Pharmacologic ascorbate synergizes with gemcitabine in preclinical models of pancreatic cancer

MG Espey, P Chen, B Chalmers, J Drisko… - Free Radical Biology …, 2011 - Elsevier
Conventional treatment approaches have had little impact on the course of pancreatic
cancer, which has the highest fatality rate among cancers. Gemcitabine, the primary …

Treatment of pancreatic cancer with pharmacological ascorbate

JA Cieslak, JJ Cullen - Current pharmaceutical biotechnology, 2015 - ingentaconnect.com
The prognosis for patients diagnosed with pancreatic cancer remains dismal, with less than
3% survival at 5 years. Recent studies have demonstrated that high-dose, intravenous …

Pharmacological ascorbate with gemcitabine for the control of metastatic and node-positive pancreatic cancer (PACMAN): results from a phase I clinical trial

JL Welsh, BA Wagner, TJ Van't Erve, PS Zehr… - Cancer chemotherapy …, 2013 - Springer
Background Treatment for pancreatic cancer with pharmacological ascorbate (ascorbic acid,
vitamin C) decreases tumor progression in preclinical models. A phase I clinical trial was …

Mechanisms of ascorbate-induced cytotoxicity in pancreatic cancer

J Du, SM Martin, M Levine, BA Wagner… - Clinical Cancer …, 2010 - AACR
Purpose: Pharmacologic concentrations of ascorbate may be effective in cancer
therapeutics. We hypothesized that ascorbate concentrations achievable with iv dosing …

Pharmacologic ascorbate reduces radiation-induced normal tissue toxicity and enhances tumor radiosensitization in pancreatic cancer

MS Alexander, JG Wilkes, SR Schroeder, GR Buettner… - Cancer research, 2018 - AACR
Chemoradiation therapy is the mainstay for treatment of locally advanced, borderline
resectable pancreatic cancer. Pharmacologic ascorbate (P-AscH−, ie, intravenous infusions …

Pharmacological ascorbate radiosensitizes pancreatic cancer

J Du, JA Cieslak III, JL Welsh, ZA Sibenaller, BG Allen… - Cancer research, 2015 - AACR
The toxicity of pharmacologic ascorbate is mediated by the generation of H2O2 via the
oxidation of ascorbate. Because pancreatic cancer cells are sensitive to H2O2 generated by …

Pharmacologic doses of ascorbate act as a prooxidant and decrease growth of aggressive tumor xenografts in mice

Q Chen, MG Espey, AY Sun, C Pooput… - Proceedings of the …, 2008 - National Acad Sciences
Ascorbic acid is an essential nutrient commonly regarded as an antioxidant. In this study, we
showed that ascorbate at pharmacologic concentrations was a prooxidant, generating …

High dose parenteral ascorbate inhibited pancreatic cancer growth and metastasis: mechanisms and a phase I/IIa study

K Polireddy, R Dong, G Reed, J Yu, P Chen… - Scientific reports, 2017 - nature.com
Pancreatic cancer is among the most lethal cancers with poorly tolerated treatments. There
is increasing interest in using high-dose intravenous ascorbate (IVC) in treating this disease …

Ascorbate exerts anti-proliferative effects through cell cycle inhibition and sensitizes tumor cells towards cytostatic drugs

A Frömberg, D Gutsch, D Schulze, C Vollbracht… - Cancer chemotherapy …, 2011 - Springer
Purpose While the benefits of ascorbic acid (vitamin C, ascorbate) as an essential nutrient
are well established, its effects on tumor cells and in tumor treatment are controversial. In …

Mechanisms of anti-cancer effects of ascorbate: Cytotoxic activity and epigenetic modulation

D Mastrangelo, E Pelosi, G Castelli, F Lo-Coco… - Blood Cells, Molecules …, 2018 - Elsevier
Abstract Vitamin C (Vit C or Ascorbate) is essential for many fundamental biochemical
processes. Vit C is an essential nutrient with redox functions at normal physiologic …