Gastro-Entero-Pancreatic Neuroendocrine Tumors: From Challenges in Basic Science to Controversies in Clinical Practice

A special issue of Cells (ISSN 2073-4409). This special issue belongs to the section "Cell Signaling".

Deadline for manuscript submissions: closed (20 May 2022) | Viewed by 3795

Special Issue Editors


E-Mail Website
Guest Editor
Division of Gastroenterology, San Gerardo Hospital, University of Milano-Bicocca School of Medicine, 20900 Monza, Italy
Interests: gastroenterology; inflammatory bowel diseases; hepatology; neuroendocrine tumors
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Division of Gastroenterology, San Gerardo Hospital, University of Milano-Bicocca School of Medicine, 20900 Monza, Italy
Interests: gastroenterology; inflammatory bowel diseases; hepatology; neuroendocrine tumors
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Neuroendocrine tumors (NETs) are heterogeneous neoplasms that originate from the neuroendocrine cells of the diffuse endocrine system scattered throughout the entire body. The molecular mechanisms involved in their carcinogenesis are still far from being understood.

Recent genome-wide sequencing efforts have given important and innovative information on the molecular landscape of NETs. Some molecular mechanisms, such as chromatin remodeling and cell cycle control pathways, are described as major drivers of this disease. Moreover, the observed deregulation of Akt/mTOR pathways has been used to design targeted therapies that have proven efficacy in clinical trials.

Further progress in understanding the molecular mechanisms involved in NET carcinogenesis with their possible translational aspect and clinical applications represents an unmet need for planning tailored surgical or medical management of NET patients, as it could open important implications in the development of novel biology-based effective treatments.

This Special Issue aims to depict the recent advantages in the knowledge of the molecular aspects of gastrointestinal NETs, as well as their application in diagnosis, management and treatment of these tumors.

Prof. Dr. Pietro Invernizzi
Dr. Sara Massironi
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Cells is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • neuroendocrine tumors
  • signal transduction pathways
  • transcriptomes
  • molecular biology
  • precision medicine

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Research

11 pages, 1470 KiB  
Article
Intratumor Microbiome in Neuroendocrine Neoplasms: A New Partner of Tumor Microenvironment? A Pilot Study
by Sara Massironi, Federica Facciotti, Federica Cavalcoli, Chiara Amoroso, Emanuele Rausa, Giovanni Centonze, Fulvia Milena Cribiù, Pietro Invernizzi and Massimo Milione
Cells 2022, 11(4), 692; https://doi.org/10.3390/cells11040692 - 16 Feb 2022
Cited by 10 | Viewed by 2921
Abstract
Neuroendocrine neoplasms (NENs) are rare neoplasms with heterogeneous clinical behavior. Alteration in human microbiota was reported in association with carcinogenesis in different solid tumors. However, few studies addressed the role of microbiota in NEN. We here aimed at evaluating the presence of bacterial [...] Read more.
Neuroendocrine neoplasms (NENs) are rare neoplasms with heterogeneous clinical behavior. Alteration in human microbiota was reported in association with carcinogenesis in different solid tumors. However, few studies addressed the role of microbiota in NEN. We here aimed at evaluating the presence of bacterial infiltration in neuroendocrine tumoral tissue. To assess the presence of bacteria, 20 specimens from pancreatic NEN (pan-NEN) and 20 from intestinal NEN (I-NEN) were evaluated through Fluorescent In situ Hybridization and confocal microscopy. Demographic data, pre-operative investigations, operative findings, pathological diagnosis, follow-up, and survival data were evaluated. Among I-NEN, bacteria were detected in 15/20 (75%) specimens, with high variability in microbial distribution. In eight patients, a high infiltration of microorganisms was observed. Among pan-NEN, 18/20 (90%) showed microorganisms’ infiltration, with a homogeneous microbial distribution. Bacterial localization in pan-NEN was observed in the proximity of blood vessels. A higher bacterial infiltration in the tumoral specimen as compared with non-tumoral tissue was reported in 10/20 pan-NEN (50%). No significant differences were observed in mean bacterial count according to age, sex, ki67%, site, tumor stage. Mean bacterial count did not result to be a predictor of disease-specific survival. This preliminary study demonstrates the presence of a significant microbiota in the NEN microenvironment. Further research is needed to investigate the potential etiological or clinical role of microbiota in NEN. Full article
Show Figures

Figure 1

Back to TopTop