Cited by 31Thyroid Cancer Diagnosis and TreatmentWnt/β-catenin signaling in development and cancerThyroid Disorders and Treatments

LGR5 is associated with tumor aggressiveness in papillary thyroid cancer

Open access
Michelotti, Gregory, Jiang, Xiaoyin, Sosa, Julie Ann, Diehl, Anna Mae, Henderson, Brittany Bohinc·2015·Oncotarget

Abstract

// Gregory Michelotti 1 , Xiaoyin Jiang 2 , Julie Ann Sosa 3 , Anna Mae Diehl 1 , Brittany Bohinc Henderson 4 1 Division of Gastroenterology, Duke University Medical Center, Durham, North Carolina, USA 2 Department of Pathology, Duke University Medical Center, Durham, North Carolina, USA 3 Department of Surgery, Duke University Medical Center, Durham, North Carolina, USA 4 Division of Endocrinology, Diabetes and Metabolism, Wake Forest University, Winston-Salem, North Carolina, USA Correspondence to: Brittany Bohinc Henderson, e-mail: bbhender@wakehealth.edu Keywords: R-spondin, Wnt, β-catenin, metastasis, BRAFV600E Received: May 07, 2015 Accepted: September 14, 2015 Published: September 25, 2015 ABSTRACT PURPOSE: Leucine-rich repeat-containing G-protein-coupled receptor 5 (LGR5) is a cancer stem cell marker and a down-stream target in Wnt/β-catenin signaling. In human papillary thyroid cancer (PTC), over activation of Wnt/β-catenin has been associated with tumor aggressiveness. PATIENTS AND METHODS: Using established human cell lines (TPC-1, KTC-1, Nthy-ori-3–1), we report LGR5 and R-spondin (RSPO1–3) overexpression in PTC and manipulate LGR5 and Wnt/β-catenin signaling via both pharmacologic and genetic interventions. We test the association of LGR5 tumor expression with markers of PTC aggressiveness using a Discovery Cohort ( n = 26 patients) and a Validation Cohort ( n = 157 patients). Lastly, we explore the association between LGR5 and the BRAFV600E mutation ( n = 33 patients). RESULTS: Our results reveal that LGR5 and its ligand, RSPO, are overexpressed in human PTC, whereby Wnt/β-catenin signaling regulates LGR5 expression and promotes cellular migration. In two separate cohorts of patients, LGR5 and RSPO2 were associated with markers of tumor aggressiveness including: lymph node metastases, vascular invasion, increased tumor size, aggressive histology, advanced AJCC TNM stage, microscopic extra thyroidal extension, capsular invasion, and macroscopic invasion. As a biomarker, LGR5 positivity predicts lymph node metastasis with 95.5% sensitivity (95% CI 88.8%-98.7%) and 61% specificity (95% CI: 48.4%–72.4%) and has a negative predictive value (NPV) of 91.3% (95% CI 79.2%–97.5%) for lymph node metastatic disease. In human PTC, LGR5 is also strongly associated with the BRAFV600E mutation ( p = 0.005). CONCLUSION: We conclude that overexpression of LGR5 is associated with markers of tumor aggressiveness in human PTC. LGR5 may serve as a future potential biomarker for patient risk stratification and loco regional metastases in PTC.

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  1. [18]de Lau W Barker N Low TY Koo BK Li VS Teunissen H Kujala P Haegebarth A Peters PJ van de Wetering M Stange DE van Es JE Guardavaccaro D LGR5 homologues associate with Wnt receptors and mediate R-spondin signaling Nature 2011 476 293 7 21727895
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Authors
Michelotti, G., Jiang, X., Sosa, J. A., Diehl, A. M., & Henderson, B. B.
Affiliations
  • Duke Medical Center (US)
  • Wake Forest University (US)
Venue
Oncotarget
Published
2015-09-25
Volume
6
Issue
33
Pages
34549-34560
ISSN
1949-2553 (ISSN-L)
OpenAlex
W2210149345
Cited by
31
References
42
Citations by year
2026: 1 · 2025: 2 · 2024: 1 · 2023: 1 · 2022: 1 · 2021: 1 · 2020: 2 · 2019: 3 · 2018: 8 · 2017: 8 · 2016: 1 · 2015: 2
FWCI
5.51
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Oncotarget (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
  • eScholarship (California Digital Library) (submittedVersion, cc-by)
Funders
  • American Thyroid Association
  • National Institutes of Health (5rc2aa019399-02, AA010154)
  • National Institute on Alcohol Abuse and Alcoholism (RC2-AA019399, R01AA010154)
  • National Institute of Diabetes and Digestive and Kidney Diseases (UO1DK061713, U01DK061713, R01DK053792)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Thyroid Cancer Diagnosis and Treatment
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Wnt/β-catenin signaling in development and cancer
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Thyroid Disorders and Treatments
Keywords
Lgr5, papillary thyroid carcinoma, R-spondin, RSPO2, Wnt/β-catenin signaling, tumor aggressiveness, lymph node metastasis, BRAF V600E mutation, cancer stem cells, cell migration, prognostic factors, vascular invasion, extrathyroidal extension, capsular invasion
MeSH terms
Thyroid Cancer, Papillary, R-Spondins, Adult, Carcinoma, Carcinoma, Papillary, Female, Humans, Immunohistochemistry, Lymphatic Metastasis, Male, Middle Aged, Mutation, Sensitivity and Specificity, Thyroid Neoplasms, Biomarkers, Tumor, Thrombospondins, Receptors, G-Protein-Coupled, Cell Line, Tumor, Proto-Oncogene Proteins B-raf, Cell Proliferation, beta Catenin, Gene Knockdown Techniques, Wnt Signaling Pathway, Real-Time Polymerase Chain Reaction

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