[HTML][HTML] Selective inhibition of tumor cell associated Vacuolar-ATPase 'a2'isoform overcomes cisplatin resistance in ovarian cancer cells

A Kulshrestha, GK Katara, J Ginter, S Pamarthy… - Molecular …, 2016 - Elsevier
Abstract Development of resistance to platinum compounds significantly hinders successful
ovarian cancer (OVCA) treatment. In tumor cells, dysregulated pH gradient across cell …

Targeting V‐ATPase isoform restores cisplatin activity in resistant ovarian cancer: inhibition of autophagy, endosome function, and ERK/MEK pathway

A Kulshrestha, GK Katara, SA Ibrahim… - Journal of …, 2019 - Wiley Online Library
Ovarian cancer (OVCA) patients often develop tolerance to standard platinum therapy that
accounts for extensive treatment failures. Cisplatin resistant OVCA cells (cis‐R) display …

[HTML][HTML] Vacuolar ATPase 'a2'isoform exhibits distinct cell surface accumulation and modulates matrix metalloproteinase activity in ovarian cancer

A Kulshrestha, GK Katara, S Ibrahim, S Pamarthy… - Oncotarget, 2015 - ncbi.nlm.nih.gov
Tumor associated vacuolar H+-ATPases (V-ATPases) are multi-subunit proton pumps that
acidify tumor microenvironment, thereby promoting tumor invasion. Subunit 'a'of its V0 …

Vacuolar ATPase as a potential therapeutic target and mediator of treatment resistance in cancer

B Whitton, H Okamoto, G Packham… - Cancer medicine, 2018 - Wiley Online Library
Abstract Vacuolar ATPase (V‐ATPase) is an ATP‐dependent H+‐transporter that pumps
protons across intracellular and plasma membranes. It consists of a large multi‐subunit …

Inhibition of vacuolar ATPase subunit in tumor cells delays tumor growth by decreasing the essential macrophage population in the tumor microenvironment

GK Katara, A Kulshrestha, MK Jaiswal, S Pamarthy… - Oncogene, 2016 - nature.com
In cancer cells, vacuolar ATPase (V-ATPase), a multi-subunit enzyme, is expressed on the
plasma as well as vesicular membranes and critically influences metastatic behavior. The …

The V-ATPases in cancer and cell death

F Chen, R Kang, J Liu, D Tang - Cancer gene therapy, 2022 - nature.com
Transmembrane ATPases are membrane-bound enzyme complexes and ion transporters
that can be divided into F-, V-, and A-ATPases according to their structure. The V-ATPases …

In vivo anti‐V‐ATPase antibody treatment delays ovarian tumor growth by increasing antitumor immune responses

A Kulshrestha, GK Katara, SA Ibrahim… - Molecular …, 2020 - Wiley Online Library
Tumor acidity is the key metabolic feature promoting cancer progression and is modulated
by pH regulators on a cancer cell's surface that pump out excess protons/lactic acid for …

V-ATPase in cancer: mechanistic insights and therapeutic potentials

T Chen, X Lin, S Lu, B Li - Cell Communication and Signaling, 2024 - Springer
Abstract Vacuolar-type H+-ATPase (V-ATPase) is a crucial proton pump that plays an
essential role in maintaining intracellular pH homeostasis and a variety of physiological …

Extracellular and luminal pH regulation by vacuolar H+-ATPase isoform expression and targeting to the plasma membrane and endosomes

GA Smith, GJ Howell, C Phillips, SP Muench… - Journal of Biological …, 2016 - ASBMB
Plasma membrane vacuolar H+-ATPase (V-ATPase) activity of tumor cells is a major factor
in control of cytoplasmic and extracellular pH and metastatic potential, but the isoforms …

Inhibitors of vacuolar ATPase proton pumps inhibit human prostate cancer cell invasion and prostate‐specific antigen expression and secretion

V Michel, Y Licon‐Munoz, K Trujillo… - … journal of cancer, 2013 - Wiley Online Library
Abstract Vacuolar ATPases (V‐ATPases) comprise specialized and ubiquitously distributed
pumps that acidify intracellular compartments and energize membranes. To gain new …