scholarly journals Evidence that polymorphisms in detoxification genes modulate the susceptibility for sporadic medullary thyroid carcinoma

2012 ◽  
Vol 166 (2) ◽  
pp. 241-245 ◽  
Author(s):  
R B Barbieri ◽  
N E Bufalo ◽  
R Secolin ◽  
A C N Silva ◽  
L V M Assumpção ◽  
...  

AimPolymorphic low-penetrance genes have been consistently associated with the susceptibility to a series of human tumors, including differentiated thyroid cancer.MethodsTo determine their role in medullary thyroid cancer (MTC), we used TaqMan SNP method to genotype 47 sporadic MTC (s-MTC) and a control group of 578 healthy individuals for CYP1A2*F, CYP1A1m1, GSTP1, NAT2 and 72TP53. A logistic regression analysis showed that NAT2C/C (OR=3.87; 95% CI=2.11–7.10; P=2.2×10−5) and TP53C/C genotypes (OR=3.87; 95% CI=1.78–6.10; P=2.8×10−4) inheritance increased the risk of s-MTC. A stepwise regression analysis indicated that TP53C/C genotype contributes with 8.07% of the s-MTC risk.ResultsWe were unable to identify any relationship between NAT2 and TP53 polymorphisms suggesting they are independent factors of risk to s-MTC. In addition, there was no association between the investigated genes and clinical or pathological features of aggressiveness of the tumors or the outcome of MTC patients.ConclusionIn conclusion, we demonstrated that detoxification genes and apoptotic and cell cycle control genes are involved in the susceptibility of s-MTC and may modulate the susceptibility to the disease.

2010 ◽  
Vol 28 (15_suppl) ◽  
pp. 5586-5586 ◽  
Author(s):  
M. E. Cabanillas ◽  
R. Kurzrock ◽  
S. I. Sherman ◽  
A. M. Tsimberidou ◽  
S. Waguespack ◽  
...  

2014 ◽  
Vol 32 (15_suppl) ◽  
pp. 6027-6027 ◽  
Author(s):  
Jaume Capdevila ◽  
Jose Manuel Trigo Perez ◽  
Javier Aller ◽  
Jose Luis Manzano ◽  
Silvia Garcia Adrian ◽  
...  

2009 ◽  
Vol 94 (1) ◽  
pp. 164-170 ◽  
Author(s):  
Jennifer A. Woyach ◽  
Richard T. Kloos ◽  
Matthew D. Ringel ◽  
Daria Arbogast ◽  
Minden Collamore ◽  
...  

Abstract Context: Aberrant histone deacetylase activity is seen in a variety of malignancies, and histone deacetylase inhibitors such as vorinostat have been shown to induce cell death and sensitize cells to cytotoxic chemotherapy in thyroid cancer cell lines. This phase II study was undertaken to assess objective response to vorinostat in patients with advanced thyroid cancer. Experimental Design: A total of 19 patients with differentiated thyroid cancer (n = 16) and medullary thyroid cancer (n = 3) were enrolled in the study. Patients received oral vorinostat at a starting dose of 200 mg twice daily, with dose adjustments allowed as necessary for toxicity. Patients were treated for 2 wk, followed by 1 wk off therapy (3-wk cycle) until disease progression or study withdrawal. Responses were measured by Response Evaluation Criteria in Solid Tumors criteria and correlated with tumor markers. Results: No patient achieved a partial or complete response. Median duration of therapy in patients with differentiated thyroid cancer was 17 wk, whereas in medullary thyroid cancer patients it was 25 wk. Reasons for termination included progression of disease by RECIST criteria (n = 7), clinical progression (n = 3), and adverse events (AEs) (n = 9). AEs were primarily grade 1–3; no clinical grade 4 or grade 5 events were observed. Clinical grade 3 AEs consisted of fatigue, dehydration, ataxia, pneumonia, bruises, and deep vein thrombosis. Severe thrombocytopenia was seen in seven patients (grade 3, n = 5; grade 4, n = 2) and was associated with minor bleeding or bruises. Conclusions: Vorinostat at this dose and schedule is not an effective treatment for advanced thyroid cancer.


2018 ◽  
Vol 40 (4) ◽  
pp. 299-302
Author(s):  
R Abooshahab ◽  
E Niyazi ◽  
P Yaghmaie ◽  
H G Ghadaksaz ◽  
M Hedayati

Aim: Adipokines are the proteins secreted from adipose tissue and play an important role in the control of metabolism. Dipeptidyl peptidase-4 (DPP4) is a novel adipokine with different biological role. As indicated by various studies, serum levels of DPP4 had been associated with body mass index (BMI), insulin resistance, metabolic syndrome and malignancy. The aim of this study was to assess the serum levels of DPP4 in patients with medullary thyroid cancer (MTC) in comparison with these in the control group. Materials and Methods: This study was performed on 45 MTC patients (24 females and 21 males) and 45 healthy controls (21 females and 24 males). DPP4 and insulin serum levels were measured by ELISA, fasting glucose serum levels by enzymecalorimetric method and insulin resistance index (HOMA-IR) by calculation using relevant equation. BMI (kg/m2) was also calculated. Results: Our data did not demonstrate a significant difference between serum DPP4 levels in MTC and healthy group (41.06 ± 22.08 ng/ml vs 39.94 ± 20.77 ng/ml, p > 0.05). Additionally, no significant difference was found in serum insulin and HOMA-IR concentrations between MTC patients and the controls (p > 0.05). Conclusions: This study suggests that the fluctuation in the levels of DPP4 does not play an important role in prognosis, early detection and diagnosis of MTC. Furthermore, higher levels of DPP4 cannot be considered as a risk factor for MTC.


2019 ◽  
Vol 37 (15_suppl) ◽  
pp. e17578-e17578 ◽  
Author(s):  
Johanna Wassermann ◽  
Elise Mathy ◽  
Geraldine Lescaille ◽  
Marine Slim ◽  
Camille Buffet ◽  
...  

e17578 Background: Few data exist regarding the use of denosumab in patients with bone metastases from radioactive iodine (RAI) refractory differentiated thyroid cancer (DTC) and advanced medullary thyroid cancer (MTC). We aimed to describe adverse events of specific interest - osteonecrosis of the jaw (ONJ) and severe hypocalcemia - in this rare setting. Methods: We retrospectively reviewed the charts of all the patients treated with denosumab for bone metastases from RAI-refractory DTC and advanced MTC in our institution. All patients had a calcium measurement and a clinical and radiological dental screening before denosumab initiation. All patients without hypercalcemia received a calcium supplementation. We assessed associations between ONJ or severe hypocalcemia ( < 1.75mmol/L) and suspected risk factors by Fisher exact tests. Results: Between 2014 and 2018, 23 patients were treated with denosumab. Two-thirds of patients were male (n = 16), median age was 69 years (range 43-87). Histology was DTC and MTC in 19 (83%) and 4 (17%) patients, respectively. DTC patients had received a median cumulated dose (CD) of 300 mCi of RAI (range 100-700). Ten patients (43%) had at least one cervical surgery for recurrence or persistence, and 6 (26%) had cervical radiotherapy. Four patients had hypoparathyroidism before denosumab initiation. Two-thirds of patients ( n =15) received a tyrosine kinase inhibitor (TKI) in association with denosumab. The median duration of denosumab was 20 months (range 1-47). ONJ occurred in 6 patients (26%) and severe hypocalcemia in 3 patients (13%). Conclusions: Patients with RAI-refractory DTC and advanced MTC are at high risk of ONJ and severe hypocalcemia under denosumab treatment. Benefit/risk ratio should be highly weighted particularly when treatment is prolonged. Patients should be closely monitored for the risk of ONJ and hypocalcemia. [Table: see text]


Author(s):  
M. Capezzone ◽  
E. Robenshtok ◽  
S. Cantara ◽  
M. G. Castagna

Abstract Background Familial non-medullary thyroid carcinoma (FNMTC), mainly of papillary histotype (FPTC), is defined by the presence of the disease in two or more first-degree relatives in the absence of other known familial syndromes. With the increasing incidence of PTC in the recent years, the familial form of the disease has also become more common than previously reported and constitutes nearly 10% of all thyroid cancers. Many aspects of FNMTC are debated, concerning both clinical and genetic aspects. Several studies reported that, in comparison with sporadic PTCs, FPTCs are more aggressive at disease presentation, while other authors reported no differences in the clinical behavior of sporadic and familial PTCs. For this reason, recent guidelines do not recommend screening of family members of patients with diagnosis of differentiated thyroid cancer (DTC). FNMTC is described as a polygenic disorder associated with multiple low- to moderate-penetrance susceptibility genes and incomplete penetrance. At the moment, the genetic factors contributing to the development of FNMTC remain poorly understood, though many putative genes have been proposed in the recent years. Purpose Based on current literature and our experience with FNMTC, in this review, we critically discussed the most relevant controversies, including its definition, the genetic background and some clinical aspects as screening and treatment.


2015 ◽  
Vol 173 (3) ◽  
pp. 297-304 ◽  
Author(s):  
Rossella Elisei ◽  
Loredana Lorusso ◽  
Paolo Piaggi ◽  
Liborio Torregrossa ◽  
Giovanni Pellegrini ◽  
...  

BackgroundMedullary thyroid cancer (MTC) is capable of secreting several proteins, such as calcitonin (Ct), carcinoembryonic antigen (CEA), chromogranin and others. Recently, we observed an aggressive MTC with high levels of serum carbohydrate antigen 19.9 (Ca 19.9) and a rapid evolution to death.ObjectiveThe aim of this study was to evaluate whether high levels of serum Ca 19.9 could be a prognostic factor of death in patients with advanced MTC.Patients and methodsWe measured Ca 19.9, CEA and Ct in 100 advanced structural recurrent/persistent MTC patients and in 100 cured or biochemically affected MTC patients. Clinical and pathological data were also collected.ResultsSixteen percent of the patients with advanced MTC had high levels of Ca 19.9. The group with abnormal Ca 19.9 levels had significantly higher levels of CEA and Ct compared with the group with normal values of Ca 19.9 (P<0.0001 for both Ct and CEA). At variance, all 100 patients in the MTC control group showed normal levels of Ca 19.9. Moreover, among the advanced cases, the Ca 19.9-positive group showed a higher mortality rate than the group with normal levels. A logistic regression analysis demonstrated that an elevated level of Ca 19.9 is a predictor of mortality (OR=3.78,P=0.04), independent from Ct doubling time.ConclusionsThese results demonstrated that an elevated value of serum Ca 19.9 appears to be a predictive factor of poor prognosis in advanced MTC patients and identifies those cases with a higher risk of mortality in the short term.


2017 ◽  
Vol 177 (4) ◽  
pp. 309-317 ◽  
Author(s):  
Jaume Capdevila ◽  
José Manuel Trigo ◽  
Javier Aller ◽  
José Luís Manzano ◽  
Silvia García Adrián ◽  
...  

Background Axitinib, an antiangiogenic multikinase inhibitor (MKI), was evaluated in the compassionate use programme (CUP) in Spain (October 2012–November 2014). Subjects and Methods 47 patients with advanced radioactive iodine (RAI)-refractory differentiated thyroid cancer (DTC, n = 34) or medullary thyroid cancer (MTC, n = 13) with documented disease progression were treated with axitinib 5 mg b.i.d. The primary efficacy endpoint was objective response rate (ORR) by Response Evaluation Criteria In Solid Tumors (RECIST) v1.1. Progression-free survival (PFS) and adverse events (AEs) were secondary objectives. Regulatory authorities validated the CUP, and all patients signed informed consent form. Results Axitinib was administered as first-line therapy in 17 patients (36.2%), as second-line in 18 patients (38.3%) and as third/fourth-line in 12 patients (25.5%). With a median follow-up of 11.5 months (0–24.3), ORR was 27.7% (DTC: 29.4% and MTC: 23.1%) and median PFS was 8.1 months (95% CI: 4.1–12.2) (DTC: 7.4 months (95% CI: 3.1–11.8) and MTC: 9.4 months (95% CI: 4.8–13.9)). Better outcomes were reported with first-line axitinib, with an ORR of 53% and a median PFS of 13.6 months compared with 16.7% and 10.6 months as second-line treatment. Twelve (25.5%) patients required dose reduction to 3 mg b.i.d. All-grade AEs included asthenia (53.2%), diarrhoea (36.2%), hypertension (31.9%) and mucositis (29.8%); grade 3/4 AEs included anorexia (6.4%), diarrhoea (4.3%) and cardiac toxicity (4.3%). Conclusion Axitinib had a tolerable safety profile and clinically meaningful activity in refractory and progressive thyroid cancer regardless of histology as first-line therapy. To our knowledge, this is the first time that cross-resistance between MKIs is suggested in thyroid cancer, highlighting the importance of prospective sequential clinical studies.


2020 ◽  
Vol 107 (1) ◽  
pp. 120-133
Author(s):  
M Ramezani ◽  
M Mazani ◽  
M Tabatabaei ◽  
A Rahimian ◽  
E Mosaferi ◽  
...  

AbstractBackgroundThyroid cancer is the most common endocrine malignancy. Studies have observed an anti-cancer effect for vitamin D and found that polymorphisms of vitamin D receptors can influence the prevalence of various cancers. The present study investigated the serum level of vitamin D and FokI, BsmI and Tru9I polymorphisms of vitamin D receptors.MethodsForty patients with medullary thyroid cancer and 40 healthy controls were investigated. The genomic DNA of the subjects was extracted using saturated salt/proteinase K and investigated by PCR sequencing. Serum levels of vitamin D were evaluated by ELISA. The results were analyzed in SPSS and GraphPad Prism 5 software.ResultsThe genotypic and allelic frequencies of FokI and BsmI polymorphisms showed no significant differences between test and control groups. For Tru9I polymorphism, Tt genotype and t allelic frequency in the test group were significantly different from those of the control group. Also, we found Tt genotype and t allelic frequency to be significantly associated with medullary thyroid cancer (MTC) type and the agressiveness of the disease. The average serum vitamin D level was 23.32 ng/mL and 18.95 ng/mL for patients and controls, respectively, and the difference between the two groups was statistically significant. Moreover, we found high serum vitamin D level to be associated with t allelic frequency.ConclusionsUnexpectedly, the mean serum vitamin D level of the test group was significantly higher than that of the control group. Tru9I polymorphism was found to be significantly correlated with the prevalence of medullary thyroid carcinoma.


Sign in / Sign up

Export Citation Format

Share Document