  • AQP1 was expressed in normal and neoplastic mesothelium, consistent with its role in water transport.
  • High AQP1 expression (≥50% of tumor cells) significantly correlated with enhanced survival in both patient cohorts.
  • This association remained significant regardless of established prognostic factors like histology, stage, sex, and age.

Conclusions:

  • AQP1 expression is a significant and independent prognostic biomarker in malignant mesothelioma.
  • Immunohistochemical assessment of AQP1 should be integrated into routine histopathologic evaluation of MM.
  • AQP1-targeting agents (agonists or blockers) may offer future therapeutic strategies for MM.

More Related Videos

Human Serum Anti-aquaporin-4 Immunoglobulin G Detection by Cell-based Assay05:45

Human Serum Anti-aquaporin-4 Immunoglobulin G Detection by Cell-based Assay

Published on: April 5, 2019

Tracking Single Proteins in Lipid Bilayers Using Fluorescence Microscopy08:39

Tracking Single Proteins in Lipid Bilayers Using Fluorescence Microscopy

Published on: December 12, 2025

Related Concept Videos

Aquaporins01:25

Aquaporins

Aquaporins or AQPs are a family of integral membrane proteins whose primary function is to transport water, while some called aquaglyceroporins also transport glycerol. In addition, aquaporins have also been suspected to be involved in transporting volatile substances, such as carbon dioxide and ammonia, across membranes. Such AQPs that act as gas channels are often highly expressed in cells involved in the gaseous exchange, such as red blood cells, epithelial cells, and pulmonary capillaries.
Abnormal Proliferation02:23

Abnormal Proliferation

Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the daughter...