Hypoxia-tolerant polymeric photosensitizer prodrug for cancer photo-immunotherapy.

Although photodynamic immunotherapy represents a promising therapeutic approach against malignant tumors, its efficacy is often hampered by the hypoxia and immunosuppressive conditions within the tumor microenvironment (TME) following photodynamic therapy (PDT). In this study, we report the design guidelines towards efficient Type-I semiconducting polymer photosensitizer and modify the best-performing polymer into a hypoxia-tolerant polymeric photosensitizer prodrug (HTPS) for cancer photo-immunotherapy. HTPS not only performs Type-I PDT process to partially overcome the limitation of hypoxic tumors in PDT by recycling oxygen but also specifically releases a Signal Transducer and Activator of Transcription-3 (STAT3) inhibitor (Niclosamide) in response to a cancer biomarker in the TME.

Reported outcomes following cytoreductive surgery for colorectal peritoneal metastases: A systematic review to inform evidence-based practice and international consensus.

Aim: Cytoreductive surgery provides a chance for long-term survival and cure in selected patients with colorectal peritoneal metastases. As clinical and academic interest in this field increases, heterogeneity in outcome reporting hinders the valid and meaningful synthesis of data into high-quality meta-analyses. The aim of this systemic review was to investigate variability in outcome reporting following cytoreductive surgery with or without intraperitoneal chemotherapy for colorectal peritoneal metastases.

ChatGPT as a patient education tool in colorectal cancer-An in-depth assessment of efficacy, quality and readability.

Aim: Artificial intelligence (AI) chatbots such as Chat Generative Pretrained Transformer-4 (ChatGPT-4) have made significant strides in generating human-like responses. Trained on an extensive corpus of medical literature, ChatGPT-4 has the potential to augment patient education materials. These chatbots may be beneficial to populations considering a diagnosis of colorectal cancer (CRC).

Denoising proton reference dosimetry spectrum using a large area ionization chamber - physical basis and type A uncertainty.

Reference dosimetry measurement in a pencil beam scanning system can exhibit dose fluctuation due to intra-spill spot positional drift. This results in a noisy reference dosimetry measurement against energy which could introduce errors in monitor unit calibration. The aim of this study is to investigate the impact of smoothing the reference dosimetry measurements on the type A uncertainty.

A matter of survival-patients' and carers' perspectives on the decision to undergo pelvic exenteration surgery for locally advanced and recurrent rectal cancer.

Aim: Pelvic exenteration is the only potentially curative treatment for patients with locally advanced or recurrent rectal cancer. This study aimed to investigate how patients decide to undergo such radical surgery.

Method: This qualitative study employed an exploratory interpretive design informed by hermeneutic philosophy.