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Eissa MM, Gaafar MR, Younis LK, Ismail CA, El Skhawy N. Prophylactic antineoplastic activity of Toxoplasma gondii RH derived antigen against ehrlich solid carcinoma with evidence of shared antigens by comparative immunoblotting. Infect Agent Cancer 2023; 18:21. [PMID: 37029378 PMCID: PMC10082516 DOI: 10.1186/s13027-023-00500-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 03/22/2023] [Indexed: 04/09/2023] Open
Abstract
BACKGROUND With cancer cases escalation, an urgent request to develop novel combating strategies arise. Pathogen-based cancer-immunotherapy is getting more consideration. Autoclaved parasitic antigens seem promising candidates, taking steadily their first steps. Our aim was to examine the prophylactic antineoplastic activity of autoclaved Toxoplasma vaccine (ATV) and to test for the shared antigen theory between Toxoplasma gondii and cancer cells. METHODS Mice were immunized with ATV followed by Ehrlich solid carcinoma (ESC) inoculation. Tumor weight, volume, histopathology, and immunohistochemistry for CD8+ T cells, Treg cells and VEGF were assessed. In addition, the proposed shared antigen theory between parasites and cancer was also verified using SDS-PAGE and immunoblotting. RESULTS Results revealed powerful prophylactic activity of ATV with 13.3% inhibition of ESC incidence, significant reduction in tumor weight and volume in ATV vaccinated mice. Immunologically, significantly higher CD8+T cells and lower FOXP3+ Treg cells surrounded and infiltrated ESC in ATV immunized mice with higher CD8+T/Treg cells ratio and significant antiangiogenic effect. Moreover, SDS-PAGE and immunoblotting showed four shared bands between Ehrlich carcinoma and ATV of approximate molecular weights 60, 26, 22 and 12.5 KDa. CONCLUSION Exclusively, we demonstrated a prophylactic antineoplastic activity of autoclaved Toxoplasma vaccine against ESC. Moreover, to the best of our knowledge this is the first report highlighting the existence of cross-reactive antigens between Toxoplasma gondi parasite and cancer cells of Ehrlich carcinoma.
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Affiliation(s)
- Maha M Eissa
- Department of Medical Parasitology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Maha R Gaafar
- Department of Medical Parasitology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Layla K Younis
- Department of Pathology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Cherine A Ismail
- Department of Clinical Pharmacology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Nahla El Skhawy
- Department of Medical Parasitology, Faculty of Medicine, Alexandria University, Alexandria, Egypt.
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Ismail CA, Eissa MM, Gaafar MR, Younis LK, El Skhawy N. Toxoplasma gondii-derived antigen modifies tumor microenvironment of Ehrlich solid carcinoma murine model and enhances immunotherapeutic activity of cyclophosphamide. Med Oncol 2023; 40:136. [PMID: 37014499 PMCID: PMC10073061 DOI: 10.1007/s12032-023-01994-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 03/08/2023] [Indexed: 04/05/2023]
Abstract
Pathogen-based cancer vaccine is a promising immunotherapeutic weapon to stimulate cancer immunosuppressive state. Toxoplasma gondii is a potent immunostimulant, and low-dose infection was linked to cancer resistance. Our goal was to evaluate the therapeutic antineoplastic activity of autoclaved Toxoplasma vaccine (ATV) against Ehrlich solid carcinoma (ESC) in mice in reference to and in combination with low-dose cyclophosphamide (CP), a cancer immunomodulator. Mice inoculation with ESC was followed by applying different treatment modalities including ATV, CP, and CP/ATV. We evaluated the impact of the different treatments on liver enzymes and pathology, tumor weight, volume, and histopathological changes. Using immunohistochemistry, we evaluated CD8+ T cell, FOXP3+ Treg, CD8+/Treg outside and inside ESC, and angiogenesis. Results showed significant tumor weights and volumes reduction with all treatments with 13.3% inhibition of tumor development upon combined CP/ATV use. Significant necrosis and fibrosis were noted in ESC by all treatments with improved hepatic functions versus non-treated control. Although ATV was almost equivalent to CP in tumor gross and histopathology, it promoted an immunostimulatory activity with significant Treg cells depletion outside ESC and CD8+ T cells infiltration inside ESC with higher CD8+ T/Treg ratio inside ESC superior to CP. Combined with CP, ATV exhibited significant synergistic immunotherapeutic and antiangiogenic action compared to either treatment alone with significant Kupffer cells hyperplasia and hypertrophy. Exclusively, therapeutic antineoplastic and antiangiogenic activity of ATV against ESC was verified that boosted CP immunomodulatory action which highlights a novel biological cancer immunotherapeutic vaccine candidate.
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Affiliation(s)
- Cherine A Ismail
- Department of Clinical Pharmacology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Maha M Eissa
- Department of Medical Parasitology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Maha R Gaafar
- Department of Medical Parasitology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Layla K Younis
- Department of Pathology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Nahla El Skhawy
- Department of Medical Parasitology, Faculty of Medicine, Alexandria University, Alexandria, Egypt.
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3
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McCarthy PM, Valdera FA, Smolinsky TR, Adams AM, O’Shea AE, Thomas KK, Van Decar S, Carpenter EL, Tiwari A, Myers JW, Hale DF, Vreeland TJ, Peoples GE, Stojadinovic A, Clifton GT. Tumor infiltrating lymphocytes as an endpoint in cancer vaccine trials. Front Immunol 2023; 14:1090533. [PMID: 36960052 PMCID: PMC10029975 DOI: 10.3389/fimmu.2023.1090533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Accepted: 02/14/2023] [Indexed: 03/09/2023] Open
Abstract
Checkpoint inhibitors have invigorated cancer immunotherapy research, including cancer vaccination. Classic early phase trial design and endpoints used in developing chemotherapy are not suited for evaluating all forms of cancer treatment. Peripheral T cell response dynamics have demonstrated inconsistency in assessing the efficacy of cancer vaccination. Tumor infiltrating lymphocytes (TILs), reflect the local tumor microenvironment and may prove a superior endpoint in cancer vaccination trials. Cancer vaccines may also promote success in combination immunotherapy treatment of weakly immunogenic tumors. This review explores the impact of TILs as an endpoint for cancer vaccination in multiple malignancies, summarizes the current literature regarding TILs analysis, and discusses the challenges of providing validity and a standardized implementation of this approach.
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Affiliation(s)
- Patrick M. McCarthy
- Department of Surgery, Brooke Army Medical Center, Ft. Sam Houston, TX, United States
| | - Franklin A. Valdera
- Department of Surgery, Brooke Army Medical Center, Ft. Sam Houston, TX, United States
| | - Todd R. Smolinsky
- Department of Surgery, Brooke Army Medical Center, Ft. Sam Houston, TX, United States
- *Correspondence: Todd R. Smolinsky, ; Elizabeth L. Carpenter,
| | - Alexandra M. Adams
- Department of Surgery, Brooke Army Medical Center, Ft. Sam Houston, TX, United States
| | - Anne E. O’Shea
- Department of Surgery, Brooke Army Medical Center, Ft. Sam Houston, TX, United States
| | - Katryna K. Thomas
- Department of Surgery, Brooke Army Medical Center, Ft. Sam Houston, TX, United States
| | - Spencer Van Decar
- Department of Surgery, Brooke Army Medical Center, Ft. Sam Houston, TX, United States
| | - Elizabeth L. Carpenter
- Department of Surgery, Brooke Army Medical Center, Ft. Sam Houston, TX, United States
- *Correspondence: Todd R. Smolinsky, ; Elizabeth L. Carpenter,
| | - Ankur Tiwari
- Department of Surgery, University of Texas Health Science Center, San Antonio, TX, United States
| | - John W. Myers
- Department of Surgery, Madigan Army Medical Center, Ft. Lewis, WA, United States
| | - Diane F. Hale
- Department of Surgery, Brooke Army Medical Center, Ft. Sam Houston, TX, United States
| | - Timothy J. Vreeland
- Department of Surgery, Brooke Army Medical Center, Ft. Sam Houston, TX, United States
| | | | | | - Guy T. Clifton
- Department of Surgery, Brooke Army Medical Center, Ft. Sam Houston, TX, United States
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Fournier L, de Geus-Oei LF, Regge D, Oprea-Lager DE, D’Anastasi M, Bidaut L, Bäuerle T, Lopci E, Cappello G, Lecouvet F, Mayerhoefer M, Kunz WG, Verhoeff JJC, Caruso D, Smits M, Hoffmann RT, Gourtsoyianni S, Beets-Tan R, Neri E, deSouza NM, Deroose CM, Caramella C. Twenty Years On: RECIST as a Biomarker of Response in Solid Tumours an EORTC Imaging Group - ESOI Joint Paper. Front Oncol 2022; 11:800547. [PMID: 35083155 PMCID: PMC8784734 DOI: 10.3389/fonc.2021.800547] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Accepted: 11/30/2021] [Indexed: 12/15/2022] Open
Abstract
Response evaluation criteria in solid tumours (RECIST) v1.1 are currently the reference standard for evaluating efficacy of therapies in patients with solid tumours who are included in clinical trials, and they are widely used and accepted by regulatory agencies. This expert statement discusses the principles underlying RECIST, as well as their reproducibility and limitations. While the RECIST framework may not be perfect, the scientific bases for the anticancer drugs that have been approved using a RECIST-based surrogate endpoint remain valid. Importantly, changes in measurement have to meet thresholds defined by RECIST for response classification within thus partly circumventing the problems of measurement variability. The RECIST framework also applies to clinical patients in individual settings even though the relationship between tumour size changes and outcome from cohort studies is not necessarily translatable to individual cases. As reproducibility of RECIST measurements is impacted by reader experience, choice of target lesions and detection/interpretation of new lesions, it can result in patients changing response categories when measurements are near threshold values or if new lesions are missed or incorrectly interpreted. There are several situations where RECIST will fail to evaluate treatment-induced changes correctly; knowledge and understanding of these is crucial for correct interpretation. Also, some patterns of response/progression cannot be correctly documented by RECIST, particularly in relation to organ-site (e.g. bone without associated soft-tissue lesion) and treatment type (e.g. focal therapies). These require specialist reader experience and communication with oncologists to determine the actual impact of the therapy and best evaluation strategy. In such situations, alternative imaging markers for tumour response may be used but the sources of variability of individual imaging techniques need to be known and accounted for. Communication between imaging experts and oncologists regarding the level of confidence in a biomarker is essential for the correct interpretation of a biomarker and its application to clinical decision-making. Though measurement automation is desirable and potentially reduces the variability of results, associated technical difficulties must be overcome, and human adjudications may be required.
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Affiliation(s)
- Laure Fournier
- Imaging Group, European Organisation of Research and Treatment in Cancer (EORTC), Brussels, Belgium
- European Society of Oncologic Imaging (ESOI), European Society of Radiology, Vienna, Austria
- Université de Paris, Assistance Publique–Hôpitaux de Paris (AP-HP), Hopital europeen Georges Pompidou, Department of Radiology, Paris Cardiovascular Research Center (PARCC) Unité Mixte de Recherche (UMRS) 970, Institut national de la santé et de la recherche médicale (INSERM), Paris, France
| | - Lioe-Fee de Geus-Oei
- Imaging Group, European Organisation of Research and Treatment in Cancer (EORTC), Brussels, Belgium
- Department of Radiology, Leiden University Medical Center, Leiden, Netherlands
- Biomedical Photonic Imaging Group, University of Twente, Enschede, Netherlands
| | - Daniele Regge
- European Society of Oncologic Imaging (ESOI), European Society of Radiology, Vienna, Austria
- Department of Surgical Sciences, University of Turin, Turin, Italy
- Radiology Unit, Candiolo Cancer Institute, Fondazione del Piemonte per l’Oncologia-Istituto Di Ricovero e Cura a Carattere Scientifico (FPO-IRCCS), Turin, Italy
| | - Daniela-Elena Oprea-Lager
- Imaging Group, European Organisation of Research and Treatment in Cancer (EORTC), Brussels, Belgium
- Department of Radiology & Nuclear Medicine, Cancer Centre Amsterdam, Amsterdam University Medical Centers [Vrije Universiteit (VU) University], Amsterdam, Netherlands
| | - Melvin D’Anastasi
- European Society of Oncologic Imaging (ESOI), European Society of Radiology, Vienna, Austria
- Medical Imaging Department, Mater Dei Hospital, University of Malta, Msida, Malta
| | - Luc Bidaut
- Imaging Group, European Organisation of Research and Treatment in Cancer (EORTC), Brussels, Belgium
- College of Science, University of Lincoln, Lincoln, United Kingdom
| | - Tobias Bäuerle
- European Society of Oncologic Imaging (ESOI), European Society of Radiology, Vienna, Austria
- Institute of Radiology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Egesta Lopci
- Imaging Group, European Organisation of Research and Treatment in Cancer (EORTC), Brussels, Belgium
- Nuclear Medicine Unit, Istituto Di Ricovero e Cura a Carattere Scientifico (IRCCS) – Humanitas Research Hospital, Milan, Italy
| | - Giovanni Cappello
- Department of Surgical Sciences, University of Turin, Turin, Italy
- Radiology Unit, Candiolo Cancer Institute, Fondazione del Piemonte per l’Oncologia-Istituto Di Ricovero e Cura a Carattere Scientifico (FPO-IRCCS), Turin, Italy
| | - Frederic Lecouvet
- Imaging Group, European Organisation of Research and Treatment in Cancer (EORTC), Brussels, Belgium
- Department of Radiology, Institut de Recherche Expérimentale et Clinique (IREC), Cliniques Universitaires Saint Luc, Université Catholique de Louvain (UCLouvain), Brussels, Belgium
| | - Marius Mayerhoefer
- European Society of Oncologic Imaging (ESOI), European Society of Radiology, Vienna, Austria
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, United States
- Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria
| | - Wolfgang G. Kunz
- Imaging Group, European Organisation of Research and Treatment in Cancer (EORTC), Brussels, Belgium
- European Society of Oncologic Imaging (ESOI), European Society of Radiology, Vienna, Austria
- Department of Radiology, University Hospital, Ludwig Maximilian University (LMU) Munich, Munich, Germany
| | - Joost J. C. Verhoeff
- Imaging Group, European Organisation of Research and Treatment in Cancer (EORTC), Brussels, Belgium
- Department of Radiotherapy, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
| | - Damiano Caruso
- European Society of Oncologic Imaging (ESOI), European Society of Radiology, Vienna, Austria
- Department of Medical-Surgical Sciences and Translational Medicine, Sapienza University of Rome, Rome, Italy
| | - Marion Smits
- Imaging Group, European Organisation of Research and Treatment in Cancer (EORTC), Brussels, Belgium
- Department of Radiology & Nuclear Medicine, Erasmus MC, University Medical Centre Rotterdam, Rotterdam, Netherlands
- Brain Tumour Centre, Erasmus Medical Centre (MC) Cancer Institute, Rotterdam, Netherlands
| | - Ralf-Thorsten Hoffmann
- European Society of Oncologic Imaging (ESOI), European Society of Radiology, Vienna, Austria
- Institute and Policlinic for Diagnostic and Interventional Radiology, University Hospital, Carl-Gustav-Carus Technical University Dresden, Dresden, Germany
| | - Sofia Gourtsoyianni
- European Society of Oncologic Imaging (ESOI), European Society of Radiology, Vienna, Austria
- Department of Radiology, School of Medicine, National and Kapodistrian University of Athens, Areteion Hospital, Athens, Greece
| | - Regina Beets-Tan
- European Society of Oncologic Imaging (ESOI), European Society of Radiology, Vienna, Austria
- Department of Radiology, The Netherlands Cancer Institute, Amsterdam, Netherlands
- School For Oncology and Developmental Biology (GROW) School for Oncology and Developmental Biology, Maastricht University, Maastricht, Netherlands
| | - Emanuele Neri
- European Society of Oncologic Imaging (ESOI), European Society of Radiology, Vienna, Austria
- Diagnostic and Interventional Radiology, Department of Translational Research and of New Surgical and Medical Technologies, University of Pisa, Pisa, Italy
| | - Nandita M. deSouza
- Imaging Group, European Organisation of Research and Treatment in Cancer (EORTC), Brussels, Belgium
- Division of Radiotherapy and Imaging, The Institute of Cancer Research and Royal Marsden National Health Service (NHS) Foundation Trust, London, United Kingdom
- European Imaging Biomarkers Alliance (EIBALL), European Society of Radiology, Vienna, Austria
- Quantitative Imaging Biomarkers Alliance, Radiological Society of North America, Oak Brook, IL, United States
| | - Christophe M. Deroose
- Imaging Group, European Organisation of Research and Treatment in Cancer (EORTC), Brussels, Belgium
- Nuclear Medicine, University Hospitals Leuven, Leuven, Belgium
- Nuclear Medicine & Molecular Imaging, Department of Imaging and Pathology, Katholieke Universiteit (KU) Leuven, Leuven, Belgium
| | - Caroline Caramella
- Imaging Group, European Organisation of Research and Treatment in Cancer (EORTC), Brussels, Belgium
- Radiology Department, Hôpital Marie Lannelongue, Groupe Hospitalier Paris Saint Joseph Centre International des Cancers Thoraciques, Université Paris-Saclay, Le Plessis-Robinson, France
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Meric-Bernstam F, Larkin J, Tabernero J, Bonini C. Enhancing anti-tumour efficacy with immunotherapy combinations. Lancet 2021; 397:1010-1022. [PMID: 33285141 DOI: 10.1016/s0140-6736(20)32598-8] [Citation(s) in RCA: 170] [Impact Index Per Article: 56.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 08/11/2020] [Accepted: 08/24/2020] [Indexed: 12/18/2022]
Abstract
Several tumour types are responsive to immunotherapy, as shown by regulatory approvals for immune checkpoint inhibitors. However, many patients either do not respond or do not have durable clinical benefit. Thus, there is great interest in developing predictors of response to immunotherapy and rational combination therapies that can enhance efficacy by overcoming primary and acquired resistance. In this Review, we provide an assessment of immunotherapy response biomarkers that can identify patients who will benefit from monotherapy rather than from combinations. We review the rationale for combination therapy and different strategies, including combinations with chemotherapy, targeted therapy, radiation therapy, intratumoural therapies, other immunomodulators, and adaptive cell therapy, including chimeric antigen T-cell receptors and other novel T-cell receptor-based therapies. There are many combination partners in development; therefore, a programmatic approach is needed to develop a framework for biomarker-driven combination therapy selection.
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Affiliation(s)
- Funda Meric-Bernstam
- Department of Investigational Cancer Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
| | - James Larkin
- Cancer Services, Royal Marsden NHS Foundation Trust, London, UK
| | - Josep Tabernero
- Medical Oncology Department, Vall d'Hebron Institute of Oncology, Barcelona, Spain
| | - Chiara Bonini
- Experimental Hematology Unit, Vita-Salute San Raffaele University, Milan, Italy; Experimental Hematology Unit, IRCCS Ospedale San Raffaele Scientific Institute, Milan, Italy
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Fanciulli G, Di Molfetta S, Dotto A, Florio T, Feola T, Rubino M, de Cicco F, Colao A, Faggiano A. Emerging Therapies in Pheochromocytoma and Paraganglioma: Immune Checkpoint Inhibitors in the Starting Blocks. J Clin Med 2020; 10:E88. [PMID: 33383673 PMCID: PMC7795591 DOI: 10.3390/jcm10010088] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 12/20/2020] [Accepted: 12/25/2020] [Indexed: 02/08/2023] Open
Abstract
Pheochromocytoma and paraganglioma are neuroendocrine neoplasms, originating in the adrenal medulla and in parasympathetic and sympathetic autonomic nervous system ganglia, respectively. They usually present as localized tumours curable with surgery. However, these tumours may exhibit heterogeneous clinical course, ranging from no/minimal progression to aggressive (progressive/metastatic) behavior. For this setting of patients, current therapies are unsatisfactory. Immune checkpoint inhibitors have shown outstanding results for several types of solid cancers. We therefore aimed to summarize and discuss available data on efficacy and safety of current FDA-approved immune checkpoint inhibitors in patients with pheochromocytoma and paraganglioma. After an extensive search, we found 15 useful data sources (four full-published articles, four supplements of scientific journals, seven ongoing registered clinical trials). The data we detected, even with the limit of the small number of patients treated, make a great expectation on the therapeutic use of immune checkpoint inhibitors. Besides, the newly detected predictors of response will (hopefully) be of great helps in selecting the subset of patients that might benefit the most from this class of drugs. Finally, new trials are in the starting blocks, and they are expected to shed in the next future new light on a therapy, which is considered a milestone in oncology.
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Affiliation(s)
- Giuseppe Fanciulli
- NET Unit, Department of Medical, Surgical and Experimental Sciences, University of Sassari—Endocrine Unit, AOU Sassari, 07100 Sassari, Italy
| | - Sergio Di Molfetta
- Department of Emergency and Organ Transplantation, Section of Internal Medicine, Endocrinology, Andrology and Metabolic Diseases, University of Bari Aldo Moro, 70124 Bari, Italy;
| | - Andrea Dotto
- Endocrinology Unit, IRCCS Ospedale Policlinico San Martino, 16132 Genova, Italy;
- Department of Internal Medicine, University of Genova, 16132 Genova, Italy;
| | - Tullio Florio
- Department of Internal Medicine, University of Genova, 16132 Genova, Italy;
- IRCCS Ospedale Policlinico San Martino, 16132 Genova, Italy
| | - Tiziana Feola
- Department of Clinical and Molecular Medicine, Sapienza University of Rome, 00161 Rome, Italy; (T.F.); (A.F.)
- Neuroendocrinology, Neuromed Institute, IRCCS, 86077 Pozzilli (IS), Italy
| | - Manila Rubino
- Division of Gastrointestinal Medical Oncology and Neuroendocrine Tumors, European Institute of Oncology, IEO, IRCCS, 20141 Milan, Italy;
| | - Federica de Cicco
- Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, 80131 Naples, Italy; (F.d.C.); (A.C.)
| | - Annamaria Colao
- Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, 80131 Naples, Italy; (F.d.C.); (A.C.)
| | - Antongiulio Faggiano
- Department of Clinical and Molecular Medicine, Sapienza University of Rome, 00161 Rome, Italy; (T.F.); (A.F.)
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