1
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Hofland J, Refardt JC, Feelders RA, Christ E, de Herder WW. Approach to the Patient: Insulinoma. J Clin Endocrinol Metab 2024; 109:1109-1118. [PMID: 37925662 PMCID: PMC10940262 DOI: 10.1210/clinem/dgad641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 10/02/2023] [Accepted: 10/27/2023] [Indexed: 11/07/2023]
Abstract
Insulinomas are hormone-producing pancreatic neuroendocrine neoplasms with an estimated incidence of 1 to 4 cases per million per year. Extrapancreatic insulinomas are extremely rare. Most insulinomas present with the Whipple triad: (1) symptoms, signs, or both consistent with hypoglycemia; (2) a low plasma glucose measured at the time of the symptoms and signs; and (3) relief of symptoms and signs when the glucose is raised to normal. Nonmetastatic insulinomas are nowadays referred to as "indolent" and metastatic insulinomas as "aggressive." The 5-year survival of patients with an indolent insulinoma has been reported to be 94% to 100%; for patients with an aggressive insulinoma, this amounts to 24% to 67%. Five percent to 10% of insulinomas are associated with the multiple endocrine neoplasia type 1 syndrome. Localization of the insulinoma and exclusion or confirmation of metastatic disease by computed tomography is followed by endoscopic ultrasound or magnetic resonance imaging for indolent, localized insulinomas. Glucagon-like peptide 1 receptor positron emission tomography/computed tomography or positron emission tomography/magnetic resonance imaging is a highly sensitive localization technique for seemingly occult, indolent, localized insulinomas. Supportive measures and somatostatin receptor ligands can be used for to control hypoglycemia. For single solitary insulinomas, curative surgical excision remains the treatment of choice. In aggressive malignant cases, debulking procedures, somatostatin receptor ligands, peptide receptor radionuclide therapy, everolimus, sunitinib, and cytotoxic chemotherapy can be valuable options.
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Affiliation(s)
- Johannes Hofland
- ENETS Center of Excellence, Department of Internal Medicine, Section of Endocrinology, Erasmus MC and Erasmus MC Cancer Institute, 3015 GD Rotterdam, The Netherlands
| | - Julie C Refardt
- ENETS Center of Excellence, Department of Internal Medicine, Section of Endocrinology, Erasmus MC and Erasmus MC Cancer Institute, 3015 GD Rotterdam, The Netherlands
- ENETS Center of Excellence, Division of Endocrinology, Diabetology and Metabolism, University Hospital Basel, CH-4031 Basel, Switzerland
| | - Richard A Feelders
- ENETS Center of Excellence, Department of Internal Medicine, Section of Endocrinology, Erasmus MC and Erasmus MC Cancer Institute, 3015 GD Rotterdam, The Netherlands
| | - Emanuel Christ
- ENETS Center of Excellence, Division of Endocrinology, Diabetology and Metabolism, University Hospital Basel, CH-4031 Basel, Switzerland
| | - Wouter W de Herder
- ENETS Center of Excellence, Department of Internal Medicine, Section of Endocrinology, Erasmus MC and Erasmus MC Cancer Institute, 3015 GD Rotterdam, The Netherlands
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2
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Friebe L, Freitag MT, Braun M, Nicolas G, Bauman A, Bushnell D, Christ E, Wild D. Peptide Receptor Radionuclide Therapy Is Effective for Clinical Control of Symptomatic Metastatic Insulinoma: A Long-Term Retrospective Analysis. J Nucl Med 2024; 65:228-235. [PMID: 38164592 DOI: 10.2967/jnumed.123.265894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 07/25/2023] [Indexed: 01/03/2024] Open
Abstract
Metastatic insulinoma is a rare malignant neuroendocrine tumor characterized by inappropriate insulin secretion, resulting in life-threatening hypoglycemia, which is often difficult to treat. There is currently very limited information about the efficacy of peptide receptor radionuclide therapy (PRRT) for clinical control of hypoglycemia. The aim of this long-term retrospective study was to evaluate the therapeutic efficacy of PRRT for improving hypoglycemia, to evaluate the change of medication after PRRT, and to calculate progression-free survival (PFS) and overall survival (OS). Methods: Inclusion criteria were histologically proven somatostatin receptor-positive metastatic malignant insulinoma and at least 2 cycles of [90Y]Y-DOTATOC or [177Lu]Lu-DOTATOC therapy from early 2000 to early 2022. A semiquantitative scoring system was used to quantify the severity and frequency of hypoglycemic episodes under background antihypoglycemic therapy (somatostatin analog, diazoxide, everolimus, corticosteroids): score 0, no hypoglycemic episodes; score 1, hypoglycemic events requiring additional conservative treatment with optimization of nutrition; score 2, severe hypoglycemia necessitating hospitalization and combined medication or history of hypoglycemic coma. Hypoglycemic score before and after PRRT was analyzed. Time of benefit was defined as a time range of fewer hypoglycemic episodes in the observation period than at baseline. Information on antihypoglycemic medication before and after therapy, PFS, and OS was recorded. Results: Twenty-six of 32 patients with a total of 106 [90Y]Y-DOTATOC/[177Lu]Lu-DOTATOC cycles were included. The average observation period was 21.5 mo (range, 2.3-107.4 mo). Before therapy, 81% (n = 21) of the patients had a hypoglycemia score of 2 and 19% (n = 5) had a score of 1. After PRRT, 81% of patients (n = 21) had a decreased score, and the remaining 5 patients showed a stable situation. There was temporary worsening of hypoglycemia just after injection of [90Y]Y-DOTATOC/[177Lu]Lu-DOTATOC in 19% of patients. The average time of benefit in the observation period was 17.2 mo (range, 0-70.2 mo). Antihypoglycemic medication reduction was achieved in 58% (n = 15) of patients. The median OS and PFS after the start of PRRT were 19.7 mo (95% CI, 6.5-32.9 mo) and 11.7 mo (95% CI, 4.9-18.5 mo), respectively. Conclusion: To our knowledge, our study included the largest cohort of patients with malignant insulinoma to be evaluated. Long-lasting symptom control and reduction of antihypoglycemic medications were shown in most patients after late-line PRRT.
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Affiliation(s)
- Liene Friebe
- Clinic of Radiology and Nuclear Medicine, University Hospital Basel, Basel, Switzerland
| | - Martin T Freitag
- Clinic of Radiology and Nuclear Medicine, University Hospital Basel, Basel, Switzerland
- ENETS Center of Excellence for Neuroendocrine and Endocrine Tumors, University Hospital Basel, Basel, Switzerland
- Clinic of Nuclear Medicine, University Hospital Freiburg, Freiburg, Germany
| | - Martin Braun
- Clinic of Radiology and Nuclear Medicine, University Hospital Basel, Basel, Switzerland
| | - Guillaume Nicolas
- Clinic of Radiology and Nuclear Medicine, University Hospital Basel, Basel, Switzerland
- ENETS Center of Excellence for Neuroendocrine and Endocrine Tumors, University Hospital Basel, Basel, Switzerland
| | - Andreas Bauman
- Clinic of Radiology and Nuclear Medicine, University Hospital Basel, Basel, Switzerland
| | - David Bushnell
- Division of Nuclear Medicine, Department of Radiology, University of Iowa Hospitals and Clinics, Iowa City, Iowa; and
| | - Emanuel Christ
- ENETS Center of Excellence for Neuroendocrine and Endocrine Tumors, University Hospital Basel, Basel, Switzerland
- Department of Endocrinology, Diabetology, and Metabolism, University Hospital Basel, Basel, Switzerland
| | - Damian Wild
- Clinic of Radiology and Nuclear Medicine, University Hospital Basel, Basel, Switzerland;
- ENETS Center of Excellence for Neuroendocrine and Endocrine Tumors, University Hospital Basel, Basel, Switzerland
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3
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Hofland J, de Herder WW. Effective strategies for adequate control of hormonal secretion in functioning neuroendocrine neoplasms. Best Pract Res Clin Endocrinol Metab 2023; 37:101787. [PMID: 37311669 DOI: 10.1016/j.beem.2023.101787] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Neuroendocrine neoplasms are a unique form of malignancies as they can be accompanied by specific functioning hormonal syndromes that can impair survival and quality of life in patients. Functioning syndromes are defined by the combination of specific clinical signs and symptoms in combination with inappropriately elevated circulating levels of hormones. Clinicians should remain vigilant for the presence of functioning syndromes in neuroendocrine neoplasm patients at presentation as well as during follow-up. The correct diagnostic work-up should be initiated in cases of clinical suspicion of a neuroendocrine neoplasm-associated functioning syndrome. Management of a functional syndrome includes options from supportive, surgical, hormonal and antiproliferative treatment modalities. Here, we review the patient and tumour characteristics for each functioning syndrome that should be taken into account when deciding the optimum treatment strategy in neuroendocrine neoplasm patients.
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Affiliation(s)
- Johannes Hofland
- Department of Internal Medicine, Section of Endocrinology, Erasmus MC Cancer Institute, Rotterdam, the Netherlands.
| | - Wouter W de Herder
- Department of Internal Medicine, Section of Endocrinology, Erasmus MC Cancer Institute, Rotterdam, the Netherlands
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4
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Hofland J, Falconi M, Christ E, Castaño JP, Faggiano A, Lamarca A, Perren A, Petrucci S, Prasad V, Ruszniewski P, Thirlwell C, Vullierme MP, Welin S, Bartsch DK. European Neuroendocrine Tumor Society 2023 guidance paper for functioning pancreatic neuroendocrine tumour syndromes. J Neuroendocrinol 2023; 35:e13318. [PMID: 37578384 DOI: 10.1111/jne.13318] [Citation(s) in RCA: 39] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 05/09/2023] [Accepted: 06/13/2023] [Indexed: 08/15/2023]
Abstract
This ENETS guidance paper aims to provide practical advice to clinicians for the diagnosis, treatment and follow-up of functioning syndromes in pancreatic neuroendocrine tumours (NET). A NET-associated functioning syndrome is defined by the presence of a clinical syndrome combined with biochemical evidence of inappropriately elevated hormonal levels. Different hormonal syndromes can be encountered in pancreatic NET patients, including insulinoma, gastrinoma as well as the rare glucagonoma, VIPoma, ACTHoma, PTHrPoma, carcinoid syndrome, calcitoninoma, GHRHoma and somatostatinoma. The recommendations provided in this paper focus on the biochemical, genetic and imaging work-up as well as therapeutic management of the individual hormonal syndromes in well-differentiated, grade 1-3, functioning NET with the primary tumour originating in the pancreas, and for specific subtypes also in the duodenum.
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Affiliation(s)
- Johannes Hofland
- Department of Internal Medicine, Section of Endocrinology, ENETS Centre of Excellence, Erasmus MC Cancer Institute, Rotterdam, The Netherlands
| | - Massimo Falconi
- Pancreatic Surgery and Transplantation Unit, Pancreas Translational and Clinical Research Centre, ENETS Center of Excellence, San Raffaele Scientific Institute IRCCS, Milan, Italy
| | - Emanuel Christ
- ENETS Centre of Excellence for Neuroendocrine and Endocrine Tumours, University Hospital Basel, Basel, Switzerland
- Department of Endocrinology, Diabetology and Metabolism, University Hospital Basel, Basel, Switzerland
| | - Justo P Castaño
- Maimonides Biomedical Research Institute of Córdoba, Córdoba, Spain
- Department of Cell Biology, Physiology, and Immunology, University of Córdoba, Córdoba, Spain
- Hospital Universitario Reina Sofía, Córdoba, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBERobn), Córdoba, Spain
| | - Antongiulio Faggiano
- Endocrinology Unit, Department of Clinical and Molecular Medicine, Sant'Andrea Hospital, ENETS Centre of Excellence, Sapienza University of Rome, Rome, Italy
| | - Angela Lamarca
- Department of Oncology - OncoHealth Institute, Fundación Jiménez Díaz University Hospital, Madrid, Spain
- Department of Medical Oncology, The Christie NHS Foundation, Manchester, Division of Cancer Sciences, University of Manchester, Manchester, UK
| | - Aurel Perren
- Institute of Pathology, University of Bern, Bern, Switzerland
| | - Simona Petrucci
- Department of Clinical and Molecular Medicine, Faculty of Medicine and Psychology, Sapienza University of Rome, Rome, Italy
- Medical Genetics and Advanced Cell Diagnostics Unit, Sant Andrea University Hospital, Rome, Italy
| | - Vikas Prasad
- Division of Nuclear Medicine, Mallinckrodt Institute of Radiology, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Philippe Ruszniewski
- Department of Pancreatology, FHU MOSAIC, Université Paris Cité - APHP Hôpital Beaujon, Clichy, France
| | | | - Marie-Pierre Vullierme
- Centre Hospitalier Annecy Genevois (CHANGE), Université Paris-Cité, Praticien Hospitalier Imagerie Médicale, Annecy, France
| | - Staffan Welin
- Department of Endocrine Oncology, Uppsala University Hospital, Uppsala, Sweden
| | - Detlef K Bartsch
- Department of Visceral, Thoracic and Vascular Surgery, Phillips-University Marburg and University Hospital Gießen Marburg GmbH, Marburg, Germany
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5
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Oguni K, Fukushima S, Yamamoto Y, Hasegawa K, Hagiya H, Inoshita N, Otsuka F. Preoperative detection of functional somatostatin receptors in a patient with an insulinoma. Clin Case Rep 2023; 11:e7771. [PMID: 37546161 PMCID: PMC10397476 DOI: 10.1002/ccr3.7771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 06/07/2023] [Accepted: 07/25/2023] [Indexed: 08/08/2023] Open
Abstract
Octreotide is used in patients with insulinomas to treat hypoglycemia, and somatostatin receptor (SSTR) 2 expression is important for its efficacy. We report a case of insulinoma in a 50-year-old woman that responded to an octreotide test, showed accumulation in somatostatin scintigraphy, and was positive for SSTR2A on immunostaining.
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Affiliation(s)
- Kohei Oguni
- Department of General MedicineOkayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayamaJapan
| | - Shinnosuke Fukushima
- Department of General MedicineOkayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayamaJapan
| | - Yukichika Yamamoto
- Department of General MedicineOkayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayamaJapan
| | - Kou Hasegawa
- Department of General MedicineOkayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayamaJapan
| | - Hideharu Hagiya
- Department of General MedicineOkayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayamaJapan
| | - Naoko Inoshita
- Department of PathologyMoriyama Memorial HospitalTokyoJapan
| | - Fumio Otsuka
- Department of General MedicineOkayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayamaJapan
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6
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Peltola E, Vesterinen T, Leijon H, Hannula P, Huhtala H, Mäkinen M, Nieminen L, Pirinen E, Rönty M, Söderström M, Arola J, Jaatinen P. Immunohistochemical somatostatin receptor expression in insulinomas. APMIS 2023; 131:152-160. [PMID: 36680557 DOI: 10.1111/apm.13297] [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: 01/06/2023] [Accepted: 01/19/2023] [Indexed: 01/22/2023]
Abstract
Insulinomas are rare pancreatic neuroendocrine tumours. Most patients can be cured with surgery, but patients with a metastatic disease show impaired survival. The aim of this study was to evaluate somatostatin receptor (SSTR) 1-5 expression in insulinomas and to correlate the expression profile with clinicopathological variables and with patient outcome. This retrospective study involved 52 insulinoma patients. After histological re-evaluation, formalin-fixed paraffin-embedded tissue samples were processed into tissue microarrays and stained immunohistochemically with monoclonal SSTR1-5 antibodies. All the 52 tumours (49 non-metastatic, 3 metastatic) expressed at least one SSTR subtype. SSTR2 was expressed most frequently (71%), followed by SSTR3 (33%), SSTR1 (27%), SSTR5 (6%) and SSTR4 (0%). SSTR3 expression was associated with a larger tumour size (median diameter 19 mm vs. 13 mm, p = 0.043), and SSTR3 and SSTR5 expression were associated with impaired overall survival [HR 3.532 (95% CI 1.106-11,277), p = 0.033, and HR 6.805 (95% CI 1.364-33.955), p = 0.019 respectively]. Most insulinomas express SSTR2, which may be utilized in diagnostic imaging, and in planning individualized treatment strategies for insulinoma patients. Further studies are needed to clarify the association between SSTR profile and overall survival.
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Affiliation(s)
- Elina Peltola
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Tiina Vesterinen
- HUS Diagnostic Center, HUSLAB, Department of Pathology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Institute for Molecular Medicine Finland (FIMM), HiLIFE, University of Helsinki, Helsinki, Finland
| | - Helena Leijon
- HUS Diagnostic Center, HUSLAB, Department of Pathology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Päivi Hannula
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Endocrinology, Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Heini Huhtala
- Faculty of Social Sciences, Tampere University, Tampere, Finland
| | - Markus Mäkinen
- Research Unit of Cancer and Translational Medicine, Department of Pathology, University of Oulu and Department of Pathology, Oulu University Hospital, Oulu, Finland
| | - Lasse Nieminen
- Fimlab Laboratories, Pathology Department, Tampere University Hospital, Tampere, Finland
| | - Elina Pirinen
- Department of Clinical Pathology, Kuopio University Hospital, Kuopio, Finland
| | - Mikko Rönty
- HUS Diagnostic Center, HUSLAB, Department of Pathology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Mirva Söderström
- Department of Pathology, Turku University Hospital, Turku, Finland
| | - Johanna Arola
- HUS Diagnostic Center, HUSLAB, Department of Pathology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Pia Jaatinen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland.,Division of Internal Medicine, Seinäjoki Central Hospital, Seinäjoki, Finland
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7
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Melikyan M, Gubaeva D, Shadrina A, Bolmasova A, Kareva M, Tiulpakov A, Efremenkov A, Sokolov Y, Brusgaard K, Christesen HT, Andersen K, Stepanov A, Averyanova J, Makarov S, Gurevich L. Insulinoma in childhood: a retrospective review of 22 patients from one referral centre. Front Endocrinol (Lausanne) 2023; 14:1127173. [PMID: 37152923 PMCID: PMC10155867 DOI: 10.3389/fendo.2023.1127173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 03/27/2023] [Indexed: 05/09/2023] Open
Abstract
Background Insulinomas are very rare in childhood with sparse knowledge on the clinical aspects and the presence of Multiple Endocrine Neoplasia type 1 (MEN1). Methods We conducted a retrospective review of patients diagnosed with insulinoma between 1995 and 2021, presenting to one referral centre in Russia. Clinical, biochemical, genetic, imaging and histological data were collected. In addition, follow-up and family data were obtained. Results A total of twenty-two children aged 5 to 16 years were identified. The median (range) gap between the first hypoglycaemia symptoms and diagnosis was 10 (1-46) months. Twelve children (55%) were misdiagnosed to have epilepsy and were treated with anticonvulsants before hypoglycemia was revealed. Contrast enhanced MRI and/or CT were accurate to localize the lesion in 82% (n=18). Five patients (23%) had multiple pancreatic lesions. All children underwent surgical treatment. The median (range) diameter of removed tumors was 1.5 (0.3-6) cm. Histopathological studies confirmed the presence of insulinoma in all cases. Immunohistochemical studies revealed G2 differentiation grade in 10 out of 17 cases. Two patients were diagnosed with metastatic insulinoma. One of them had metastases at the time of insulinoma diagnosis, while the other was diagnosed with liver metastases eight years after the surgery. Eight children (36%) were found to carry MEN1 mutations, inherited n=5, de novo n=1, no data, n=2. Children with MEN1 had significantly higher number of pancreatic tumors compared to sporadic cases. All of them developed additional MEN1 symptoms during the following 2-13 years. In the five patients with inherited MEN1, seven family members had hitherto undiscovered MEN1 manifestations. Conclusions In this large cohort of children with rare pediatric insulinomas, MEN1 syndrome and G2 tumors were frequent, as well as hitherto undiscovered MEN1 manifestations in family members. Our data emphasize the need of genetic testing in all children with insulinoma and their relatives, even in the absence of any other features, as well as the importance of a prolonged follow-up observation.
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Affiliation(s)
- Maria Melikyan
- Department of Pediatric Endocrinology, Endocrinology Research Center, Moscow, Russia
- Department of Endocrinology, Yerevan State Medical University, Yerevan, Armenia
- Department of pediatrics, Center of Medical Genetics and Primary Health Care, Yerevan, Armenia
- *Correspondence: Maria Melikyan,
| | - Diliara Gubaeva
- Department of Pediatric Endocrinology, Endocrinology Research Center, Moscow, Russia
- Department of Pediatric Endocrinology, Alder Hey Children’s Hospital, Liverpool, United Kingdom
| | - Anna Shadrina
- Department of Pediatric Endocrinology, Endocrinology Research Center, Moscow, Russia
| | - Anna Bolmasova
- Department of Pediatric Endocrinology, Endocrinology Research Center, Moscow, Russia
| | - Maria Kareva
- Department of Pediatric Endocrinology, Endocrinology Research Center, Moscow, Russia
| | - Anatoly Tiulpakov
- Department of Pediatric Endocrinology, Endocrinology Research Center, Moscow, Russia
- Department of Endocrinology, Federal State Budgetary Scientific Institution Research Centre for Medical Genetics (RCMG), Moscow, Russia
| | - Artem Efremenkov
- Department of Pediatric Surgery, Central Clinical Hospital, Moscow, Russia
| | - Yuri Sokolov
- Department of Pediatric Surgery, Endocrinology Research Center, Moscow, Russia
| | - Klaus Brusgaard
- Department of Clinical Genetics, Odense University Hospital, Odense, Denmark
- Odense Pancreas Center OPAC and Steno Diabetes Center Odense, Odense, Denmark
- Department of Endocrinology, Hans Christian Andersen Children’s Hospital, Odense University Hospital, Odense, Denmark
| | - Henrik T. Christesen
- Odense Pancreas Center OPAC and Steno Diabetes Center Odense, Odense, Denmark
- Department of Endocrinology, Hans Christian Andersen Children’s Hospital, Odense University Hospital, Odense, Denmark
- Department of Clinical Research, Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark
| | - Kirstine Andersen
- Odense Pancreas Center OPAC and Steno Diabetes Center Odense, Odense, Denmark
- Department of Endocrinology, Hans Christian Andersen Children’s Hospital, Odense University Hospital, Odense, Denmark
- Department of Clinical Research, Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark
| | - Alexey Stepanov
- Department of Abdominal Surgery, Russian Children's Clinical Hospital, Moscow, Russia
| | - Julia Averyanova
- Department of Abdominal Surgery, Russian Children's Clinical Hospital, Moscow, Russia
| | - Sergey Makarov
- Department of Abdominal Surgery, Russian Children's Clinical Hospital, Moscow, Russia
| | - Larisa Gurevich
- Morphological Department of Oncology, State Budget Health Agency Moscow Region Moscow Regional Research Clinical Institute, Moscow, Russia
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8
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Angelousi A, Koumarianou A, Chatzellis E, Kaltsas G. Resistance of neuroendocrine tumours to somatostatin analogs. Expert Rev Endocrinol Metab 2023; 18:33-52. [PMID: 36651768 DOI: 10.1080/17446651.2023.2166488] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 01/05/2023] [Indexed: 01/13/2023]
Abstract
INTRODUCTION A common feature shared by most neuroendocrine tumors (NETs) is the expression on their surface of somatostatin receptors (SSTRs) that are essential for their pathophysiological regulation, diagnosis, and management. The first-generation synthetic somatostatin analogs (SSAs), octreotide and lanreotide, constitute the cornerstone of treatment for growth hormone secreting pituitary adenomas and functioning, progressive functioning, and non-functioning gastro-entero-pancreatic (GEP-NETs). SSAs exert their mechanism of action through binding to the SSTRs; however, their therapeutic response is frequently attenuated or diminished by the development of resistance. The phenomenon of resistance is complex implicating the presence of additional epigenetic and genetic mechanisms. AREAS COVERED We aim to analyze the molecular, genetic, and epigenetic mechanisms of resistance to SSA treatment. We also summarize recent clinical data related to the development of resistance on conventional and non-conventional modes of administration of the first-generation SSAs and the second-generation SSA pasireotide. We explore mechanisms used to counteract the resistance to SSAs using higher doses or more frequent mode of administration of SSAs and/or combination treatments. EXPERT OPINION There is considerable heterogeneity in the development of resistance to SSAs that is tumor-specific necessitating the delineation of the underlying pathophysiological processes to further expand their therapeutic applications.
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Affiliation(s)
- Anna Angelousi
- First Department of Internal Medicine, Unit of Endocrinology, Laikon General hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Anna Koumarianou
- Hematology Oncology Unit, Fourth Department of Internal Medicine, Attikon University Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Eleftherios Chatzellis
- Endocrinology Diabetes and Metabolism Department, 251 Hellenic Air Force and VA General Hospital, Athens, Greece
| | - Gregory Kaltsas
- First Propaedeutic Department of Internal Medicine, Endocrine Unit, National and Kapodistrian University of Athens, Athens, Greece
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9
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Tartaglia A, Busonero G, Gagliardi L, Boddi V, Pieri F, Nizzoli M. Complete remission of recurrent multiple insulin-producing neuroendocrine tumors of the pancreas with somatostatin analogs: a case report and literature review. Discov Oncol 2022; 13:66. [PMID: 35838801 PMCID: PMC9287506 DOI: 10.1007/s12672-022-00531-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 07/06/2022] [Indexed: 04/17/2023] Open
Abstract
Hyperinsulinemic hypoglycemia is most commonly caused by a single, sporadic insulinoma. Multicentric insulinoma disease (insulinomatosis) as well as metachronous neuroendocrine tumors of the pancreas, known also as neuroendocrine adenomatosis, represent a very rare condition, if not associated with multiple endocrine neoplasia type 1 syndrome (MEN1) or Von Hippel Lindau disease. We report a 9-year follow-up of a 41-year-old woman, initially presenting with hypoglycemic syndrome caused by two insulin-producing tumors, who underwent subtotal pancreasectomy in 2012, with histology compatible with multiple small neuroendocrine tumors. An approximately 1-cm insulin-producing tumor recurred at subsequent biochemical and radiological follow-up, and was cured with the somatostatin analog octreotide as a single treatment, until remission of symptoms and complete regression of the pancreatic lesion achieved after only 16 months of treatment. The possible mechanisms for these findings are discussed and the literature is briefly reviewed.
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Affiliation(s)
- Andreas Tartaglia
- Unit of Endocrinology and Metabolism, Morgagni Hospital, Via Carlo Forlanini 34, 47100, Forlì, Italy.
| | - Giulia Busonero
- Unit of Endocrinology and Metabolism, Morgagni Hospital, Via Carlo Forlanini 34, 47100, Forlì, Italy
| | - Lorenza Gagliardi
- Unit of Endocrinology and Metabolism, Morgagni Hospital, Via Carlo Forlanini 34, 47100, Forlì, Italy
| | - Valentina Boddi
- Unit of Endocrinology and Metabolism, Morgagni Hospital, Via Carlo Forlanini 34, 47100, Forlì, Italy
| | | | - Maurizio Nizzoli
- Unit of Endocrinology and Metabolism, Morgagni Hospital, Via Carlo Forlanini 34, 47100, Forlì, Italy
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10
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Havasi A, Sur D, Cainap SS, Lungulescu CV, Gavrilas LI, Cainap C, Vlad C, Balacescu O. Current and New Challenges in the Management of Pancreatic Neuroendocrine Tumors: The Role of miRNA-Based Approaches as New Reliable Biomarkers. Int J Mol Sci 2022; 23:1109. [PMID: 35163032 PMCID: PMC8834851 DOI: 10.3390/ijms23031109] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 01/10/2022] [Accepted: 01/18/2022] [Indexed: 12/17/2022] Open
Abstract
Pancreatic neuroendocrine tumors (PanNETs) are rare tumors; however, their incidence greatly increases with age, and they occur more frequently among the elderly. They represent 5% of all pancreatic tumors, and despite the fact that low-grade tumors often have an indolent evolution, they portend a poor prognosis in an advanced stages and undifferentiated tumors. Additionally, functional pancreatic neuroendocrine tumors greatly impact quality of life due to the various clinical syndromes that result from abnormal hormonal secretion. With limited therapeutic and diagnostic options, patient stratification and selection of optimal therapeutic strategies should be the main focus. Modest improvements in the management of pancreatic neuroendocrine tumors have been achieved in the last years. Therefore, it is imperative to find new biomarkers and therapeutic strategies to improve patient survival and quality of life, limiting the disease burden. MicroRNAs (miRNAs) are small endogenous molecules that modulate the expression of thousands of genes and control numerous critical processes involved in tumor development and progression. New data also suggest the implication of miRNAs in treatment resistance and their potential as prognostic or diagnostic biomarkers and therapeutic targets. In this review, we discusses the current and new challenges in the management of PanNETs, including genetic and epigenetic approaches. Furthermore, we summarize the available data on miRNAs as potential prognostic, predictive, or diagnostic biomarkers and discuss their function as future therapeutic targets.
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Affiliation(s)
- Andrei Havasi
- Department of Medical Oncology, The Oncology Institute “Prof. Dr. Ion Chiricuta”, 400015 Cluj-Napoca, Romania; (A.H.); (C.C.)
- 11th Department of Medical Oncology, University of Medicine and Pharmacy “Iuliu Hatieganu”, 400015 Cluj-Napoca, Romania;
- MedEuropa Radiotherapy Center, 410191 Oradea, Romania
| | - Daniel Sur
- Department of Medical Oncology, The Oncology Institute “Prof. Dr. Ion Chiricuta”, 400015 Cluj-Napoca, Romania; (A.H.); (C.C.)
- 11th Department of Medical Oncology, University of Medicine and Pharmacy “Iuliu Hatieganu”, 400015 Cluj-Napoca, Romania;
| | - Simona Sorana Cainap
- Department of Mother and Child, Pediatric Cardiology, University of Medicine and Pharmacy “Iuliu Hatieganu”, 400015 Cluj-Napoca, Romania;
| | | | - Laura-Ioana Gavrilas
- Department of Bromatology, Hygiene, Nutrition, University of Medicine and Pharmacy “Iuliu Hatieganu”, 23 Marinescu Street, 400337 Cluj-Napoca, Romania;
| | - Calin Cainap
- Department of Medical Oncology, The Oncology Institute “Prof. Dr. Ion Chiricuta”, 400015 Cluj-Napoca, Romania; (A.H.); (C.C.)
- 11th Department of Medical Oncology, University of Medicine and Pharmacy “Iuliu Hatieganu”, 400015 Cluj-Napoca, Romania;
| | - Catalin Vlad
- Department of Surgery, The Oncology Institute “Prof. Dr. Ion Chiricuta”, 34–36, Republicii Street, 400015 Cluj-Napoca, Romania;
- Department of Oncology, “Iuliu Hatieganu” University of Medicine and Pharmacy, 8, Victor Babes Street, 400012 Cluj-Napoca, Romania
| | - Ovidiu Balacescu
- 11th Department of Medical Oncology, University of Medicine and Pharmacy “Iuliu Hatieganu”, 400015 Cluj-Napoca, Romania;
- Department of Genetics, Genomics and Experimental Pathology, The Oncology Institute “Prof. Dr. Ion Chiricuta’’, 400015 Cluj-Napoca, Romania
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11
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Tan XG, Zhu J, Cui L. MicroRNA expression signature and target prediction in familial and sporadic primary macronodular adrenal hyperplasia (PMAH). BMC Endocr Disord 2022; 22:11. [PMID: 34986816 PMCID: PMC8729020 DOI: 10.1186/s12902-021-00910-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Accepted: 12/05/2021] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Primary macronodular adrenal hyperplasia (PMAH), previously termed ACTH-independent macronodular adrenal hyperplasia (AIMAH), is a rare cause of Cushing's syndrome usually characterized by functioning adrenal macronodules and increased cortisol production. METHODS To screen and analyse the microRNA (miRNA) profile of PMAH in order to elucidate its possible pathogenesis, a miRNA microarray was used to test tissue samples from patients with familial PMAH, patients with sporadic PMAH and normal control samples of other nontumour adrenocortical tissues and identify characteristic microRNA expression signatures. Randomly selected miRNAs were validated by quantitative real-time reverse transcription polymerase chain reaction (qRT-PCR). Furthermore, the key signalling pathways and miRNAs involved in PMAH pathogenesis were determined by gene ontology and pathway analysis. RESULTS Characteristic microRNA expression signatures were identified for patients with familial PMAH (16 differentially expressed microRNAs) and patients with sporadic PMAH (8 differentially expressed microRNAs). The expression of the selected miRNAs was confirmed by qRT-PCR, suggesting the high reliability of the miRNA array analysis results. Pathway analysis showed that the most enriched pathway was the renal cell carcinoma pathway. Overexpression of miR-17, miR-20a and miR-130b may inhibit glucocorticoid-induced apoptosis in PMAH pathogenesis. CONCLUSION We identified the miRNA signatures in patients with familial and sporadic PMAH. The differentially expressed miRNAs may be involved in the mechanisms of PMAH pathogenesis. Specific miRNAs, such as miR-17, miR-20a and miR-130b, may be new targets for further functional studies of PMAH.
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Affiliation(s)
- Xiao-Gang Tan
- Department of Thoracic Surgery, Xuan Wu Hospital of Capital Medical University, Beijing, 100053, China
| | - Jie Zhu
- Department of Urology Surgery, Chinese PLA General Hospital, Beijing, 100082, China
| | - Liang Cui
- Department of Urology Surgery, Civil Aviation General Hospital, Beijing, 100123, China.
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12
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Capodanno Y, Altieri B, Elders R, Colao A, Faggiano A, Schrader J. Canine insulinoma as a model for human malignant insulinoma research: Novel perspectives for translational clinical studies. Transl Oncol 2021; 15:101269. [PMID: 34794032 PMCID: PMC8605301 DOI: 10.1016/j.tranon.2021.101269] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 10/29/2021] [Accepted: 11/11/2021] [Indexed: 02/07/2023] Open
Abstract
Insulinomas are considered rare indolent neuroendocrine neoplasms in human medicine, however when metastases occur no curative treatment is available thus, novel therapies are needed. Recently advances have been made in unraveling the pathophysiology of malignant insulinoma still major challenges hinder the development of a functional model to study them. Canine malignant insulinoma have similar recurrence and a poor prognosis as human malignant insulinoma. Additionally, both human and canine patients share extensively the same environment, tend to develop insulinoma seemingly spontaneously with an etiological role for hormones, at a similar incidence and stage of lifespan, with metastasis commonly to liver and regional lymph nodes, which are unresponsive to current therapies. However, the occurrence of metastases in dogs is as high as 95% compared with only 5-16% in human studies. From a comparative oncology perspective, the shared features with human insulinoma but higher incidence of metastasis in canine insulinoma suggests the latter as a model for human malignant insulinomas. With the common purpose of increasing survival rates of human and veterinary patients, in this review we are going to compare and analyze clinical, pathological and molecular aspects of canine and human insulinomas to evaluate the suitability of the canine model for future translational clinical studies.
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Affiliation(s)
- Ylenia Capodanno
- Laboratory of Fundamental Oncology, National Cancer Center Research Institute, Chuo-ku, Tokyo 103-0045, Japan
| | - Barbara Altieri
- Division of Endocrinology and Diabetes, Department of Internal Medicine, University Hospital of Wuerzburg, Oberduerrbacher Strasse 6, Wuerzburg 97080, Germany
| | - Richard Elders
- London Vet Specialists, 56 Belsize Lane, London NW3 5AR, United Kingdom
| | - Annamaria Colao
- Department of Clinical Medicine and Surgery, Federico II University, Naples, Italy
| | - Antongiulio Faggiano
- Endocrinology Unit, Department of Clinical and Molecular Medicine, Sant'Andrea Hospital, Sapienza University of Rome, Via di Grottarossa, 1035/1039, Rome 00189, Italy
| | - Joerg Schrader
- I. Department of Medicine, University Medical Center Hamburg-Eppendorf, Martinstrasse 52, Hamburg 20246, Germany
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13
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Manaka T, Hirai H, Kusano Y. Lanreotide and diazoxide have comparable effects on glucose levels in an elderly Japanese insulinoma patient: a case report. J Rural Med 2021; 16:280-285. [PMID: 34707739 PMCID: PMC8527614 DOI: 10.2185/jrm.2020-065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 05/27/2021] [Indexed: 12/01/2022] Open
Abstract
An insulinoma is a pancreatic neuroendocrine tumor that causes hypoglycemia. In the
elderly, as surgery is not always possible, drugs are an important alternative. However,
the effects of lanreotide on insulinomas have not yet been elucidated. We report the case
of an 85-year-old Japanese woman who was admitted for loss of consciousness and
hypoglycemia, which was resolved after intravenous glucose infusion. Insulin secretion was
not inhibited during hypoglycemia. Enhanced computed tomography and OctreoScan
scintigraphy revealed a pancreatic tumor (diameter, 13 mm) with radiotracer accumulation.
Thus, clinical insulinoma was confirmed. However, the patient refused further examination
and surgery. Diazoxide (150 mg/day) therapy resolved hypoglycemia but caused fluid
retention. Consequently, we switched to lanreotide (120 mg/6 weeks). Continuous glucose
monitoring revealed that both drugs had comparable effects on interstitial glucose
normalization. Furthermore, 447 days after the initiation of lanreotide treatment, the
patient had no hypoglycemic symptoms. Therefore, lanreotide may be a useful alternative
treatment option for inoperable insulinomas in elderly individuals.
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Affiliation(s)
- Tomoo Manaka
- Department of Internal Medicine, Shirakawa Kosei General Hospital, Japan
| | - Hiroyuki Hirai
- Department of Internal Medicine, Shirakawa Kosei General Hospital, Japan
| | - Yoshiro Kusano
- Department of Internal Medicine, Shirakawa Kosei General Hospital, Japan
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14
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Spada F, Rossi RE, Kara E, Laffi A, Massironi S, Rubino M, Grimaldi F, Bhoori S, Fazio N. Carcinoid Syndrome and Hyperinsulinemic Hypoglycemia Associated with Neuroendocrine Neoplasms: A Critical Review on Clinical and Pharmacological Management. Pharmaceuticals (Basel) 2021; 14:ph14060539. [PMID: 34199977 PMCID: PMC8228616 DOI: 10.3390/ph14060539] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 05/31/2021] [Accepted: 06/01/2021] [Indexed: 02/05/2023] Open
Abstract
The carcinoid syndrome (CS) and hyperinsulinemic hypoglycemia (HH) represent two of the most common clinical syndromes associated with neuroendocrine neoplasms (NENs). The former is mainly related to the serotonin secretion by a small bowel NEN, whereas the latter depends on an insulin hypersecretion by a pancreatic insulinoma. Both syndromes/conditions can affect prognosis and quality of life of patients with NENs. They are often diagnosed late when patients become strongly symptomatic. Therefore, their early detection and management are a critical step in the clinical management of NEN patients. A dedicated and experienced multidisciplinary team with appropriate therapeutic strategies is needed and should be encouraged to optimize clinical outcomes. This review aims to critically analyze clinical features, evidence and treatment options of CS and HH and therefore to improve their management.
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Affiliation(s)
- Francesca Spada
- Division of Gastrointestinal Medical Oncology and Neuroendocrine Tumors, European Institute of Oncology (IEO) IRCCS, via G. Ripamonti 435, 20141 Milano, Italy; (F.S.); (A.L.); (M.R.)
| | - Roberta E. Rossi
- Hepatology and Hepato-Pancreatic-Biliary Surgery and Liver Transplantation, Fondazione IRCCS, Istituto Nazionale Tumori (INT), via G. Venezian 1, 20133 Milano, Italy; (R.E.R.); (S.B.)
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, via Festa del Perdono 7, 20122 Milano, Italy
| | - Elda Kara
- Endocrinology and Metabolism Unit, University Hospital S. Maria della Misericordia, Piazzale Santa Maria della Misericordia, 15, 33100 Udine, Italy; (E.K.); (F.G.)
| | - Alice Laffi
- Division of Gastrointestinal Medical Oncology and Neuroendocrine Tumors, European Institute of Oncology (IEO) IRCCS, via G. Ripamonti 435, 20141 Milano, Italy; (F.S.); (A.L.); (M.R.)
| | - Sara Massironi
- Division of Gastroenterology, San Gerardo Hospital, Bicocca School of Medicine, University of Milano Bicocca, 20126 Milano, Italy;
| | - Manila Rubino
- Division of Gastrointestinal Medical Oncology and Neuroendocrine Tumors, European Institute of Oncology (IEO) IRCCS, via G. Ripamonti 435, 20141 Milano, Italy; (F.S.); (A.L.); (M.R.)
| | - Franco Grimaldi
- Endocrinology and Metabolism Unit, University Hospital S. Maria della Misericordia, Piazzale Santa Maria della Misericordia, 15, 33100 Udine, Italy; (E.K.); (F.G.)
| | - Sherrie Bhoori
- Hepatology and Hepato-Pancreatic-Biliary Surgery and Liver Transplantation, Fondazione IRCCS, Istituto Nazionale Tumori (INT), via G. Venezian 1, 20133 Milano, Italy; (R.E.R.); (S.B.)
| | - Nicola Fazio
- Division of Gastrointestinal Medical Oncology and Neuroendocrine Tumors, European Institute of Oncology (IEO) IRCCS, via G. Ripamonti 435, 20141 Milano, Italy; (F.S.); (A.L.); (M.R.)
- Correspondence: ; Tel.: +39-025-748-9258
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15
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Yamaoka K, Nagashima S, Okada N, Sawayama N, Saito S, Takahashi M, Okada K, Endo K, Koizumi M, Sasanuma H, Ebihara K, Kasajima A, Fukushima N, Sata N, Ishibashi S. A case of insulinoma with hypoglycemia that was better managed with lanreotide than octreotide. Clin Case Rep 2021; 9:e04118. [PMID: 34026158 PMCID: PMC8133073 DOI: 10.1002/ccr3.4118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 02/19/2021] [Accepted: 03/16/2021] [Indexed: 11/16/2022] Open
Abstract
Long-acting somatostatin analogs, including lanreotide slow release (LAN-SR) and octreotide long-acting release (OCT-LAR), can improve hypoglycemia in insulinoma. LAN-SR may be more beneficial in some patients with insulinoma than OCT-LAR.
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Affiliation(s)
- Keiko Yamaoka
- Division of Endocrinology and MetabolismDepartment of MedicineJichi Medical UniversityShimotsukeJapan
| | - Shuichi Nagashima
- Division of Endocrinology and MetabolismDepartment of MedicineJichi Medical UniversityShimotsukeJapan
| | - Nobukazu Okada
- Division of Endocrinology and MetabolismDepartment of MedicineJichi Medical UniversityShimotsukeJapan
| | - Nagisa Sawayama
- Division of Endocrinology and MetabolismDepartment of MedicineJichi Medical UniversityShimotsukeJapan
| | - Shinsuke Saito
- Division of Endocrinology and MetabolismDepartment of MedicineJichi Medical UniversityShimotsukeJapan
| | - Manabu Takahashi
- Division of Endocrinology and MetabolismDepartment of MedicineJichi Medical UniversityShimotsukeJapan
| | - Kenta Okada
- Division of Endocrinology and MetabolismDepartment of MedicineJichi Medical UniversityShimotsukeJapan
| | - Kazuhiro Endo
- Department of SurgeryJichi Medical UniversityShimotsukeJapan
| | - Masaru Koizumi
- Department of SurgeryJichi Medical UniversityShimotsukeJapan
| | - Hideki Sasanuma
- Department of SurgeryJichi Medical UniversityShimotsukeJapan
| | - Ken Ebihara
- Division of Endocrinology and MetabolismDepartment of MedicineJichi Medical UniversityShimotsukeJapan
| | - Atsuko Kasajima
- Department of PathologyTohoku University Graduate School of MedicineSendaiJapan
- Present address:
Department of PathologyTechnical University MunichMunichGermany
| | | | - Naohiro Sata
- Department of SurgeryJichi Medical UniversityShimotsukeJapan
| | - Shun Ishibashi
- Division of Endocrinology and MetabolismDepartment of MedicineJichi Medical UniversityShimotsukeJapan
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16
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Effraimidis G, Knigge U, Rossing M, Oturai P, Rasmussen ÅK, Feldt-Rasmussen U. Multiple endocrine neoplasia type 1 (MEN-1) and neuroendocrine neoplasms (NENs). Semin Cancer Biol 2021; 79:141-162. [PMID: 33905872 DOI: 10.1016/j.semcancer.2021.04.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 01/03/2021] [Accepted: 04/16/2021] [Indexed: 12/14/2022]
Abstract
Neuroendocrine neoplasms (NENs) are relatively rare neoplasms with 6.4-times increasing age-adjusted annual incidence during the last four decades. NENs arise from neuroendocrine cells, which release hormones in response to neuronal stimuli and they are distributed into organs and tissues. The presentation and biological behaviour of the NENs are highly heterogeneous, depending on the organ. The increased incidence is mainly due to increased awareness and improved detection methods both in the majority of sporadic NENs (non-inherited), but also the inherited groups of neoplasms appearing in at least ten genetic syndromes. The most important one is multiple endocrine neoplasia type 1 (MEN-1), caused by mutations in the tumour suppressor gene MEN1. MEN-1 has been associated with different tumour manifestations of NENs e.g. pancreas, gastrointestinal tract, lungs, thymus and pituitary. Pancreatic NENs tend to be less aggressive when arising in the setting of MEN-1 compared to sporadic pancreatic NENs. There have been very important improvements over the past years in both genotyping, genetic counselling and family screening, introduction and validation of various relevant biomarkers, as well as newer imaging modalities. Alongside this development, both medical, surgical and radionuclide treatments have also advanced and improved morbidity, quality of life and mortality in many of these patients. Despite this progress, there is still space for improving insight into the genetic and epigenetic factors in relation to the biological mechanisms determining NENs as part of MEN-1. This review gives a comprehensive update of current evidence for co-occurrence, diagnosis and treatment of MEN-1 and neuroendocrine neoplasms and highlight the important progress now finding its way to international guidelines in order to improve the global management of these patients.
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Affiliation(s)
- Grigoris Effraimidis
- ENETS Neuroendocrine Tumor Centre of Excellence, Rigshospitalet, Copenhagen University Hospital, Denmark; Department of Medical Endocrinology and Metabolism, Rigshospitalet, Copenhagen University Hospital, Denmark
| | - Ulrich Knigge
- ENETS Neuroendocrine Tumor Centre of Excellence, Rigshospitalet, Copenhagen University Hospital, Denmark; Department of Medical Endocrinology and Metabolism, Rigshospitalet, Copenhagen University Hospital, Denmark; Department of Surgery and Transplantation, Rigshospitalet, Copenhagen University Hospital, Denmark
| | - Maria Rossing
- Centre for Genomic Medicine, Rigshospitalet, Copenhagen University Hospital, Denmark
| | - Peter Oturai
- Department of Clinical Physiology, Nuclear Medicine & PET, Rigshospitalet, Copenhagen University Hospital, Denmark
| | - Åse Krogh Rasmussen
- ENETS Neuroendocrine Tumor Centre of Excellence, Rigshospitalet, Copenhagen University Hospital, Denmark; Department of Medical Endocrinology and Metabolism, Rigshospitalet, Copenhagen University Hospital, Denmark
| | - Ulla Feldt-Rasmussen
- ENETS Neuroendocrine Tumor Centre of Excellence, Rigshospitalet, Copenhagen University Hospital, Denmark; Department of Medical Endocrinology and Metabolism, Rigshospitalet, Copenhagen University Hospital, Denmark; Institute of Clinical Medicine, Faculty of Health Sciences, Copenhagen University, Denmark.
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17
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Geslot A, Vialon M, Caron P, Grunenwald S, Vezzosi D. New therapies for patients with multiple endocrine neoplasia type 1. ANNALES D'ENDOCRINOLOGIE 2021; 82:112-120. [PMID: 33839123 DOI: 10.1016/j.ando.2021.03.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Revised: 03/18/2021] [Accepted: 03/26/2021] [Indexed: 02/06/2023]
Abstract
In 1953, for the first time, Paul Wermer described a family presenting endocrine gland neoplasms over several generations. The transmission was autosomal dominant and the penetrance was high. Forty years later in 1997, the multiple endocrine neoplasia type 1 (MEN1) gene was sequenced, thus enabling diagnosis and early optimal treatment. Patients carrying the MEN1 gene present endocrine but also non-endocrine tumors. Parathyroid, pancreatic and pituitary impairment are the three main types of endocrine involvement. The present article details therapeutic management of hyperparathyroidism, neuroendocrine pancreatic tumors and pituitary adenomas in patients carrying the MEN1 gene. Significant therapeutic progress has in fact been made in the last few years. As concerns the parathyroid glands, screening of family members and regular monitoring of affected subjects now raise the question of early management of parathyroid lesions and optimal timing of parathyroid surgery. As concerns the duodenum-pancreas, proton-pump inhibitors are able to control gastrin-secreting syndrome, reducing mortality in MEN1 patients. Mortality in MEN1 patients is no longer mainly secondary to uncontrolled hormonal secretion but to metastatic (mainly pancreatic) disease progression. Tumor risk requires regular monitoring of morphological assessment, leading to iterative pancreatic surgery in a large number of patients. Finally, pituitary adenomas in MEN1 patients are traditionally described as aggressive, invasive and resistant to medical treatment. However, regular pituitary screening showed them to be in fact infra-centimetric and non-secreting in the majority of patients. Consequently, it is necessary to regularly monitor MEN1 patients, with regular clinical, biological and morphological work-up. Several studies showed that this regular monitoring impairs quality of life. Building a relationship of trust between patients and care provider is therefore essential. It enables the patient to be referred for psychological or psychiatric care in difficult times, providing long-term support and preventing any breakdown in continuity of care.
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Affiliation(s)
- Aurore Geslot
- Service d'endocrinologie, hôpital Larrey, 24, chemin de Pouvourville, 31029 Toulouse cedex 9, France
| | - Magaly Vialon
- Service d'endocrinologie, hôpital Larrey, 24, chemin de Pouvourville, 31029 Toulouse cedex 9, France
| | - Philippe Caron
- Service d'endocrinologie, hôpital Larrey, 24, chemin de Pouvourville, 31029 Toulouse cedex 9, France
| | - Solange Grunenwald
- Service d'endocrinologie, hôpital Larrey, 24, chemin de Pouvourville, 31029 Toulouse cedex 9, France
| | - Delphine Vezzosi
- Institut CardioMet, Toulouse, France; Service d'endocrinologie, hôpital Larrey, 24, chemin de Pouvourville, 31029 Toulouse cedex 9, France.
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18
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The Chinese guidelines for the diagnosis and treatment of pancreatic neuroendocrine neoplasms (2020). JOURNAL OF PANCREATOLOGY 2021. [DOI: 10.1097/jp9.0000000000000064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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19
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Atypical CT and MR imaging of insulinoma: A case report. JOURNAL OF CLINICAL AND TRANSLATIONAL ENDOCRINOLOGY CASE REPORTS 2021. [DOI: 10.1016/j.jecr.2020.100075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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20
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Hu Y, Ye Z, Wang F, Qin Y, Xu X, Yu X, Ji S. Role of Somatostatin Receptor in Pancreatic Neuroendocrine Tumor Development, Diagnosis, and Therapy. Front Endocrinol (Lausanne) 2021; 12:679000. [PMID: 34093445 PMCID: PMC8170475 DOI: 10.3389/fendo.2021.679000] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 04/27/2021] [Indexed: 12/02/2022] Open
Abstract
Pancreatic neuroendocrine tumors (pNETs) are rare and part of the diverse family of neuroendocrine neoplasms (NENs). Somatostatin receptors (SSTRs), which are widely expressed in NENs, are G-protein coupled receptors that can be activated by somatostatins or its synthetic analogs. Therefore, SSTRs have been widely researched as a diagnostic marker and therapeutic target in pNETs. A large number of studies have demonstrated the clinical significance of SSTRs in pNETs. In this review, relevant literature has been appraised to summarize the most recent empirical evidence addressing the clinical significance of SSTRs in pNETs. Overall, these studies have shown that SSTRs have great value in the diagnosis, treatment, and prognostic prediction of pNETs; however, further research is still necessary.
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Affiliation(s)
- Yuheng Hu
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Shanghai Pancreatic Cancer Institute, Shanghai, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, China
| | - Zeng Ye
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Shanghai Pancreatic Cancer Institute, Shanghai, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, China
| | - Fei Wang
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Shanghai Pancreatic Cancer Institute, Shanghai, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, China
| | - Yi Qin
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Shanghai Pancreatic Cancer Institute, Shanghai, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, China
| | - Xiaowu Xu
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Shanghai Pancreatic Cancer Institute, Shanghai, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, China
| | - Xianjun Yu
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Shanghai Pancreatic Cancer Institute, Shanghai, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, China
- *Correspondence: Xianjun Yu, ; Shunrong Ji,
| | - Shunrong Ji
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Shanghai Pancreatic Cancer Institute, Shanghai, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, China
- *Correspondence: Xianjun Yu, ; Shunrong Ji,
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21
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Ito T, Jensen RT. Perspectives on the current pharmacotherapeutic strategies for management of functional neuroendocrine tumor syndromes. Expert Opin Pharmacother 2020; 22:685-693. [PMID: 33131345 DOI: 10.1080/14656566.2020.1845651] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Introduction: In the past, controlling the hormone-excess-state was the main determinant of survival in Functional-Neuroendocrine-Neoplasm-syndromes (F-NENs). This was difficult because the pharmacological-armamentarium available was limited. Recently, new therapeutic strategies have increased but it also generated controversies/uncertainties.Areas covered: The authors briefly review: established/proposed F-NENs; the rationale for treatments; the recommended initial-pharmacotherapeutic-approach to controlling F-NENs hormone-excess-state; the secondary-approaches if the initial approach fails or resistance develops; and the approach to deal with the malignant nature of the NEN. Also discussed are controversies/uncertainties related to new treatments.Expert opinion: Unfortunately, except for patients with insulinomas (>90-95%), gastrinomas (<20-40%), a minority with the other F-panNENs and 0-<1% with Carcinoid-syndrome is curative-surgery possible. Except for insulinomas, gastrinomas, and ACTHomas, long-acting somatostatin-analogs are the initial-pharmacological-treatments for hormone-excess-state. For insulinomas prior to surgery/malignancy, diazoxide is the initial drug-treatment; for gastrinomas, oral PPIs; and for ACTHomas, steroidogenesis inhibitors. There are now several secondary pharmacotherapeutic treatments. Surgery and liver-directed therapies also have a role in selected patients. Particularly promising is the recent results with PRRT for the hormone-excess-state, independent of its anti-growth effect. The sequence to use various agents and the approach to syndrome diagnosis while taking various agents remains unclear/controversial in many cases.
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Affiliation(s)
- Tetsuhide Ito
- Neuroendocrine Tumor Centre, Fukuoka Sanno Hospital, International University of Health and Welfare, Fukuoka, Japan
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Sileo F, Cangiano B, Cacciatore C, Amarù J, Gatto F, Albertelli M, Falconi M, Vitale G, Persani L. Off-label pasireotide treatment in one insulinoma patient with an atypical presentation and intolerant to diazoxide. Endocrine 2020; 70:435-438. [PMID: 32621049 DOI: 10.1007/s12020-020-02406-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 06/24/2020] [Indexed: 12/20/2022]
Affiliation(s)
- Federica Sileo
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
- Lab of Endocrine and Metabolic Research, Department of Endocrine and Metabolic Diseases, IRCCS Istituto Auxologico Italiano, Milan, Italy
| | - Biagio Cangiano
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
- Lab of Endocrine and Metabolic Research, Department of Endocrine and Metabolic Diseases, IRCCS Istituto Auxologico Italiano, Milan, Italy
| | - Chiara Cacciatore
- Lab of Endocrine and Metabolic Research, Department of Endocrine and Metabolic Diseases, IRCCS Istituto Auxologico Italiano, Milan, Italy
| | - Jessica Amarù
- Endocrinology Unit, Department of Internal Medicine and Medical Specialties, University of Genoa, Genoa, Italy
| | - Federico Gatto
- Endocrinology Unit, Department of Specialist Medicine, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Manuela Albertelli
- Endocrinology Unit, Department of Internal Medicine and Medical Specialties, University of Genoa, Genoa, Italy
| | - Massimo Falconi
- Division of Pancreatic Surgery, Pancreas Translational & Clinical Research Center, Università Vita Salute, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Giovanni Vitale
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
- Istituto Auxologico Italiano, IRCCS, Laboratorio Sperimentale di Ricerche di Neuroendocrinologia Geriatrica ed Oncologica, Cusano Milanino, Milan, Italy
| | - Luca Persani
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy.
- Lab of Endocrine and Metabolic Research, Department of Endocrine and Metabolic Diseases, IRCCS Istituto Auxologico Italiano, Milan, Italy.
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Li D, Rock A, Kessler J, Ballena R, Hyder S, Mo C, Chang S, Singh G. Understanding the Management and Treatment of Well-Differentiated Pancreatic Neuroendocrine Tumors: A Clinician's Guide to a Complex Illness. JCO Oncol Pract 2020; 16:720-728. [PMID: 33085933 DOI: 10.1200/jcoop.20.00010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Pancreatic neuroendocrine tumors (PanNETs) are rare neoplasms that arise in the neuroendocrine cells of the pancreas. Although their clinical presentations differ depending on cell type, most are indolent, whereas others cause noteworthy hormone-related symptoms. The increasing incidence of PanNETs, attributed to improved diagnostic modalities, demonstrates advances in current standard of care. However, given the heterogeneity of these tumors, treatment decisions can become complex and an individualized approach is often required. Surgical intervention has remained the mainstay for localized tumors, whereas systemic therapies remain viable options for patients with unresectable or metastatic disease. Liver-directed therapies such as radiofrequency ablation and hepatic arterial embolization have also become available adjunct therapies for patients with liver-predominant metastases. Despite the increase in the armamentarium of treatment options for patients with PanNETs, data regarding the ideal sequence of treatment, especially systemic treatments, are currently lacking. Ongoing clinical trials are aimed at addressing this knowledge gap in addition to developing the next generation of novel therapeutics.
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Affiliation(s)
- Daneng Li
- Department of Medical Oncology, City of Hope National Medical Center, Duarte, CA
| | - Adam Rock
- Department of Hematology and Medical Oncology, Harbor-UCLA Medical Center, Torrance, CA
| | - Jonathan Kessler
- Department of Diagnostic Radiology, Division of Interventional Radiology, City of Hope National Medical Center, Duarte, CA
| | - Richard Ballena
- Department of Medical Oncology, City of Hope National Medical Center, Duarte, CA
| | - Shadman Hyder
- Department of Medical Oncology, City of Hope National Medical Center, Duarte, CA
| | - Christiana Mo
- Department of Medicine, University of California, Irvine, Irvine, CA
| | - Sue Chang
- Department of Pathology, City of Hope National Medical Center, Duarte, CA
| | - Gagandeep Singh
- Department of Surgery, City of Hope National Medical Center, Duarte, CA
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24
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Somatostatinoma and Neurofibromatosis Type 1-A Case Report and Review of the Literature. Diagnostics (Basel) 2020; 10:diagnostics10090620. [PMID: 32825782 PMCID: PMC7555390 DOI: 10.3390/diagnostics10090620] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 08/11/2020] [Accepted: 08/17/2020] [Indexed: 02/06/2023] Open
Abstract
Somatostatinomas are rare neuroendocrine tumors (NET) that arise in the gastrointestinal (GI) tract. Because of their insidious growth, they are usually asymptomatic until late stages, presenting as malignant disease. We report the case of a 50-year-old woman who presented with epigastric abdominal pain, diarrhea and significant weight loss in the last two years. On clinical examination the patient met the criteria for neurofibromatosis type 1 (NF1). Abdominal CT and MRI revealed an infiltrative duodenal mass, with pancreatic invasion, locoregional enlarged lymph nodes and disseminated hepatic nodules. Microscopy and immunohistochemistry uncovered a neuroendocrine tumor, staining positive for chromogranin A (CgA), synaptophysin and somatostatin, with a Ki67 = 1%. Somatostatin receptors (SSTRs) type 2 were negative and SSTRs type 5 were positive in less than 50% of tumoral cells. Our patient was classified as a T3N1M1 stage IV metastatic duodenal grade 1 somatostatinoma and treatment with somatostatin analogues and chemotherapy with capecitabine and temozolomide was started, with so far abdominal imaging follow-up showing stable disease. When a patient is diagnosed with a rare NET, such as a somatostatinoma, it is of utmost importance to determine if it is a sporadic tumor or just a feature of a genetic disorder.
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Halfdanarson TR, Strosberg JR, Tang L, Bellizzi AM, Bergsland EK, O'Dorisio TM, Halperin DM, Fishbein L, Eads J, Hope TA, Singh S, Salem R, Metz DC, Naraev BG, Reidy-Lagunes DL, Howe JR, Pommier RF, Menda Y, Chan JA. The North American Neuroendocrine Tumor Society Consensus Guidelines for Surveillance and Medical Management of Pancreatic Neuroendocrine Tumors. Pancreas 2020; 49:863-881. [PMID: 32675783 DOI: 10.1097/mpa.0000000000001597] [Citation(s) in RCA: 79] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This article is the result of the North American Neuroendocrine Tumor Society consensus conference on the medical management of pancreatic neuroendocrine tumors from July 19 to 20, 2018. The guidelines panel consisted of medical oncologists, pathologists, gastroenterologists, endocrinologists, and radiologists. The panel reviewed a series of questions regarding the medical management of patients with pancreatic neuroendocrine tumors as well as questions regarding surveillance after resection. The available literature was reviewed for each of the question and panel members voted on controversial topics, and the recommendations were included in a document circulated to all panel members for a final approval.
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Affiliation(s)
| | | | - Laura Tang
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Andrew M Bellizzi
- Department of Pathology, University of Iowa Carver College of Medicine, Iowa City, IA
| | - Emily K Bergsland
- Department of Medicine, University of California, San Francisco, San Francisco, CA
| | - Thomas M O'Dorisio
- Department of Medicine, Division of Endocrinology, University of Iowa Carver College of Medicine, Iowa City, IA
| | - Daniel M Halperin
- Department of Gastrointestinal Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, TX
| | - Lauren Fishbein
- Department of Medicine, Division of Endocrinology, Metabolism and Diabetes, Division of Biomedical Informatics and Personalized Medicine, University of Colorado School of Medicine, Aurora, CO
| | - Jennifer Eads
- Division of Hematology and Oncology, Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA
| | - Thomas A Hope
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, CA
| | - Simron Singh
- Department of Medical Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Riad Salem
- Department of Radiology, Section of Interventional Radiology, Northwestern University, Chicago IL
| | - David C Metz
- Division of Gastroenterology, Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
| | | | | | - James R Howe
- Department of Surgery, University of Iowa Carver College of Medicine, Iowa City, IA
| | - Rodney F Pommier
- Department of Surgery, Oregon Health and Science University, Portland, OR
| | - Yusuf Menda
- Department of Radiology, University of Iowa Carver College of Medicine, Iowa City, IA
| | - Jennifer A Chan
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA
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Hofland J, Kaltsas G, de Herder WW. Advances in the Diagnosis and Management of Well-Differentiated Neuroendocrine Neoplasms. Endocr Rev 2020; 41:bnz004. [PMID: 31555796 PMCID: PMC7080342 DOI: 10.1210/endrev/bnz004] [Citation(s) in RCA: 104] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Accepted: 02/28/2020] [Indexed: 02/07/2023]
Abstract
Neuroendocrine neoplasms constitute a diverse group of tumors that derive from the sensory and secretory neuroendocrine cells and predominantly arise within the pulmonary and gastrointestinal tracts. The majority of these neoplasms have a well-differentiated grade and are termed neuroendocrine tumors (NETs). This subgroup is characterized by limited proliferation and patients affected by these tumors carry a good to moderate prognosis. A substantial subset of patients presenting with a NET suffer from the consequences of endocrine syndromes as a result of the excessive secretion of amines or peptide hormones, which can impair their quality of life and prognosis. Over the past 15 years, critical developments in tumor grading, diagnostic biomarkers, radionuclide imaging, randomized controlled drug trials, evidence-based guidelines, and superior prognostic outcomes have substantially altered the field of NET care. Here, we review the relevant advances to clinical practice that have significantly upgraded our approach to NET patients, both in diagnostic and in therapeutic options.
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Affiliation(s)
- Johannes Hofland
- ENETS Center of Excellence, Section of Endocrinology, Department of Internal Medicine, Erasmus MC Cancer Center, Erasmus MC, Rotterdam, The Netherlands
| | - Gregory Kaltsas
- 1st Department of Propaupedic Internal Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Wouter W de Herder
- ENETS Center of Excellence, Section of Endocrinology, Department of Internal Medicine, Erasmus MC Cancer Center, Erasmus MC, Rotterdam, The Netherlands
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Gomes-Porras M, Cárdenas-Salas J, Álvarez-Escolá C. Somatostatin Analogs in Clinical Practice: a Review. Int J Mol Sci 2020; 21:ijms21051682. [PMID: 32121432 PMCID: PMC7084228 DOI: 10.3390/ijms21051682] [Citation(s) in RCA: 116] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 02/22/2020] [Accepted: 02/25/2020] [Indexed: 12/14/2022] Open
Abstract
Somatostatin analogs are an invaluable therapeutic option in the diagnosis and treatment of somatotropinomas, thyrotropinomas, and functioning and non-functioning gastroenteropancreatic neuroendocrine tumors. They should also be considered an effective and safe therapeutic alternative to corticotropinomas, gonadotropinomas, and prolactinomas resistant to dopamine agonists. Somatostatin analogs have also shown to be useful in the treatment of other endocrine diseases (congenital hyperinsulinism, Graves’ orbitopathy, diabetic retinopathy, diabetic macular edema), non-endocrine tumors (breast, colon, prostate, lung, and hepatocellular), and digestive diseases (chronic refractory diarrhea, hepatorenal polycystosis, gastrointestinal hemorrhage, dumping syndrome, and intestinal fistula).
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Affiliation(s)
- Mariana Gomes-Porras
- Department of Endocrinology, “La Paz” University Hospital. Paseo de la Castellana, 261, 28046 Madrid, Spain;
| | - Jersy Cárdenas-Salas
- Department of Endocrinology, “Fundación Jiménez-Diaz” University Hospital. Av. de los Reyes Católicos, 2, 28040 Madrid, Spain;
| | - Cristina Álvarez-Escolá
- Department of Endocrinology, “La Paz” University Hospital. Paseo de la Castellana, 261, 28046 Madrid, Spain;
- Correspondence: ; Tel.: +34-917-277-209
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Coriat R. Les nouvelles techniques diagnostiques des tumeurs neuroendocrines pancréatiques. ONCOLOGIE 2020. [DOI: 10.3166/onco-2019-0046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Les tumeurs neuroendocrines pancréatiques (TNEp) sont des tumeurs développées aux dépens du pancréas et nécessitent un bilan diagnostique spécifique. Le bilan d’imagerie d’une TNEp est utile pour le diagnostic ainsi que pour le traitement chirurgical/médical. Récemment, un certain nombre de progrès ont été réalisés dans le domaine de l’imagerie des TNEp, en particulier en ce qui concerne l’imagerie fonctionnelle utilisant des analogues de la somatostatine radiomarqués. Dans cette mise au point, nous abordons les progrès diagnostiques en nous focalisant sur les avancées des dernières années. Ainsi, il est abordé l’intérêt de l’imagerie conventionnelle (scanner, échographie abdominale, imagerie par résonance magnétique), de l’échoendoscopie et la place de l’imagerie fonctionnelle, principalement avec des analogues de la somatostatine radiomarqués.
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Cuccurullo V, Di Stasio GD, Mansi L. Physiopathological Premises to Nuclear Medicine Imaging of Pancreatic Neuroendocrine Tumours. Curr Radiopharm 2019; 12:98-106. [DOI: 10.2174/1874471012666190206094555] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 02/19/2018] [Accepted: 10/29/2018] [Indexed: 02/07/2023]
Abstract
Background:
Pancreatic Neuroendocrine Tumors (P-NETs) are a challenge in terms of both
diagnosis and therapy; morphological studies need to be frequently implemented with nonstandard
techniques such as Endoscopic Ultrasounds, Dynamic CT, and functional Magnetic Resonance.
Discussion:
The role of nuclear medicine, being scarcely sensitive F-18 Fluorodeoxyglucose, is mainly
based on the over-expression of Somatostatin Receptors (SSTR) on neuroendocrine tumor cells surface.
Therefore, SSTR can be used as a target for both diagnosis, using radiotracers labeled with gamma or
positron emitters, and therapy. SSTRs subtypes are capable of homo and heterodimerization in specific
combinations that alter both the response to ligand activation and receptor internalization.
Conclusion:
Although agonists usually provide efficient internalization, also somatostatin antagonists
(SS-ANTs) could be used for imaging and therapy. Peptide Receptor Radionuclide Therapy (PRRT)
represents the most successful option for targeted therapy. The theranostic model based on SSTR does
not work in insulinoma, in which different radiotracers such as F-18 FluoroDOPA or tracers for the
glucagon-like peptide-1 receptor have to be preferred.
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Affiliation(s)
- Vincenzo Cuccurullo
- Nuclear Medicine Unit, Department of Clinical and Experimental Medicine "F.Magrassi, A.Lanzara" – Universita della Campania "Luigi Vanvitelli", Napoli, Italy
| | - Giuseppe Danilo Di Stasio
- Nuclear Medicine Unit, Department of Clinical and Experimental Medicine "F.Magrassi, A.Lanzara" – Universita della Campania "Luigi Vanvitelli", Napoli, Italy
| | - Luigi Mansi
- Nuclear Medicine Unit, Department of Clinical and Experimental Medicine "F.Magrassi, A.Lanzara" – Universita della Campania "Luigi Vanvitelli", Napoli, Italy
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Vezzosi D, Guillaume E, Bennet A, Mouly C, Hanaire H, Caron P. Medical therapy in patients with endogenous hypoglycaemia: Is euglycaemia achievable? Clin Endocrinol (Oxf) 2019; 90:798-804. [PMID: 30817011 DOI: 10.1111/cen.13961] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 02/04/2019] [Accepted: 02/26/2019] [Indexed: 11/26/2022]
Abstract
CONTEXT While the only curative treatment for patients with endogenous hypoglycaemia related to inappropriate insulin or to insulin growth factor 2 (IGF2) secretion is surgery, medical treatment to normalize plasma glucose levels can be useful. OBJECTIVE The aim of this prospective single centre study was to assess whether patients with endogenous hypoglycaemia, considered euglycaemic with medical treatments, experienced asymptomatic hypo- or hyperglycaemic excursions. PATIENTS AND METHODS All patients with endogenous hypoglycaemia related to inappropriate insulin or to IGF2 secretion between 2012 and 2016 and considered normoglycaemic with medical treatment (absence of clinical hypoglycaemia and self-monitoring blood glucose in the normal range) were enroled and underwent a six-day continuous glucose monitoring (CGM) recording. RESULTS Twenty-seven patients (inappropriate insulin secretion n = 25 and IGF2 secretion n = 2), treated with diazoxide (n = 16), somatostatin analogues (n = 7), glucocorticoids (n = 3) or a combination of these treatments (n = 1) were enroled. Twenty-five CGMs were analysed. CGM confirmed normoglycaemia in 11/25 patients (44%). Hypoglycaemias below 0.60 g/L were present in seven patients (28%) and were associated with hyperglycaemic excursions above 1.40 g/L in five patients. Seven patients (28%) had only hyperglycaemic excursions. Based on these results, treatment was modified in 14 patients (56%). CONCLUSION Despite the disappearance of hypoglycaemia-related clinical symptoms and normalization of blood glucose self-monitoring data, 56% of the patients with endogenous hypoglycaemia treated with medical therapy experienced asymptomatic hypo- and/or hyperglycaemia. Continuous glucose monitoring could be a useful approach to reveal and prevent hypo- or hyperglycaemic excursions.
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Affiliation(s)
- Delphine Vezzosi
- Service d'Endocrinologie, Maladies Métaboliques et Nutrition et Institut CardioMet, Centre Hospitalier Universitaire Rangueil-Larrey, Toulouse, France
| | - Eric Guillaume
- Service de Diabétologie, Centre Hospitalier Universitaire Rangueil, Toulouse, France
| | - Antoine Bennet
- Service d'Endocrinologie, Maladies Métaboliques et Nutrition et Institut CardioMet, Centre Hospitalier Universitaire Rangueil-Larrey, Toulouse, France
| | - Céline Mouly
- Service d'Endocrinologie, Maladies Métaboliques et Nutrition et Institut CardioMet, Centre Hospitalier Universitaire Rangueil-Larrey, Toulouse, France
| | - Hélène Hanaire
- Service de Diabétologie, Centre Hospitalier Universitaire Rangueil, Toulouse, France
| | - Philippe Caron
- Service d'Endocrinologie, Maladies Métaboliques et Nutrition et Institut CardioMet, Centre Hospitalier Universitaire Rangueil-Larrey, Toulouse, France
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Akahori H. Clinical remission of an inoperable malignant insulinoma by the combination treatment with octreotide and everolimus. J Gen Fam Med 2019; 20:107-110. [PMID: 31065475 PMCID: PMC6498131 DOI: 10.1002/jgf2.235] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 11/20/2018] [Accepted: 12/16/2018] [Indexed: 12/31/2022] Open
Abstract
We report a 52-year-old woman with inoperable malignant insulinoma with multiple liver metastases. Histological examination of biopsy specimens from the pancreatic and hepatic lesions revealed pancreatic neuroendocrine tumor (pNET), G2. The tumor cells were positive for somatostatin receptor (SSTR) 2, 5, and the mammalian target of rapamycin (mTOR). Monthly intramuscular administration of octreotide LAR and once-daily oral administration of everolimus combination treatment markedly reduced the sizes of liver metastases, and hypoglycemia was well controlled. Combination treatment with somatostatin analog and mTOR inhibitor may be another effective approach in inoperable metastatic malignant insulinoma.
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Affiliation(s)
- Hiroshi Akahori
- Department of Internal Medicine (Endocrinology and Metabolism)Toyama Prefectural Central HospitalToyama‐cityToyamaJapan
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Caliri M, Verdiani V, Mannucci E, Briganti V, Landoni L, Esposito A, Burato G, Rotella CM, Mannelli M, Peri A. A case of malignant insulinoma responsive to somatostatin analogs treatment. BMC Endocr Disord 2018; 18:98. [PMID: 30591061 PMCID: PMC6307122 DOI: 10.1186/s12902-018-0325-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Accepted: 12/13/2018] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Insulinoma is a rare tumour representing 1-2% of all pancreatic neoplasms and it is malignant in only 10% of cases. Locoregional invasion or metastases define malignancy, whereas the dimension (> 2 cm), CK19 status, the tumor staging and grading (Ki67 > 2%), and the age of onset (> 50 years) can be considered elements of suspect. CASE PRESENTATION We describe the case of a 68-year-old man presenting symptoms compatible with hypoglycemia. The symptoms regressed with food intake. These episodes initially occurred during physical activity, later also during fasting. The fasting test was performed and the laboratory results showed endogenous hyperinsulinemia compatible with insulinoma. The patient appeared responsive to somatostatin analogs and so he was treated with short acting octreotide, obtaining a good control of glycemia. Imaging investigations showed the presence of a lesion of the uncinate pancreatic process of about 4 cm with a high sst2 receptor density. The patient underwent exploratory laparotomy and duodenocephalopancreasectomy after one month. The definitive histological examination revealed an insulinoma (T3N1MO, AGCC VII G1) with a low replicative index (Ki67: 2%). CONCLUSIONS This report describes a case of malignant insulinoma responsive to octreotide analogs administered pre-operatively in order to try to prevent hypoglycemia. The response to octreotide analogs is not predictable and should be initially assessed under strict clinical surveillance.
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Affiliation(s)
- Mariasmeralda Caliri
- Endocrine Unit, Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Florence, Careggi University Hospital, Florence, Italy
| | - Valentina Verdiani
- Endocrine Unit, Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Florence, Careggi University Hospital, Florence, Italy
| | - Edoardo Mannucci
- Diabetology Unit, Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Florence, Careggi University Hospital, Florence, Italy
| | - Vittorio Briganti
- Division of Nuclear Medicine, Careggi University Hospital, Florence, Italy
| | - Luca Landoni
- General and Pancreatic Surgery Department, The Pancreas Institute-University of Verona Hospital Trust, Verona, Italy
| | - Alessandro Esposito
- General and Pancreatic Surgery Department, The Pancreas Institute-University of Verona Hospital Trust, Verona, Italy
| | - Giulia Burato
- Department of Pathology and Diagnostics, University of Verona Hospital Trust, Verona, Italy
| | - Carlo Maria Rotella
- Diabetology Unit, Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Florence, Careggi University Hospital, Florence, Italy
| | - Massimo Mannelli
- Endocrine Unit, Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Florence, Careggi University Hospital, Florence, Italy
| | - Alessandro Peri
- Endocrine Unit, Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Florence, Careggi University Hospital, Florence, Italy
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Lee L, Ito T, Jensen RT. Imaging of pancreatic neuroendocrine tumors: recent advances, current status, and controversies. Expert Rev Anticancer Ther 2018; 18:837-860. [PMID: 29973077 PMCID: PMC6283410 DOI: 10.1080/14737140.2018.1496822] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
INTRODUCTION Recently, there have been a number of advances in imaging pancreatic neuroendocrine tumors (panNETs), as well as other neuroendocrine tumors (NETs), which have had a profound effect on the management and treatment of these patients, but in some cases are also associated with controversies. Areas covered: These advances are the result of numerous studies attempting to better define the roles of both cross-sectional imaging, endoscopic ultrasound, with or without fine-needle aspiration, and molecular imaging in both sporadic and inherited panNET syndromes; the increased attempt to develop imaging parameters that correlate with tumor classification or have prognostic value; the rapidly increasing use of molecular imaging in these tumors and the attempt to develop imaging parameters that correlate with treatment/outcome results. Each of these areas and the associated controversies are reviewed. Expert commentary: There have been numerous advances in all aspects of the imaging of panNETs, as well as other NETs, in the last few years. The advances are leading to expanded roles of imaging in the management of these patients and the results being seen in panNETs/GI-NETs with these newer techniques are already being used in more common tumors.
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Affiliation(s)
- Lingaku Lee
- a Department of Medicine and Bioregulatory Science , Graduate School of Medical Sciences, Kyushu University , Fukuoka , Japan
- b Digestive Diseases Branch , NIDDK, NIH , Bethesda , MD , USA
| | - Tetsuhide Ito
- c Neuroendocrine Tumor Centra, Fukuoka Sanno Hospital International University of Health and Welfare 3-6-45 Momochihama , Sawara-Ku, Fukuoka , Japan
| | - Robert T Jensen
- b Digestive Diseases Branch , NIDDK, NIH , Bethesda , MD , USA
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Amair-Pinedo F, Matos I, Saurí T, Hernando J, Capdevila J. The Treatment Landscape and New Opportunities of Molecular Targeted Therapies in Gastroenteropancreatic Neuroendocrine Tumors. Target Oncol 2018; 12:757-774. [PMID: 29143176 DOI: 10.1007/s11523-017-0532-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Neuroendocrine neoplasms (NENs) are a heterogeneous group of neoplasms that originate from neuroendocrine stem cells and express both neural and endocrine markers. They are found in almost every organ, and while NENs are mostly associated with slow growth, complications due to the uncontrolled secretion of active peptides, and metastatic disease, may significantly impair the quality of life and can ultimately lead to the death of affected individuals. Expanding knowledge of the genetic, epigenetic, and proteomic landscapes of NENs has led to a better understanding of their molecular pathology and consequently increased treatment options for patients. Here, we review the principal breakthroughs in NEN treatment management, owing largely to omics technologies over the last few years, current recommendations of systemic treatment, and ongoing research into the identification of predictive and response biomarkers based on molecular targeted therapies.
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Affiliation(s)
| | - Ignacio Matos
- Vall d'Hebron University Hospital, Barcelona, Spain.,Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | - Tamara Saurí
- Vall d'Hebron University Hospital, Barcelona, Spain.,Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | - Jorge Hernando
- Vall d'Hebron University Hospital, Barcelona, Spain.,Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | - Jaume Capdevila
- Vall d'Hebron University Hospital, Barcelona, Spain. .,Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain.
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Czapiewski P, Kunc M, Gorczyński A, Haybaeck J, Okoń K, Reszec J, Lewczuk A, Dzierzanowski J, Karczewska J, Biernat W, Turri-Zanoni M, Castelnuovo P, Taverna C, Franchi A, La Rosa S, Sessa F, Klöppel G. Frequent expression of somatostatin receptor 2a in olfactory neuroblastomas: a new and distinctive feature. Hum Pathol 2018; 79:144-150. [PMID: 29807052 DOI: 10.1016/j.humpath.2018.05.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Revised: 05/02/2018] [Accepted: 05/11/2018] [Indexed: 12/15/2022]
Abstract
Olfactory neuroblastoma (ONB) is a malignant neuroendocrine neoplasm with a usually slow course, but with considerable recurrence rate. Many neuroendocrine tumors have shown good response to the treatment with somatostatin analogs and somatostatin radioreceptor therapy. In ONBs, there are scarce data on somatostatin-based treatment and the cellular expression of somatostatin receptors (SSTR), the prerequisite for binding and effect of somatostatin on normal and tumor cells. The aim of our study was to investigate the immunohistochemical expression of SSTR2A and SSTR5 in a cohort of 40 ONBs. In addition, tissue microarrays containing 40 high-grade sinonasal carcinomas as well as 6 sinonasal lymphomas, 3 rhabdomyosarcomas, and 3 Ewing sarcomas were evaluated. Volante system was applied for staining evaluation. Thirty cases (75%) were immunopositive for SSTR2A and 3 (7.5%) for SSTR5. Among the 30 SSTR2A-positive ONBs, 19 tumors (63.3%) scored 2+ and 11 (36.7%) scored 3+. All SSTR5-positive ONBs scored 2+. Neither sinonasal carcinomas nor sinonasal small round blue cell neoplasms expressed SSTR2A or SSTR5. The frequent expression of SSTR2A provides a rationale for radioreceptor diagnosis and therapy with SST analogs in ONBs. SSTR2A expression in ONBs is a helpful adjunct in the differential diagnosis of ONBs.
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Affiliation(s)
- Piotr Czapiewski
- Department of Pathomorphology, Medical University of Gdańsk, Gdańsk, Poland; Department of Pathology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany.
| | - Michał Kunc
- Department of Pathomorphology, Medical University of Gdańsk, Gdańsk, Poland
| | - Adam Gorczyński
- Department of Pathomorphology, Medical University of Gdańsk, Gdańsk, Poland
| | - Johannes Haybaeck
- Department of Pathology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany; Department of Neuropathology, Institute of Pathology, Medical University Graz, Graz, Austria
| | - Krzysztof Okoń
- Department of Pathomorphology, Jagiellonian University Collegium Medicum, Kraków, Poland
| | - Joanna Reszec
- Department of Medical Pathomorphology, Medical University of Białystok,Białystok, Poland
| | - Anna Lewczuk
- Department of Endocrinology and Internal Medicine, Medical University of Gdańsk, Gdańsk, Poland
| | | | - Joanna Karczewska
- Department of Pathomorphology, Medical University of Gdańsk, Gdańsk, Poland
| | - Wojciech Biernat
- Department of Pathomorphology, Medical University of Gdańsk, Gdańsk, Poland
| | - Mario Turri-Zanoni
- Division of Otorhinolaryngology, Department of Biotechnology and Life Sciences (DBSV), University of Insubria, Varese, Italy
| | - Paolo Castelnuovo
- Division of Otorhinolaryngology, Department of Biotechnology and Life Sciences (DBSV), University of Insubria, Varese, Italy
| | - Cecilia Taverna
- Section of Anatomic Pathology, Department of Surgery and Translational Medicine, University of Florence, Florence, Italy
| | - Alessandro Franchi
- Department of Translational Research and of New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Stefano La Rosa
- Service of Clinical Pathology, Lausanne University Hospital, Institute of Pathology, Lausanne, Switzerland
| | - Fausto Sessa
- Department of Medicine and Surgery, University of Insubria, Varese, Italy
| | - Günter Klöppel
- Department of Pathology, Technische Universität München, München, Germany
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36
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Gallo M, Ruggeri RM, Muscogiuri G, Pizza G, Faggiano A, Colao A. Diabetes and pancreatic neuroendocrine tumours: Which interplays, if any? Cancer Treat Rev 2018; 67:1-9. [PMID: 29746922 DOI: 10.1016/j.ctrv.2018.04.013] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Revised: 04/15/2018] [Accepted: 04/17/2018] [Indexed: 01/15/2023]
Abstract
Pancreatic neuroendocrine tumours (PanNETs) represent an uncommon type of pancreatic neoplasm, whose incidence is increasing worldwide. As per exocrine pancreatic cancer, a relationship seems to exist between PanNETs and glycaemic alterations. Diabetes mellitus (DM) or impaired glucose tolerance often occurs in PanNET patients as a consequence of hormonal hypersecretion by the tumour, specifically affecting glucose metabolism, or due to tumour mass effects. On the other hand, pre-existing DM may represent a risk factor for developing PanNETs and is likely to worsen the prognosis of such patients. Moreover, the surgical and/or pharmacological treatment of the tumour itself may impair glucose tolerance, as well as antidiabetic therapies may impact tumour behaviour and patients outcome. Differently from exocrine pancreatic tumours, few data are available for PanNETs as yet on this issue. In the present review, the bidirectional association between glycaemic disorders and PanNETs has been extensively examined, since the co-existence of both diseases in the same individual represents a further challenge for the clinical management of PanNETs.
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Affiliation(s)
- Marco Gallo
- Oncological Endocrinology Unit, Department of Medical Sciences, University of Turin, AOU Città della Salute e della Scienza di Torino, Turin, Italy.
| | - Rosaria Maddalena Ruggeri
- Department of Clinical and Experimental Medicine, Unit of Endocrinology, University of Messina, Italy
| | | | - Genoveffa Pizza
- Unit of Internal Medicine, Landolfi Hospital, Solofra, Avellino, Italy
| | - Antongiulio Faggiano
- Department of Clinical Medicine and Surgery, University "Federico II", Naples, Italy
| | - Annamaria Colao
- Department of Clinical Medicine and Surgery, University "Federico II", Naples, Italy
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Brown E, Watkin D, Evans J, Yip V, Cuthbertson DJ. Multidisciplinary management of refractory insulinomas. Clin Endocrinol (Oxf) 2018; 88:615-624. [PMID: 29205458 DOI: 10.1111/cen.13528] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Revised: 11/12/2017] [Accepted: 11/29/2017] [Indexed: 12/20/2022]
Abstract
Insulinomas are predominantly benign (~90%), pancreatic neuroendocrine tumours characterized by hyperinsulinaemic hypoglycaemia. They usually present as a small (<2 cm), well-demarcated, solitary nodule that can arise in any part of the organ. Treatment for sporadic insulinomas is generally aimed at curative surgical resection with special consideration in genetic syndromes. Patients with significant hypoglycaemia can pose a difficult management challenge. In isolated cases where the patient is not medically fit for surgery or with metastatic spread, other treatment options are employed. Medical therapy with diazoxide or somatostatin analogues is commonly used first line for symptom control, albeit with variable efficacy. Other medical options are emerging, including newer targeted biological therapies, including everolimus (an mTOR inhibitor), sunitinib (a tyrosine kinase inhibitor) and pasireotide, a multisomatostatin receptor ligand. Pasireotide and everolimus both cause hyperglycaemia by physiological mechanisms synergistic with its antitumour/antiproliferative effects. Minimally invasive treatment modalities such as ethanol ablation are available in selected cases (particularly in patients unfit for surgery), peptide receptor radionuclide therapy (PRRT) can effectively control tumour growth or provide symptomatic benefit in metastatic disease, while cytotoxic chemotherapy can be used in patients with higher-grade tumours. This review considers the developments in the medical and other nonsurgical management options for cases refractory to standard medical management. Early referral to a dedicated neuroendocrine multidisciplinary team is critical considering the array of medical, oncological, interventional radiological and nuclear medical options. We discuss the evolving armamentarium for insulinomas when standard medical therapy fails.
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Affiliation(s)
- Emily Brown
- Obesity and Endocrinology Research Group, University Hospital Aintree, University of Liverpool, Liverpool, UK
| | - Daniel Watkin
- Obesity and Endocrinology Research Group, University Hospital Aintree, University of Liverpool, Liverpool, UK
| | - Jonathan Evans
- Department of Radiology, The Royal Liverpool and Broadgreen University Hospital NHS Trust, University of Liverpool, Liverpool, UK
| | - Vincent Yip
- Pancreatic Biomedical Research Unit, The Royal Liverpool and Broadgreen University Hospital NHS Trust, University of Liverpool, Liverpool, UK
| | - Daniel J Cuthbertson
- Obesity and Endocrinology Research Group, University Hospital Aintree, University of Liverpool, Liverpool, UK
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Marx SJ. Recent Topics Around Multiple Endocrine Neoplasia Type 1. J Clin Endocrinol Metab 2018; 103:1296-1301. [PMID: 29897580 PMCID: PMC6276662 DOI: 10.1210/jc.2017-02340] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Accepted: 02/02/2018] [Indexed: 12/16/2022]
Abstract
INTRODUCTION Multiple endocrine neoplasia type 1 (MEN1) is complex with regard to clinical expressions, management, and molecular pathways. Advances are being made broadly and in focused aspects. Selected topics are presented for their developments since publication of the most recent MEN1 consensus guidelines 6 years ago. METHODS Topics were selected for clinical impact or broad interest or both. For each topic, information was obtained from original reports and reviews. RESULTS The selected topics are as follows: tumor behavior and breast cancer in MEN1; foregut neuroectoderm tumor screening, biomarkers periodically to detect tumor emergence of foregut neuroectoderm tumors, 68Ga dotatate positron emission tomography/computed tomography for pancreatic and duodenal neuroectodermal tumor imaging, and glucagon-like peptide-1 receptor scintigraphy for insulinoma; therapy, the size of pancreatic neuroendocrine tumor (NET) as one criterion for surgery, minimally invasive surgery of pancreatic NETs, and 177Lu dotatate therapy; MEN1 gene, the search for the MEN1/menin pathway and MEN1 or GCM2 mutation in familial isolated hyperparathyroidism, and MEN1 mutation-positive vs mutation-negative cases of MEN1 are different. CONCLUSIONS MEN1 topics are a rich and fast-moving area. Important highlights stand out, and major and rapid advances will continue into the near future.
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Affiliation(s)
- Stephen J Marx
- Eunice Kennedy Shriver National Institute of Child Health and Human
Development, National Institutes of Health, Bethesda, Maryland
- Correspondence and Reprint Requests: Stephen J. Marx, MD, 5402 Trent Street, Chevy Chase, Maryland 20815. E-mail:
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Abstract
Pancreatic neuroendocrine tumors (pNETs) constitute a heterogenous group of malignancies with varying clinical presentation, tumor biology and prognosis. The incidence of pNETs has steadily increased during the last decades with an estimated incidence 2012 of 4.8/100,000. Recent whole genome sequencing of pNETs has demonstrated mutations in the DNA repair genes MUTYH and point mutations and gene fusions in four main pathways from chromatin remodeling, DNA damage repair, activation of mechanistic target of rapamycin (mTOR) signaling and the telomere maintenance. This new information will be the foundation for new therapies in the near future for malignant pNETs. The functioning pNETs constitute about 30-40% of all pNETs displaying nine different clinical syndromes: insulinoma, Zollinger-Ellison, Verner-Morrison, glucagonoma, somatostatinomas, ectopic adrenocorticotropic hormone (ACTH) and parathyroid hormone related peptide (PTH-rP) syndromes. Single patients might also present carcinoid syndrome. The diagnostic work-up include histopathology with the new WHO 2017 Classification, biomarkers (CgA, NSE), radiology and molecular imaging including CT-scan, magnetic resonance imaging (MRI), ultrasound and PET-scan. A cornerstone in the treatment of pNETs is surgery which is rarely curative but can reduce the clinical symptoms by debulking which also include radiofrequency ablation, embolization of liver metastases. Medical treatment includes chemotherapy and the targeted agents such as everolimus, sunitinib and peptide receptor radiotherapy (PRRT). Somatostatin analogs has for the last decades been the main stay for management for clinical symptoms related to functioning pNETs and is often combined with new targeted agents as well as chemotherapy. Long-term management of functioning pNETs need a combination of different procedures, surgery, local ablation, targeted agents and somatostatin analogs. Future therapies might be based on the recent advances in molecular genetics and tumor biology.
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Affiliation(s)
- Kjell Öberg
- Department of Medical Sciences, Endocrine Oncology, Uppsala University Hospital, Uppsala, Sweden
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40
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Patel P, Galoian K. Molecular challenges of neuroendocrine tumors. Oncol Lett 2017; 15:2715-2725. [PMID: 29456718 DOI: 10.3892/ol.2017.7680] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Accepted: 12/13/2017] [Indexed: 02/07/2023] Open
Abstract
Neuroendocrine tumors (NETs) are a very heterogeneous group that are thought to originate from the cells of the endocrine and nervous systems. These tumors develop in a number of organs, predominantly in the gastrointestinal and pulmonary systems. Clinical detection and diagnosis are reliable at the late stages when metastatic spread has occurred. However, traditional conventional therapies such as radiation and chemotherapy are not effective. In the majority of cases even surgical resection at that stage is unlikely to produce promising reusults. NETs present a serious clinical challenge, as the survival rates remain low, and as these rare tumors are very difficult to study, novel approaches and therapies are required. This review will highlight the important points of accumulated knowledge covering the molecular aspects of the role of neuroendocrine cells, hormonal peptides, the reasons for ectopic hormone production in NET, neuropeptides and epigenetic regulation as well as the other challenging questions that require further understanding.
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Affiliation(s)
- Parthik Patel
- Department of Orthopedic Surgery, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
| | - Karina Galoian
- Department of Orthopedic Surgery, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
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41
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Mazziotti G, Mosca A, Frara S, Vitale G, Giustina A. Somatostatin analogs in the treatment of neuroendocrine tumors: current and emerging aspects. Expert Opin Pharmacother 2017; 18:1679-1689. [PMID: 29067877 DOI: 10.1080/14656566.2017.1391217] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
INTRODUCTION Neuroendocrine tumors (NETs) harbor somatostatin receptors and there is a strong rationale for using somatostatin analogs (SSAs) for treatment of NETs. Areas covered: This article discusses i) pharmacology of somatostatin and its analogs; ii) antisecretory and anti-proliferative effects of SSAs in NETs; iii) efficacy and safety of emerging therapeutic regimens with first generation SSAs administered at either high doses or in combination with antineoplastic drugs; iv) efficacy and safety of pasireotide and chimeric molecules; v) efficacy of radionuclide therapy of NETs using SSAs. Expert opinion: SSAs are the first-line medical therapy for functioning and non-functioning well-differentiated NETs. In patients not responder to first generation SSAs, the increase of drug dose over the conventional regimens, the combination of SSAs with other biotherapies or molecular targeted therapies, the switch to pasireotide or the use of SSAs in radionuclide therapy may improve the therapeutic success.
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Affiliation(s)
| | - Alessandra Mosca
- b Medical Oncology , 'Maggiore della Carità' University Hospital , Novara , Italy
| | - Stefano Frara
- c Chair of Endocrinology , San Raffaele Vita-Salute University , Milan , Italy
| | - Giovanni Vitale
- d Department of Clinical Sciences and Community Health (DISCCO) , University of Milan , Milan , Italy.,e Laboratory of Geriatric and Oncologic Neuroendocrinology Research , Istituto Auxologico Italiano IRCCS , Milan , Italy
| | - Andrea Giustina
- c Chair of Endocrinology , San Raffaele Vita-Salute University , Milan , Italy
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Yaqub A, Smith EP, Salehi M. Hyperinsulinemic hypoglycemia after gastric bypass surgery: what's up and what's down? Int J Obes (Lond) 2017; 42:ijo2017257. [PMID: 29087389 PMCID: PMC6599543 DOI: 10.1038/ijo.2017.257] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 09/17/2017] [Accepted: 09/24/2017] [Indexed: 12/18/2022]
Abstract
Obesity is a global public health problem and attempts to treat this condition using life style with and without pharmacological interventions have not been successful in majority of obese individuals. To date, the most effective treatment for obesity is weight loss surgery. One of the most widely used procedures to treat obesity worldwide, Roux-en-Y gastric bypass surgery (RYGB), has shown to induce diabetes remission in addition to significant and sustainable weight loss. As the number of this procedure performed over the last two decades increased, it has become clear that a subgroup of individuals develop postprandial hypoglycemia several years after surgery. This debilitating late complication of RYGB is often associated with loss of consciousness or seizures, and in severe cases, it is only partially responsive to diet modification or other available therapeutic options. The diagnosis is often a challenge resulting in delays in receiving care in the affected individuals. Although the underlying mechanisms are under current investigations, growing evidence suggest that a combination of exaggerated meal-derived nutrient appearance to systemic circulation and altered islet and gut hormone response after eating have a role in pathogenesis of this condition. The goal of this review is to highlight new perspectives regarding this life-threatening complication of RYGB. The etiology, diagnosis, recommendation on how to distinguish from classic dumping and current available treatment based on literature review will be discussed. In addition, physiologic changes after gastric bypass predisposing to hypoglycemia syndrome will be highlighted.International Journal of Obesity advance online publication, 31 October 2017; doi:10.1038/ijo.2017.257.
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Affiliation(s)
- A Yaqub
- Division of Endocrinology, Department of Medicine, Diabetes and Metabolism, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - EP Smith
- Division of Endocrinology, Department of Medicine, Diabetes and Metabolism, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - M Salehi
- Division of Endocrinology, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA
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Pattison DA, Hicks RJ. Molecular imaging in the investigation of hypoglycaemic syndromes and their management. Endocr Relat Cancer 2017; 24:R203-R221. [PMID: 28400403 DOI: 10.1530/erc-17-0005] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Accepted: 04/07/2017] [Indexed: 12/21/2022]
Abstract
There has been recent progress in molecular imaging using a variety of cellular targets for the investigation of adult non-diabetic hypoglycaemic syndromes and its integration into patient management. These targets include peptide receptors (somatostatin receptors (SSTRs) and glucagon-like peptide-1 receptor (GLP-1R)) the amine precursor uptake and decarboxylation system utilising the diphydroxyphenylaline (DOPA) analogue 6-[18F]-l-fluoro-l-3,4-dihydroxyphenylalanine (18F-FDOPA), and glycolytic metabolism with 2-[18F]fluoro-2-deoxy-d-glucose (FDG). Accurate preoperative localisation and staging is critical to enable directed surgical excision or enucleation with minimal morbidity and preservation of residual pancreatic function. Benign insulinoma has near ubiquitous dense GLP-1R expression enabling accurate localisation with radiolabelled-exendin-4 compounds (e.g. 68Ga-NOTA-exendin-4 PET/CT), whilst the rarer and more difficult to manage metastatic insulinoma typically express SSTR and is preferably imaged with radiolabelled-SSTR analogues such as 68Ga-DOTA-octreotate (DOTATATE) PET/CT for staging and assessment of suitability for peptide receptor radionuclide therapy (PRRT). Similar to other metastatic neuroendocrine tumours, FDG PET/CT is used in the setting of higher-grade metastatic insulinoma to provide important prognostic information that can guide treatment and determine suitability for PRRT. Interestingly, these three tracers appear to represent a spectrum of differentiation, which we conceptually describe as the 'triple-flop' phenomenon, with GLP-1R > SSTR > FDG in benign insulinoma and the opposite in higher-grade disease. This paper will review the clinical syndromes of adult hypoglycaemia (including a practical overview of the differential diagnoses to be considered), comparison of techniques for insulinoma localisation with emphasis on molecular imaging before discussing its implications for management of metastatic insulinoma.
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Affiliation(s)
- David A Pattison
- Centre for Cancer ImagingPeter MacCallum Cancer Centre, Melbourne, Australia
- Endocrinology ServicePeter MacCallum Cancer Centre, Melbourne, Australia
- Department of Nuclear Medicine & Specialised PET ServicesRoyal Brisbane & Women's Hospital, Brisbane, Australia
| | - Rodney J Hicks
- Centre for Cancer ImagingPeter MacCallum Cancer Centre, Melbourne, Australia
- Neuroendocrine ServicePeter MacCallum Cancer Centre, Melbourne, Australia
- The Sir Peter MacCallum Department of OncologyUniversity of Melbourne, Melbourne, Australia
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Abstract
Insulinomas are rare neuroendocrine tumors which occur predominantly in the pancreas. Although majority of the insulinomas are benign, over-secretion of insulin by the tumor leads to debilitating hypoglycemic symptoms. The diagnosis is based on clinical and biochemical findings. After the diagnosis is made, the principal challenge lies in locating the tumor because most tumors are solitary and small in size. Locating the tumor is of paramount importance as complete surgical excision is the only curative treatment, and incomplete resection leads to persistence of symptoms. Different preoperative and intraoperative imaging techniques have been used with varying success rates for the insulinoma imaging. Besides localizing the tumor, imaging also helps to guide biopsy, detect metastatic lesions, and perform image-guided therapeutic procedures. This review will discuss the role of different Cross sectional and nuclear medicine imaging modalities in insulinomas.
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45
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Cidon EU. New therapeutic approaches to metastatic gastroenteropancreatic neuroendocrine tumors: A glimpse into the future. World J Gastrointest Oncol 2017; 9:4-20. [PMID: 28144395 PMCID: PMC5241526 DOI: 10.4251/wjgo.v9.i1.4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 10/13/2016] [Accepted: 11/21/2016] [Indexed: 02/05/2023] Open
Abstract
Neuroendocrine (NE) gastroenteropancreatic tumors are a heterogeneous group of neoplasias arising from neuroendocrine cells of the embryological gut. Their incidence have increased significantly over the past 3 decades probably due to the improvements in imaging and diagnosis. The recent advances in molecular biology have translated into an expansion of therapeutic approaches to these patients. Somatostatin analogs, which initially were approved for control of hormonal syndromes, have recently been proven to inhibit tumor growth. Several new drugs such as antiangiogenics and others targeting mammalian target of rapamycin pathways have been approved to treat progressive pancreatic neuroendocrine tumors (NETs) although their role in non-pancreatic is still controversial. The treatment of NETs requires a coordinated multidisciplinary approach. The management of localized NETs primarily involves surgical resection followed by surveillance. However, the treatment of unresectable and/or metastatic disease may involve a combination of surgical resection, systemic therapy, and liver-directed therapies with the goal of alleviating symptoms of peptide release and controlling tumor growth. This article will review the current therapeutic strategies for metastatic gastroenteropancreatic NETs and will take a glimpse into the future approaches.
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46
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Arunraj ST, Damle NA, Bal C, Gupta Y, Pal S. Insulinoma - The incremental value of somatostatin receptor positron emission tomography. Indian J Endocrinol Metab 2017; 21:255-256. [PMID: 28217530 PMCID: PMC5240074 DOI: 10.4103/2230-8210.196025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Affiliation(s)
- S. T. Arunraj
- Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, India
| | | | - Chandrasekhar Bal
- Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Yashdeep Gupta
- Department of Endocrinology, All India Institute of Medical Sciences, New Delhi, India
| | - Sujoy Pal
- Department of Gastrointestinal Surgery, All India Institute of Medical Sciences, New Delhi, India
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Davi MV, Pia A, Guarnotta V, Pizza G, Colao A, Faggiano A. The treatment of hyperinsulinemic hypoglycaemia in adults: an update. J Endocrinol Invest 2017; 40:9-20. [PMID: 27624297 DOI: 10.1007/s40618-016-0536-3] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Accepted: 08/17/2016] [Indexed: 12/16/2022]
Abstract
BACKGROUND Treatment of hyperinsulinemic hypoglycaemia (HH) is challenging due to the rarity of this condition and the difficulty of differential diagnosis. The aim of this article is to give an overview of the recent literature on the management of adult HH. METHODS A search for reviews, original articles, original case reports between 1995 and 2016 in PubMed using the following keywords: hyperinsulinemic hypoglycaemia, insulinoma, nesidioblastosis, gastric bypass, autoimmune hypoglycaemia, hyperinsulinism, treatment was performed. RESULTS One hundred and forty articles were selected and analysed focusing on the most recent treatments of HH. CONCLUSIONS New approaches to treatment of HH are available including mini-invasive surgical techniques and alternative local-regional ablative therapy for benign insulinoma and everolimus for malignant insulinoma. A correct differential diagnosis is of paramount importance to avoid unnecessary surgical operations and to implement the appropriate treatment mainly in the uncommon forms of HH, such as nesidioblastosis and autoimmune hypoglycaemia.
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Affiliation(s)
- M V Davi
- Section of Endocrinology, Medicina Generale e Malattie Aterotrombotiche e Degenerative, Department of Medicine, University of Verona, Piazzale LA Scuro, Policlinico G.B. Rossi, 37134, Verona, Italy.
| | - A Pia
- Internal Medicine I, Department of Clinical and Biological Sciences, University of Turin, San Luigi Hospital, Orbassano, Italy
| | - V Guarnotta
- Section of Endocrinology, Biomedical Department of Internal and Specialist Medicine (DIBIMIS), University of Palermo, Palermo, Italy
| | - G Pizza
- Endocrinology Unit, Department of Clinical Medicine and Surgery, University of Naples Federico II, Naples, Italy
| | - A Colao
- Endocrinology Unit, Department of Clinical Medicine and Surgery, University of Naples Federico II, Naples, Italy
| | - A Faggiano
- Thyroid and Parathyroid Surgery Unit, Istituto Nazionale per lo Studio e la Cura dei Tumori "Fondazione G. Pascale" IRCCS, Naples, Italy
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Small Cell Carcinomas of the Bladder Highly Express Somatostatin Receptor Type 2A: Impact on Prognosis and Treatment--A Multicenter Study of Urooncology Society, Turkey. Appl Immunohistochem Mol Morphol 2016; 24:253-60. [PMID: 25906124 DOI: 10.1097/pai.0000000000000188] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Small cell carcinoma (SmCC) is a rare and aggressive neuroendocrine carcinoma of the bladder. Neuroendocrine carcinomas expressing somatostatin receptors (SSTR) in other viscera such as lung, pancreas, and gastrointestinal system respond to therapy with somatostatin analogs. In the present study, expressions of SSTRs 1 to 5 including type 2A are investigated by immunohistochemistry (IHC) and their relationship with clinicopathologic factors was evaluated. Hundred primary bladder SmCC cases were collected from 12 centers in Turkey. Forty-three cases were pure SmCC. Other cases had mostly papillary urothelial carcinoma as a second component. The percentage of the SmCC component ranged from 5% to 100%. SSTR-2A expression was membranous, whereas the other receptors showed cytoplasmic staining. The percentages of positive cases for SSTR-1, SSTR-2A, SSTR-3, SSTR-4, and SSTR-5 were 4% (3/75), 61.4% (54/88), 2.4% (2/84), 24.4% (20/82), and 6.25% (5/80), respectively. The percentage of SmCC component was positively correlated with the percentage of SSTR-2A expression (P=0.003) while negatively correlated with patient age (P=0.032). SSTR-2A expression was correlated with survival as a bad prognostic factor (P=0.018). SSTR-1, SSTR-3, SSTR-4, and SSTR-5 expressions did not show any statistical significance with any parameter. In conclusion, although the limited number of cases with adequate term follow-up, SSTR-2A expression could be a prognostic factor and somatostatin analogs therapeutic candidate for SmCCs of the bladder as these tumors show high percentage of SSTR-2A expression.
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Affiliation(s)
- Clement Chung
- Lyndon B. Johnson General Hospital, Harris Health System, Houston, TX
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Ito T, Lee L, Jensen RT. Treatment of symptomatic neuroendocrine tumor syndromes: recent advances and controversies. Expert Opin Pharmacother 2016; 17:2191-2205. [PMID: 27635672 DOI: 10.1080/14656566.2016.1236916] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
INTRODUCTION Neuroendocrine tumors(NETs), once thought rare, are increasing in frequency in most countries and receiving increasing-attention. NETs present two-treatment problems. A proportion is aggressive and a proportion has a functional, hormone-excess-state(F-NET), each of which must be treated. Recently, there have been many advances, well-covered in reviews/consensus papers on imaging-NETs; new, novel anti-tumor treatments and understanding their pathogenesis. However, little attention has been paid to advances in the treatment of the hormone-excess-state. These advances are usually reported in case-series, and case-reports with few large studies. In this paper these advances are reviewed. Areas covered: Advances in the last 5-years are concentrated on, but a review of literature from the last 10-years was performed. PubMed and other databases (Cochrane, etc.) were searched for F-NET-syndromes including carcinoid-syndrome, as well as meeting-abstracts on NETs. All advances that controlled hormone-excess-states or facilitated-control were covered. These include new medical-therapies [serotonin-synthesis inhibitors(telotristat), Pasireotide, new agents for treating ACTHomas], increased dosing with conventional therapies (octreotide-LAR, Lanreotide-Autogel), mTor inhibitors(everolimus), Tyrosine-kinase inhibitors(sunitinib),cytoreductive surgery, liver-directed therapies (embolization, chemoembolization, radioembolization, RFA), peptide radio-receptor-therapy(PRRT) and 131I-MIBG, ablation of primary F-NETs. Expert opinion: Although many of the newer therapies controlling the hormone-excess-states in F-NETs are reported in relatively few patients, all the approaches show promise. Their description also generates some controversies/unresolved areas,such as the order of these new treatments, their longterm-efficacy, and effectiveness of combinations which may require large,controlled studies.
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Affiliation(s)
- Tetsuhide Ito
- a Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences , Kyushu University , Fukuoka , Japan
| | - Lingaku Lee
- a Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences , Kyushu University , Fukuoka , Japan
| | - Robert T Jensen
- b Digestive Diseases Branch , NIDDK, NIH , Bethesda , MD , USA
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