TY - JOUR
T1 - Potential role of intratumor bacteria in mediating tumor resistance to the chemotherapeutic drug gemcitabine
AU - Geller, Leore T.
AU - Barzily-Rokni, Michal
AU - Danino, Tal
AU - Jonas, Oliver H.
AU - Shental, Noam
AU - Nejman, Deborah
AU - Gavert, Nancy
AU - Zwang, Yaara
AU - Cooper, Zachary A.
AU - Shee, Kevin
AU - Thaiss, Christoph A.
AU - Reuben, Alexandre
AU - Livny, Jonathan
AU - Avraham, Roi
AU - Frederick, Dennie T.
AU - Ligorio, Matteo
AU - Chatman, Kelly
AU - Johnston, Stephen E.
AU - Mosher, Carrie M.
AU - Brandis, Alexander
AU - Fuks, Garold
AU - Gurbatri, Candice
AU - Gopalakrishnan, Vancheswaran
AU - Kim, Michael
AU - Hurd, Mark W.
AU - Katz, Matthew
AU - Fleming, Jason
AU - Maitra, Anirban
AU - Smith, David A.
AU - Skalak, Matt
AU - Bu, Jeffrey
AU - Michaud, Monia
AU - Trauger, Sunia A.
AU - Barshack, Iris
AU - Golan, Talia
AU - Sandbank, Judith
AU - Flaherty, Keith T.
AU - Mandinova, Anna
AU - Garrett, Wendy S.
AU - Thayer, Sarah P.
AU - Ferrone, Cristina R.
AU - Huttenhower, Curtis
AU - Bhatia, Sangeeta N.
AU - Gevers, Dirk
AU - Wargo, Jennifer A.
AU - Golub, Todd R.
AU - Straussman, Ravid
N1 - Funding Information:
R.S. is funded by the Israel Science Foundation (grant no. 1877/14), the Moross Integrated Cancer Center, the Fabrikant-Morse Families Research Fund for Humanity, the Hymen T. Milgrom Trust, Rising Tide Foundation, the Dr. Dvora and Haim Teitelbaum Endowment Fund, the Tobias and Toni Gottesfeld Scholarship, and by A. Shashua, Israel. R.S. is the incumbent of the Roel C. Buck Career Development Chair. T.R.G. is funded by the Howard Hughes Medical Institute and by the U.S. National Cancer Institute (grant no. U54CA112962). C.H. is on the scientific advisory board of Evelo Biosciences. J.A.W. is a paid advisor for GlaxoSmithKline, Roche/ Genentech, Novartis, and Bristol-Myers Squibb.
Publisher Copyright:
© 2017, American Association for the Advancement of Science. All rights reserved.
PY - 2017/9/15
Y1 - 2017/9/15
N2 - Growing evidence suggests that microbes can influence the efficacy of cancer therapies. By studying colon cancer models, we found that bacteria can metabolize the chemotherapeutic drug gemcitabine (2′,2′-difluorodeoxycytidine) into its inactive form, 2′,2′-difluorodeoxyuridine. Metabolism was dependent on the expression of a long isoform of the bacterial enzyme cytidine deaminase (CDDL), seen primarily in Gammaproteobacteria. In a colon cancer mouse model, gemcitabine resistance was induced by intratumor Gammaproteobacteria, dependent on bacterial CDDL expression, and abrogated by cotreatment with the antibiotic ciprofloxacin. Gemcitabine is commonly used to treat pancreatic ductal adenocarcinoma (PDAC), and we hypothesized that intratumor bacteria might contribute to drug resistance of these tumors. Consistent with this possibility, we found that of the 113 human PDACs that were tested, 86 (76%) were positive for bacteria, mainly Gammaproteobacteria.
AB - Growing evidence suggests that microbes can influence the efficacy of cancer therapies. By studying colon cancer models, we found that bacteria can metabolize the chemotherapeutic drug gemcitabine (2′,2′-difluorodeoxycytidine) into its inactive form, 2′,2′-difluorodeoxyuridine. Metabolism was dependent on the expression of a long isoform of the bacterial enzyme cytidine deaminase (CDDL), seen primarily in Gammaproteobacteria. In a colon cancer mouse model, gemcitabine resistance was induced by intratumor Gammaproteobacteria, dependent on bacterial CDDL expression, and abrogated by cotreatment with the antibiotic ciprofloxacin. Gemcitabine is commonly used to treat pancreatic ductal adenocarcinoma (PDAC), and we hypothesized that intratumor bacteria might contribute to drug resistance of these tumors. Consistent with this possibility, we found that of the 113 human PDACs that were tested, 86 (76%) were positive for bacteria, mainly Gammaproteobacteria.
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U2 - 10.1126/science.aah5043
DO - 10.1126/science.aah5043
M3 - Article
C2 - 28912244
AN - SCOPUS:85029481879
SN - 0036-8075
VL - 357
SP - 1156
EP - 1160
JO - Science
JF - Science
IS - 6356
ER -