Sulfasalazine could modulate the <scp>CD</scp>44v9‐<scp>xCT</scp> system and enhance cisplatin‐induced cytotoxic effects in metastatic bladder cancer

Koichiro Ogihara, Eiji Kikuchi, Shogo Okazaki, +7

Cancer Science

The pretreatment neutrophil-to-lymphocyte ratio is a novel biomarker for predicting clinical responses to pembrolizumab in platinum-resistant metastatic urothelial carcinoma patients

Koichiro Ogihara, Eiji Kikuchi, Keisuke Shigeta, +13

Urologic Oncology Seminars and Original Investigations

Pretreatment Neutrophil-to-lymphocyte RatioPrognostic BiomarkersUrologyGenitourinary CancerClinical Responses +6

Tumor budding, a novel prognostic indicator for predicting stage progression in T1 bladder cancers

Keishiro Fukumoto, Eiji Kikuchi, Shuji Mikami, +4

Cancer Science

Single‐cell RNA‐seq analysis reveals the platinum resistance gene COX7B and the surrogate marker CD63

Nobuyuki Tanaka, Shintaro Katayama, A. K. Reddy, +13

Cancer Medicine

Refraining from Smoking for 15 Years or More Reduced the Risk of Tumor Recurrence in Non-muscle Invasive Bladder Cancer Patients

Koichiro Ogihara, Eiji Kikuchi, Kazuyuki Yuge, +6

Annals of Surgical Oncology

Tobacco CessationTobacco ControlSurgical OncologyUrologyGenitourinary Cancer +9

Does neoadjuvant chemotherapy have therapeutic benefit for node-positive upper tract urothelial carcinoma? Results of a multi-center cohort study

Keisuke Shigeta, Kazuhiro Matsumoto, Koichiro Ogihara, +17

Urologic Oncology Seminars and Original Investigations

Therapeutic BenefitUrologySurgical OncologyDoes Neoadjuvant ChemotherapyGenitourinary Cancer +5

The Preoperative Neutrophil-to-lymphocyte Ratio is a Novel Biomarker for Predicting Worse Clinical Outcomes in Non-muscle Invasive Bladder Cancer Patients with a Previous History of Smoking

Koichiro Ogihara, Eiji Kikuchi, Kazuyuki Yuge, +5

Annals of Surgical Oncology

Tobacco ControlPrognostic BiomarkersSurgical OncologyUrologyPreoperative Neutrophil-to-lymphocyte Ratio +7

A Novel Risk-based Approach Simulating Oncological Surveillance After Radical Nephroureterectomy in Patients with Upper Tract Urothelial Carcinoma

Keisuke Shigeta, Eiji Kikuchi, Takayuki Abe, +10

European Urology Oncology

UrologySurgical OncologyUrologic Cancer EpidemiologyGenitourinary CancerCancer Screening +7

Can urologists introduce the concept of “oligometastasis” for metastatic bladder cancer after total cystectomy?

Koichiro Ogihara, Eiji Kikuchi, Keitaro Watanabe, +10

Oncotarget

Effects of transurethral resection under general anesthesia on tumor recurrence in non-muscle invasive bladder cancer

Yuto Baba, Eiji Kikuchi, Keisuke Shigeta, +8

International Journal of Clinical Oncology