Istituto Oncologico Veneto

Viral infections with gastrointestinal involvement remain a significant global health burden with limited therapeutic options. While probiotics show antiviral potential, their impact on primary human intestinal epithelial defenses is poorly defined. This study utilized human intestinal organoid-derived monolayers (ODMs), generated from the non-inflamed mucosa of patients with inflammatory bowel disease, to examine how Bifidobacterium animalis ssp. lactis BB-12 (BB-12) and Lacticaseibacillus rhamnosus GG (LGG) modulate mucosal antiviral pathways. Unlike conventional Caco-2 cells, ODMs preserved physiological cellular diversity and intact innate signaling. Expression of viral receptors and interferon (IFN)-stimulated genes (ISGs) was quantified by RT-qPCR, while the effector 2'-5'-oligoadenylate synthetase 1 (OAS1) was also assessed by immunofluorescence and flow cytometry. Both probiotic strains modulated IFN-associated pathways; however, BB-12 induced a markedly stronger antiviral transcriptional response than LGG. Notably, OAS1 exhibited cell type-specific regulation; while goblet cells showed high basal levels, both probiotics enhanced OAS1 expression selectively in ileal enterocytes. Despite this shared effect, only BB-12 pretreatment significantly restricted Influenza A (H1N1) replication in ileal ODMs, whereas LGG did not significantly affect viral replication. These findings establish human ODMs as a superior platform for probiotic immunology, suggesting that BB-12 more effectively shapes epithelial antiviral "set-points" and highlighting OAS1 as a sensitive component of a broader antiviral program.

Breast surgery is a cornerstone of breast cancer (BC) treatment and has distinctive features that distinguish it from other subspecialties within general surgery. BC management requires multidisciplinary competencies, with specialized training and dedicated care shown to improve patient outcomes. Breast surgery training should become a critical priority within residency programs. We conducted a cross-sectional survey during the 2025 Italian Society of Breast Surgeon (ANISC) annual meeting, to explore the opinions of breast surgery consultants and residentsregarding the current state of breast surgery training, as well as future perspectives for its improvement. A total of 126 participants (77% consultants, 23% residents) completed the survey. Most of the participants (49.2%) worked in medium-volume Breast Units and had > 10 years of clinical practice (45.2%). Overall, 67.5% of respondents judged their training only partially satisfactory, while 23.8% were completely dissatisfied. The majority (58.7%) supported a hybrid model with three years of general surgery followed by two years exclusively dedicated to breast surgery. Most respondents endorsed mandatory training periods in complementary specialties (79.4%) and rotations in peripheral Breast Units (69.8%). Notably, 88.1% favored the development of a vertical breast surgeon profile, capable of independently managing both oncologic and reconstructive procedures. This is the first national survey exploring breast care professionals’ perspectives on surgical training in Italy. Only 8.7% considered the current system adequate to meet clinical needs. The strong demand for structured and specialized programs, together with the recognition of a vertical breast surgeon figure, highlights the urgent need to redefine breast surgery training pathway.

Background/Objectives: Oral mucositis (OM) is a common complication in onco-hematological patients undergoing chemotherapy and hematopoietic stem cell transplantation, negatively affecting comfort, nutrition, and quality of life. Despite existing assessment tools and recommendations, OM management-particularly non-pharmacological approaches-remains inconsistent, and evidence on nurses' perspectives and contextual factors is limited. This study explored nurses' perceptions and experiences regarding non-pharmacological treatments for OM, including educational needs and barriers and facilitators to implementation in clinical practice. Methods: A qualitative descriptive study using inductive content analysis was conducted. Semi-structured interviews were carried out with nurses working in onco-hematological settings in Italy. Data were analysed according to the Elo and Kyngäs framework. Results: Twelve nurses with extensive experience in onco-hematology and transplant care participated in the study. Five main themes emerged: (1) education and training pathways; (2) approaches to mucositis management; (3) nursing competence in OM care; (4) interprofessional collaboration; and (5) governance of practice, including protocols and guidelines. Findings highlighted strong experiential competence, high levels of nursing autonomy in assessment and patient education, and effective interprofessional collaboration, particularly in specialised settings. However, training pathways were predominantly informal, and the availability and use of protocols varied widely across clinical contexts. Conclusions: Non-pharmacological management of OM appears to be sustained primarily by advanced nursing competence and a specialised clinical culture rather than by structured education and standardised governance. Addressing educational gaps and promoting shared protocols may enhance the consistency, quality, and equity of supportive care while ensuring that the findings are clearly reflective of nurses' experiences.

SARS-CoV-2, the causative agent of COVID-19, remains a global concern due to gaps in understanding its pathogenesis. Peptidyl-arginine deiminases (PADs) are emerging as key regulators of viral replication and inflammation. PADs catalyze the conversion of arginine into citrulline, a modification linked to autoimmune diseases. Here, we show that PAD-mediated citrullination plays a crucial role in SARS-CoV-2 infection. Using human cell lines and in K18-hACE2 transgenic mice infected with different SARS-CoV-2 strains, we demonstrate that viral replication is associated with increased PAD4 expression. Mass spectrometry shows 170 distinct differentially citrullinated proteins in infected cells and tissues. Importantly, PAD4 inhibition significantly reduces viral replication and restores a citrullination profile comparable to that of uninfected mice. These findings suggest that SARS-CoV-2 exploits PAD-mediated citrullination to enhance replication and inflammation. Thus, targeting PAD4 may represent a viable strategy to curb viral spread and mitigate COVID-19-associated hyperinflammation.