The present invention is directed to bladder cancer specific ligand peptides, comprising the amino acid sequence X1DGRX5GF (SEQ ID NO: 1), and methods of their use, e.g., for imaging detection for diagnosis of bladder, tumor localization to guide transurethral resection of bladder cancer, imaging detection of bladder cancer for follow-up after the initial treatment that can replace or complement costly cystoscopy, imaging detection of metastatic bladder cancer, and targeted therapy for superficial and metastatic bladder cancer.本発明は、アミノ酸配列X1DGRX5GF (SEQ ID NO:1)を含む膀胱がん特異的なリガンドペプチド、ならびに、例えば、膀胱の診断のための画像化検出、経尿道的膀胱がん切除術をガイドするための腫瘍局在、費用のかかる膀胱鏡検査に代わりうるまたはそれを補完しうる初期処置後の経過観察のための膀胱がんの画像化検出、転移性膀胱がんの画像化検出、および表在性かつ転移性の膀胱がんの標的療法のための、その使用の方法に向けられる。
