Increased expression of IDO1 is associated with improved survival and increased number of TILs in patients with high-grade serous ovarian cancer.

"the code used for tcga bulk gene expression analysis is available from: https://github com/bischofp/hgsoc_ido1 ."

"Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper."

"Funding M.P.D. is a participant in the BIH-Charité Junior Clinical Scientist Program funded by the Charité–Universitätsmedizin Berlin and the Berlin Institute of Health. M.P.D.'s work is funded by a 10.13039/501100012353DKTK Berlin Young Investigator Grant 2022 and Berliner Krebsgesellschaft (DRFF202204). PB is participant in the BIH-Charité Clinician Scientist Program funded by the Charité-Universitätsmedizin Berlin and the Berlin Institute of Health. PB's work is funded by a 10.13039/501100012353DKTK Berlin Young Investor Grant 2022."