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Hong H, Mocci E, Kamp K, Zhu S, Cain KC, Burr RL, Perry J, Heitkemper MM, Weaver-Toedtman KR, Dorsey SG. Genetic Variations in TrkB.T1 Isoform and Their Association with Somatic and Psychological Symptoms in Individuals with IBS. medRxiv 2023:2023.09.14.23295434. [PMID: 37745409 PMCID: PMC10516087 DOI: 10.1101/2023.09.14.23295434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
Irritable bowel syndrome (IBS), a disorder of gut-brain interaction, is often comorbid with somatic pain and psychological disorders. Dysregulated signaling of brain-derived neurotrophic factor (BDNF) and its receptor, tropomyosin-related kinase B (TrkB), has been implicated in somatic-psychological symptoms in individuals with IBS. Thus, we investigated the association of 10 single nucleotide polymorphisms (SNPs) in the regulatory 3' untranslated region (UTR) of NTRK2 (TrkB) kinase domain-deficient truncated isoform (TrkB.T1) and the BDNF Val66Met SNP with somatic and psychological symptoms and quality of life in a U.S. cohort (IBS n=464; healthy controls n=156). We found that the homozygous recessive genotype (G/G) of rs2013566 in individuals with IBS is associated with worsened somatic symptoms, including headache, back pain, joint pain, muscle pain, and somatization as well as diminished sleep quality, energy level and overall quality of life. Validation using U.K. BioBank (UKBB) data confirmed the association of rs2013566 with increased likelihood of headache. Several SNPs (rs1627784, rs1624327, rs1147198) showed significant associations with muscle pain in our U.S. cohort. Notably, these SNPs are predominantly located in H3K4Me1-enriched regions, suggesting their enhancer and/or transcription regulation potential. Together, our findings suggest that genetic variation within the 3'UTR region of the TrkB.T1 isoform may contribute to comorbid conditions in individuals with IBS, resulting in a spectrum of somatic and psychological symptoms that may influence their quality of life. These findings advance our understanding of the genetic interaction between BDNF/TrkB pathways and somatic-psychological symptoms in IBS, highlighting the importance of further exploring this interaction for potential clinical applications.
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Affiliation(s)
- H Hong
- Department of Biobehavioral Health Sciences, University of Pennsylvania School of Nursing
| | - E Mocci
- Department of Pain and Translational Symptom Science, University of Maryland School of Nursing
| | - K Kamp
- Department of Biobehavioral Nursing and Health Informatics, University of Washington School of Nursing
| | - S Zhu
- Department of Organizational Systems and Adult Health, University of Maryland School of Nursing
| | - K C Cain
- Department of Biostatistics, University of Washington School of Nursing
| | - R L Burr
- Department of Biobehavioral Nursing and Health Informatics, University of Washington School of Nursing
| | - J Perry
- Department of Medicine, University of Maryland School of Medicine
| | - M M Heitkemper
- Department of Biobehavioral Nursing and Health Informatics, University of Washington School of Nursing
| | - K R Weaver-Toedtman
- Department of Biobehavioral Health and Nursing Science, University of South Carolina College of Nursing
| | - S G Dorsey
- Department of Pain and Translational Symptom Science, University of Maryland School of Nursing
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Kamp K, Li N, Lachance DM, Saad K, Tolentino E, Yoo L, Heitkemper MM, Clark-Snustad K, Lee SD, Dey N. Interpersonal Variability in Gut Microbial Calprotectin Metabolism. Gastro Hep Adv 2022; 1:853-856. [PMID: 36160305 PMCID: PMC9494624 DOI: 10.1016/j.gastha.2022.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- K Kamp
- Division of Gastroenterology, Department of Medicine, University of Washington, Seattle, Washington
- Department of Biobehavioral Nursing and Health Informatics, School of Nursing, University of Washington, Seattle, Washington
| | - N Li
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, Washington
| | - D M Lachance
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, Washington
| | - K Saad
- Department of Biobehavioral Nursing and Health Informatics, School of Nursing, University of Washington, Seattle, Washington
| | - E Tolentino
- Division of Gastroenterology, Department of Medicine, University of Washington, Seattle, Washington
| | - L Yoo
- Department of Biobehavioral Nursing and Health Informatics, School of Nursing, University of Washington, Seattle, Washington
| | - M M Heitkemper
- Department of Biobehavioral Nursing and Health Informatics, School of Nursing, University of Washington, Seattle, Washington
| | - K Clark-Snustad
- Division of Gastroenterology, Department of Medicine, University of Washington, Seattle, Washington
| | - S D Lee
- Division of Gastroenterology, Department of Medicine, University of Washington, Seattle, Washington
| | - N Dey
- Division of Gastroenterology, Department of Medicine, University of Washington, Seattle, Washington
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, Washington
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Vandamme T, Beyens M, Boons G, Schepers A, Kamp K, Biermann K, Pauwels P, De Herder WW, Hofland LJ, Peeters M, Van Camp G, Op de Beeck K. Hotspot DAXX, PTCH2 and CYFIP2 mutations in pancreatic neuroendocrine neoplasms. Endocr Relat Cancer 2019; 26:1-12. [PMID: 30021865 DOI: 10.1530/erc-18-0120] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 07/18/2018] [Indexed: 12/20/2022]
Abstract
Mutations in DAXX/ATRX, MEN1 and genes involved in the phosphoinositide-3-kinase/Akt/mammalian target of rapamycin (PI3K/Akt/mTOR) pathway have been implicated in pancreatic neuroendocrine neoplasms (pNENs). However, mainly mutations present in the majority of tumor cells have been identified, while proliferation-driving mutations could be present only in small fractions of the tumor. This study aims to identify high- and low-abundance mutations in pNENs using ultra-deep targeted resequencing. Formalin-fixed paraffin-embedded matched tumor-normal tissue of 38 well-differentiated pNENs was sequenced using a HaloPlex targeted resequencing panel. Novel amplicon-based algorithms were used to identify both single nucleotide variants (SNVs) and insertion-deletions (indels) present in >10% of reads (high abundance) and in <10% of reads (low abundance). Found variants were validated by Sanger sequencing. Sequencing resulted in 416,711,794 reads with an average target base coverage of 2663 ± 1476. Across all samples, 32 high-abundance somatic, 3 germline and 30 low-abundance mutations were withheld after filtering and validation. Overall, 92% of high-abundance and 84% of low-abundance mutations were predicted to be protein damaging. Frequently, mutated genes were MEN1, DAXX, ATRX, TSC2, PI3K/Akt/mTOR and MAPK-ERK pathway-related genes. Additionally, recurrent alterations on the same genomic position, so-called hotspot mutations, were found in DAXX, PTCH2 and CYFIP2. This first ultra-deep sequencing study highlighted genetic intra-tumor heterogeneity in pNEN, by the presence of low-abundance mutations. The importance of the ATRX/DAXX pathway was confirmed by the first-ever pNEN-specific protein-damaging hotspot mutation in DAXX. In this study, both novel genes, including the pro-apoptotic CYFIP2 gene and hedgehog signaling PTCH2, and novel pathways, such as the MAPK-ERK pathway, were implicated in pNEN.
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Affiliation(s)
- T Vandamme
- Center of Oncological Research (CORE), University of Antwerp, Antwerp, Belgium
- Section of Endocrinology, Department of Internal Medicine, Erasmus Medical Center, Rotterdam, The Netherlands
| | - M Beyens
- Center of Oncological Research (CORE), University of Antwerp, Antwerp, Belgium
| | - G Boons
- Center of Oncological Research (CORE), University of Antwerp, Antwerp, Belgium
| | - A Schepers
- Center of Medical Genetics, University of Antwerp, Antwerp, Belgium
| | - K Kamp
- Section of Endocrinology, Department of Internal Medicine, Erasmus Medical Center, Rotterdam, The Netherlands
| | - K Biermann
- Department of Pathology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - P Pauwels
- Department of Pathology, University of Antwerp, Antwerp, Belgium
| | - W W De Herder
- Section of Endocrinology, Department of Internal Medicine, Erasmus Medical Center, Rotterdam, The Netherlands
| | - L J Hofland
- Section of Endocrinology, Department of Internal Medicine, Erasmus Medical Center, Rotterdam, The Netherlands
| | - M Peeters
- Center of Oncological Research (CORE), University of Antwerp, Antwerp, Belgium
| | - G Van Camp
- Center of Medical Genetics, University of Antwerp, Antwerp, Belgium
| | - K Op de Beeck
- Center of Oncological Research (CORE), University of Antwerp, Antwerp, Belgium
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Werner C, Hagman M, Kamp K, Fristrup B, Hornstrup T, Meyer T, Boehm M, Laufs U, Krustrup P. P660Effects of soccer training on telomere length and telomerase activity in young and aged soccer players. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.p660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- C Werner
- Universitätsklinikum des Saarlandes - Klinik für Innere Medizin III, Homburg, Germany
| | - M Hagman
- University of Southern Denmark, Department of Sports Science and Clinical Biomechanics, Odense, Denmark
| | - K Kamp
- Universitätsklinikum des Saarlandes - Klinik für Innere Medizin III, Homburg, Germany
| | - B Fristrup
- University of Southern Denmark, Department of Sports Science and Clinical Biomechanics, Odense, Denmark
| | - T Hornstrup
- University of Copenhagen, Department of Nutrition, Exercise and Sports, Copenhagen, Denmark
| | - T Meyer
- Saarland University, Institut für Sport- und Präventivmedizin, Saarbrucken, Germany
| | - M Boehm
- Universitätsklinikum des Saarlandes - Klinik für Innere Medizin III, Homburg, Germany
| | - U Laufs
- Leipzig University Hospital, Klinik und Poliklinik für Kardiologie, Leipzig, Germany
| | - P Krustrup
- University of Southern Denmark, Department of Sports Science and Clinical Biomechanics, Odense, Denmark
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Kamp K, Alwani RA, Korpershoek E, Franssen GJH, de Herder WW, Feelders RA. Prevalence and clinical features of the ectopic ACTH syndrome in patients with gastroenteropancreatic and thoracic neuroendocrine tumors. Eur J Endocrinol 2016; 174:271-80. [PMID: 26643855 DOI: 10.1530/eje-15-0968] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 12/07/2015] [Indexed: 01/06/2023]
Abstract
OBJECTIVE Several series report on the relative contribution of ectopic ACTH syndrome (EAS) in the spectrum of Cushing's syndrome. However, prevalence of EAS in patients with thoracic or gastroenteropancreatic neuroendocrine tumors (GEP-NETs) is currently unknown. DESIGN We assessed, in a tertiary referral center, the prevalence of EAS in a large cohort of thoracic and GEP-NET patients including clinical, biochemical, and radiological features; management; and treatment outcome. METHODS In total, 918 patients with thoracic or GEP-NETs were studied (1993-2012). Multiple endocrine neoplasia type 1 and small cell lung carcinoma patients were excluded. Differentiation between synchronous, metachronous, and cyclic occurrence of EAS was made. RESULTS Out of the 918 patients with thoracic and GEP-NETs (469 males and 449 females; median age 58.7 years (range: 17.3-87.3)), 29 patients (3.2%) had EAS (ten males and 19 females; median age 48.1 years (range: 24.7-77.9)). EAS occurred synchronously in 23 patients (79%), metachronously in four patients (14%), and cyclical in two patients (7%) respectively. NETs causing EAS included lung/bronchus (n=9), pancreatic (n=9), and thymic (n=4). In four patients, the cause of EAS was unknown (n=4). Median overall survival (OS) of non-EAS thoracic and GEP-NET patients was 61.2 months (range: 0.6-249.4). Median OS of EAS patients was 41.4 months (range: 2.2-250.9). After comparison, only the first 5-year survival was significantly shorter (P=0.013) in EAS patients. CONCLUSION Prevalence of EAS in this large cohort of patients with thoracic and GEP-NETs was 3.2%. EAS was mostly caused by thoracic and pancreatic NETs. First 5-year survival of EAS patients was shorter compared with non-EAS patients.
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Affiliation(s)
- K Kamp
- Sector of EndocrinologyDepartment of Internal MedicineDepartment of PathologyDepartment of Surgery, ENETS Center of Excellence, Erasmus Medical Center's-Gravendijkwal 230, 3015 CE Rotterdam, The Netherlands
| | - R A Alwani
- Sector of EndocrinologyDepartment of Internal MedicineDepartment of PathologyDepartment of Surgery, ENETS Center of Excellence, Erasmus Medical Center's-Gravendijkwal 230, 3015 CE Rotterdam, The Netherlands
| | - E Korpershoek
- Sector of EndocrinologyDepartment of Internal MedicineDepartment of PathologyDepartment of Surgery, ENETS Center of Excellence, Erasmus Medical Center's-Gravendijkwal 230, 3015 CE Rotterdam, The Netherlands
| | - G J H Franssen
- Sector of EndocrinologyDepartment of Internal MedicineDepartment of PathologyDepartment of Surgery, ENETS Center of Excellence, Erasmus Medical Center's-Gravendijkwal 230, 3015 CE Rotterdam, The Netherlands
| | - W W de Herder
- Sector of EndocrinologyDepartment of Internal MedicineDepartment of PathologyDepartment of Surgery, ENETS Center of Excellence, Erasmus Medical Center's-Gravendijkwal 230, 3015 CE Rotterdam, The Netherlands
| | - R A Feelders
- Sector of EndocrinologyDepartment of Internal MedicineDepartment of PathologyDepartment of Surgery, ENETS Center of Excellence, Erasmus Medical Center's-Gravendijkwal 230, 3015 CE Rotterdam, The Netherlands
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van Schaik E, van Vliet EI, Feelders RA, Krenning EP, Khan S, Kamp K, Valkema R, van Nederveen FH, Teunissen JJM, Kwekkeboom DJ, de Herder WW. Improved control of severe hypoglycemia in patients with malignant insulinomas by peptide receptor radionuclide therapy. J Clin Endocrinol Metab 2011; 96:3381-9. [PMID: 21917872 DOI: 10.1210/jc.2011-1563] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
CONTEXT Insulinomas are relatively rare neuroendocrine tumors of the pancreas. Only 10% are considered malignant. Control of insulin hypersecretion and hypoglycemia in patients with malignant insulinomas may be extremely difficult. Different medications and chemotherapy schedules have been used. PATIENTS Five patients with metastatic insulinomas and severe, poorly controllable, hypoglycemia are described. These patients required continuous glucose infusion to control severe hypoglycemia, which were induced by the high levels of insulin secretion. Conventional medications, such as diazoxide, or streptozotocin-based chemotherapies had been used to control hypoglycemia but were ineffective and/or produced adverse effects. All patients were treated with sc octreotide. INTERVENTION Peptide receptor radionuclide therapy with radiolabeled-somatostatin analogs was used. RESULTS After the start of radiolabeled somatostatin analog therapy, the five patients with metastatic insulinomas had stable disease for a mean period of 27 months. During these months, the patients were without any hypoglycemic episodes. Finally, three of five patients died because of progressive disease. CONCLUSIONS Radiolabeled somatostatin analog therapy can stabilize tumor growth and can be very successful in further controlling severe hypoglycemia in malignant insulinomas. In our series, this eventually resulted in improved survival outside the hospital setting.
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Affiliation(s)
- E van Schaik
- Department of Internal Medicine, Section of Endocrinology, Erasmus Medical Center, 's Gravendijkwal 230, 3015 CE Rotterdam, The Netherlands
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Kamp K. [Statistical bases of epidemiological models for the prediction of tuberculosis morbidity]. Pneumonologie 1971; 145:1-6. [PMID: 5128448 DOI: 10.1007/bf02095002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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