UROPOT: study protocol for a randomized, double-blind phase I/II trial for metabolism-based potentiation of antimicrobial prophylaxis in the urological tract.

Background: Urinary tract catheters, including Double-J or ureteral stents, are prone to bacterial colonization forming biofilms and leading to asymptomatic bacteriuria. In the context of asymptomatic bacteriuria, endourological procedures causing mucosa-inducing lesions can lead to severe infections. Antibiotic prophylaxis is warranted, yet its efficacy is limited by biofilm formation on stents.

Respiratory Complications after Cystectomy with Urinary Diversion: Avoidable Complications or Ineluctable Destiny?

Cystectomy with urinary diversion (CUD) is a highly morbid surgery. Despite implementing an enhanced recovery after surgery (ERAS) protocol, postoperative respiratory complications (PRC) within 30 days after surgery remain frequent. This study aims to identify patients at higher risk of developing PRC after CUD.

Impact of Enhanced Recovery after Surgery Protocol Compliance on Length of Stay, Bowel Recovery and Complications after Radical Cystectomy.

Background: Despite existing standardized surgical techniques and the development of new perioperative care protocols, radical cystectomy (RC) morbidity remains a serious challenge for urologists. Postoperative ileus (POI) is one of the most common postoperative complications, often leading to a longer length of stay (LOS). The aim of our study was to assess the impact of compliance to the Enhanced Recovery After Surgery (ERAS) protocol on bowel recovery, 30-day complications and LOS after RC for bladder cancer (BC).

Intravesical Ty21a treatment of non-muscle invasive bladder cancer induces immune responses that correlate with safety and may be associated to therapy potential.

Background: Standard of care treatment of non-muscle invasive bladder cancer (NMIBC) with intravesical Bacillus Calmette Guérin (BCG) is associated with side effects, disease recurrence/progression and supply shortages. We recently showed in a phase I trial (NCT03421236) that intravesical instillation in patients with NMIBC with the maximal tolerated dose of Ty21a/Vivotif, the oral vaccine against typhoid fever, might have a better safety profile. In the present report, we assessed the immunogenicity of intravesical Ty21a in patients of the clinical trial that had received the maximal tolerated dose and compared it with data obtained in patients that had received standard BCG.

[A Swiss Urological Society register of cystectomies to improve surgical quality].

In the era of highly specialised medicine, the Swiss Urological Society has set up a national register from January 2019 that will prospectively record all data relating to cystectomies. Doctors will be able to use this information to compare their activities at national level, refine surgical techniques and optimise the perioperative management of cystectomy patients. This article presents the register and provides an initial assessment of cystectomy surgery activity in Switzerland over the first four years of its set up.

[Bladder cancer : a comprehensive follow-up for an efficient and personalized care].

Bladder cancer is a common cancer in the Swiss population. The heterogeneous nature of the disease requires long-term oncological monitoring, as well as metabolic and functional follow-up. Patients' quality of life must also be considered during follow-up.

[Radical cystectomy in the geriatric population. Tools for screening postoperative complications].

Radical cystectomy is the gold standard for the treatment of muscle-invasive bladder cancer. Advanced age is only a relative criterion when selecting patients eligible for radical cystectomy, and to reduce post-operative complications, the management of an elderly patient requires a multidisciplinary approach. The role of the geriatrician is therefore essential, in collaboration with the urologist, to ensure appropriate follow-up.

Intravesical Ty21a Treatment of Non-muscle-invasive Bladder Cancer Shows a Good Safety Profile.

Unlabelled: Standard-of-care immunotherapy for non-muscle-invasive bladder cancer (NMIBC) with intravesical Bacillus CalmettteGuérin (BCG) is associated with adverse events (AEs), disease recurrence/progression, and supply shortages. Preclinical data have shown that intravesical instillation of Ty21a/Vivotif, the oral vaccine against typhoid fever, may be an effective and safer alternative to BCG. We assessed the safety of intravesical Ty21a in NMIBC.

Double Positive CD4CD8 T Cells Are Enriched in Urological Cancers and Favor T Helper-2 Polarization.

The immune system plays a central role in cancer development, showing both anti-tumor and pro-tumor activities depending on the immune cell subsets and the disease context. While CD8 T cells are associated with a favorable outcome in most cancers, only T helper type 1 (Th1) CD4 T cells play a protective role, in contrast to Th2 CD4 T cells. Double positive (DP) CD4CD8 T cells remain understudied, although they were already described in human cancers, with conflicting data regarding their role.

Tumour-derived PGD2 and NKp30-B7H6 engagement drives an immunosuppressive ILC2-MDSC axis.

Group 2 innate lymphoid cells (ILC2s) are involved in human diseases, such as allergy, atopic dermatitis and nasal polyposis, but their function in human cancer remains unclear. Here we show that, in acute promyelocytic leukaemia (APL), ILC2s are increased and hyper-activated through the interaction of CRTH2 and NKp30 with elevated tumour-derived PGD2 and B7H6, respectively. ILC2s, in turn, activate monocytic myeloid-derived suppressor cells (M-MDSCs) via IL-13 secretion.

ILC2-modulated T cell-to-MDSC balance is associated with bladder cancer recurrence.

Non-muscle-invasive bladder cancer (NMIBC) is a highly recurrent tumor despite intravesical immunotherapy instillation with the bacillus Calmette-Guérin (BCG) vaccine. In a prospective longitudinal study, we took advantage of BCG instillations, which increase local immune infiltration, to characterize immune cell populations in the urine of patients with NMIBC as a surrogate for the bladder tumor microenvironment. We observed an infiltration of neutrophils, T cells, monocytic myeloid-derived suppressor cells (M-MDSCs), and group 2 innate lymphoid cells (ILC2).

Immunoregulation of Dendritic Cell Subsets by Inhibitory Receptors in Urothelial Cancer.

Unlabelled: Blockade of inhibitory receptors (IRs) overexpressed by T cells can activate antitumor immune responses, resulting in the most promising therapeutic approaches, particularly in bladder cancer, currently able to extend patient survival. Thanks to their ability to cross-present antigens to T cells, dendritic cells (DCs) are an immune cell population that plays a central role in the generation of effective antitumor T-cell responses. While IR function and expression have been investigated in T cells, very few data are available for DCs.