TY - JOUR
T1 - Increased glucose availability sensitizes pancreatic cancer to chemotherapy
AU - Vaziri-Gohar, Ali
AU - Hue, Jonathan J.
AU - Abbas, Ata
AU - Graor, Hallie J.
AU - Hajihassani, Omid
AU - Zarei, Mehrdad
AU - Titomihelakis, George
AU - Feczko, John
AU - Rathore, Moeez
AU - Chelstowska, Sylwia
AU - Loftus, Alexander W.
AU - Wang, Rui
AU - Zarei, Mahsa
AU - Goudarzi, Maryam
AU - Zhang, Renliang
AU - Willard, Belinda
AU - Zhang, Li
AU - Kresak, Adam
AU - Willis, Joseph E.
AU - Wang, Gi Ming
AU - Tatsuoka, Curtis
AU - Salvino, Joseph M.
AU - Bederman, Ilya
AU - Brunengraber, Henri
AU - Lyssiotis, Costas A.
AU - Brody, Jonathan R.
AU - Winter, Jordan M.
N1 - Publisher Copyright:
© 2023, The Author(s).
PY - 2023/12
Y1 - 2023/12
N2 - Pancreatic Ductal Adenocarcinoma (PDAC) is highly resistant to chemotherapy. Effective alternative therapies have yet to emerge, as chemotherapy remains the best available systemic treatment. However, the discovery of safe and available adjuncts to enhance chemotherapeutic efficacy can still improve survival outcomes. We show that a hyperglycemic state substantially enhances the efficacy of conventional single- and multi-agent chemotherapy regimens against PDAC. Molecular analyses of tumors exposed to high glucose levels reveal that the expression of GCLC (glutamate-cysteine ligase catalytic subunit), a key component of glutathione biosynthesis, is diminished, which in turn augments oxidative anti-tumor damage by chemotherapy. Inhibition of GCLC phenocopies the suppressive effect of forced hyperglycemia in mouse models of PDAC, while rescuing this pathway mitigates anti-tumor effects observed with chemotherapy and high glucose.
AB - Pancreatic Ductal Adenocarcinoma (PDAC) is highly resistant to chemotherapy. Effective alternative therapies have yet to emerge, as chemotherapy remains the best available systemic treatment. However, the discovery of safe and available adjuncts to enhance chemotherapeutic efficacy can still improve survival outcomes. We show that a hyperglycemic state substantially enhances the efficacy of conventional single- and multi-agent chemotherapy regimens against PDAC. Molecular analyses of tumors exposed to high glucose levels reveal that the expression of GCLC (glutamate-cysteine ligase catalytic subunit), a key component of glutathione biosynthesis, is diminished, which in turn augments oxidative anti-tumor damage by chemotherapy. Inhibition of GCLC phenocopies the suppressive effect of forced hyperglycemia in mouse models of PDAC, while rescuing this pathway mitigates anti-tumor effects observed with chemotherapy and high glucose.
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U2 - 10.1038/s41467-023-38921-8
DO - 10.1038/s41467-023-38921-8
M3 - Article
C2 - 37380658
AN - SCOPUS:85163639839
SN - 2041-1723
VL - 14
JO - Nature communications
JF - Nature communications
IS - 1
M1 - 3823
ER -