scholarly journals Increased risk of testis failure in testicular germ cell tumor survivors undergoing radiotherapy

Oncotarget ◽  
2017 ◽  
Vol 9 (3) ◽  
pp. 3060-3068 ◽  
Author(s):  
Marco Ghezzi ◽  
Luca De Toni ◽  
Pierfrancesco Palego ◽  
Massimo Menegazzo ◽  
Elisa Faggian ◽  
...  
Keyword(s):  
Germ Cell ◽  
Germ Cell Tumor ◽  
Testicular Germ Cell Tumor ◽  
Cell Tumor ◽  
Testicular Germ Cell ◽  
Increased Risk

scholarly journals Association of testicular germ cell tumor with polymorphisms in estrogen receptor and steroid metabolism genes

2010 ◽  
Vol 17 (1) ◽  
pp. 17-25 ◽  
Author(s):  
Alberto Ferlin ◽  
Francesco Ganz ◽  
Manuel Pengo ◽  
Riccardo Selice ◽  
Anna Chiara Frigo ◽  
...  
Keyword(s):  
Estrogen Receptor ◽  
Germ Cell ◽  
Germ Cell Tumor ◽  
Cancer Susceptibility ◽  
Current Knowledge ◽  
Testicular Germ Cell Tumor ◽  
Cell Tumor ◽  
Hormone Metabolism ◽  
Testicular Germ Cell ◽  
Increased Risk

It is generally assumed that the development of testicular germ cell tumor (TGCT) is under endocrine control. In particular, unbalanced androgen/estrogen levels and/or activity are believed to represent the key events for TGCT development and progression. Furthermore, recent evidence has suggested a strong genetic component for TGCT. In this study, we analyzed whether a genetic variation in estrogen receptor (ESR) genes and steroid hormone metabolism genes is associated with TGCT. We genotyped for 17 polymorphic markers in 11 genes in 234 TGCT cases and 218 controls: ESR (ESR1 and ESR2); CYP19A1 (aromatase); 17β-hydroxysteroid dehydrogenase types 1 and 4 (HSD17B1 and HSD17B4) dehydrogenases that convert potent androgens and estrogens to weak hormones; cytochrome P450 hydroxylating enzymes CYP1A1, CYP1A2, and CYP1B1; and the metabolic enzymes COMT, SULT1A1, and SULT1E1. We observed a significant association of rs11205 in HSD17B4 with TGCT. TGCT risk was increased twofold per copy of the minor A allele at this locus (odds ratios (OR)=2.273, 95% confidence interval (CI)=1.737–2.973). Homozygous carriage of the minor A allele was associated with an over fourfold increased risk of TGCT (OR=4.561, 95% CI=2.615–7.955) compared with homozygous carriage of the major G allele. The risk was increased both for seminoma (OR=5.327, 95% CI=2.857–9.931) and for nonseminoma (OR=3.222, 95% CI=1.471–7.059). We found for the first time an association of polymorphisms in HSD17B4 gene with TGCT. Our findings expand the current knowledge on the role of genetic contribution in testicular cancer susceptibility, and support the hypothesis that variations in hormone metabolism genes might change the hormonal environment implicated in testicular carcinogenesis.

Diagnostic radiation and testicular germ cell tumor risk.

2018 ◽  
Vol 36 (6_suppl) ◽  
pp. 556-556
Author(s):  
Kevin Thomas Nead ◽  
Nandita Mitra ◽  
Benita Weathers ◽  
Louisa T Pyle ◽  
Katherine L. Nathanson ◽  
...  
Keyword(s):  
Germ Cell ◽  
Germ Cell Tumor ◽  
Testicular Germ Cell Tumor ◽  
Cell Tumor ◽  
The Body ◽  
Testicular Germ Cell ◽  
X Ray ◽  
Increased Risk ◽  
Diagnostic Radiation ◽  
History Of

556 Background: Both incidence of testicular germ cell tumor (TGCT) and use of diagnostic radiation have increased in recent decades. In a quarter of diagnostic scans in children, direct and indirect radiation dose to the testes exceeds 20 mSv, which surpasses thresholds associated with malignancy risk (~5 mSv). Here, we examine the association between exposure to diagnostic radiation and TGCT risk in a case-control study. Methods: Cases were enrolled in a hybrid hospital- and population-based setting and controls were recruited from the community. Participants reported on exposures to x-ray/CT below the waist and lower GI series, and we derived a combined variable for any exposure. After imputation to infer missing data, we compared baseline characteristics and used multivariable logistic regression adjusting for age and race to determine the risk of developing TGCT according to number of exposures and age at first exposure. Results: As expected, cases (n = 1088) were more likely than controls (n = 1458) to be white, have a family history of TGCT, and have a history of cryptorchidism (p < 0.05). There was an increased risk of TGCT with a greater number of exposures for both x-ray/CT (ptrend= 0.002) and the combined diagnostic radiation variable (ptrend< 0.001). Compared to those without any exposure, risk was greatest among those reporting ≥6 exposures for x-ray or CT (OR, 9.6; 95% CI, 4.6-19.9; p < 0.001) and the combined variable (OR, 5.8; 95% CI, 3.2-10.4; p < 0.001), after adjusting for age at first exposure. Early first exposure before eleven years of age increased risk of TGCT for x-ray/CT (OR, 2.36; 95% CI, 1.17-4.77) and combined radiation exposure (OR, 1.96; 95% CI, 1.05-3.67) compared to later first exposure after seventeen years of age, adjusting for total exposures. Analyses limited to observed data only yielded similar results. Conclusions: Exposure to diagnostic radiation below the waist, particularly among younger individuals, may increase TGCT risk. These results should be validated. As the testes are present outside the body and rarely examined using diagnostic radiation, a unique opportunity for shielding exists. Efforts to reduce testicular dose and optimize shielding practices should be prioritized.

Testicular germ cell tumor with pineal metastases

Neurosurgery ◽  
1990 ◽  
pp. 688 ◽  
Author(s):  
B Delahunt ◽  
H H Teoh ◽  
V Balakrishnan ◽  
J N Nacey ◽  
S P Clark
Keyword(s):  
Germ Cell ◽  
Germ Cell Tumor ◽  
Testicular Germ Cell Tumor ◽  
Cell Tumor ◽  
Testicular Germ Cell

666 A NOVEL RISK STRATIFICATION SYSTEM FOR CHEMOTHERAPY FAILURE IN TESTICULAR GERM CELL TUMOR

2012 ◽  
Vol 187 (4S) ◽  
Author(s):  
Jessica Lubahn ◽  
Nicholas Cost ◽  
Mehrad Adibi ◽  
Adam Romman ◽  
Ganesh Raj ◽  
...  
Keyword(s):  
Risk Stratification ◽  
Germ Cell ◽  
Germ Cell Tumor ◽  
Testicular Germ Cell Tumor ◽  
Cell Tumor ◽  
Testicular Germ Cell ◽  
Stratification System ◽  
Risk Stratification System

scholarly journals A second independent locus within DMRT1 is associated with testicular germ cell tumor susceptibility

2011 ◽  
Vol 20 (15) ◽  
pp. 3109-3117 ◽  
Author(s):  
Peter A. Kanetsky ◽  
Nandita Mitra ◽  
Saran Vardhanabhuti ◽  
David J. Vaughn ◽  
Mingyao Li ◽  
...  
Keyword(s):  
Germ Cell ◽  
Germ Cell Tumor ◽  
Testicular Germ Cell Tumor ◽  
Cell Tumor ◽  
Testicular Germ Cell ◽  
Tumor Susceptibility ◽  
Independent Locus

scholarly journals The overexpression of SOX2 affects the migration of human teratocarcinoma cell line NT2/D1

2015 ◽  
Vol 87 (1) ◽  
pp. 389-404 ◽  
Author(s):  
DANIJELA DRAKULIC ◽  
JELENA MARJANOVIC VICENTIC ◽  
MARIJA SCHWIRTLICH ◽  
JELENA TOSIC ◽  
ALEKSANDAR KRSTIC ◽  
...  
Keyword(s):  
Stem Cells ◽  
Tumor Suppressor ◽  
Cancer Stem Cells ◽  
Germ Cell ◽  
Germ Cell Tumor ◽  
Testicular Germ Cell Tumor ◽  
Cell Tumor ◽  
Testicular Germ Cell ◽  
Teratocarcinoma Cell ◽  
Altered Expression

The altered expression of the SOX2 transcription factor is associated with oncogenic or tumor suppressor functions in human cancers. This factor regulates the migration and invasion of different cancer cells. In this study we investigated the effect of constitutive SOX2 overexpression on the migration and adhesion capacity of embryonal teratocarcinoma NT2/D1 cells derived from a metastasis of a human testicular germ cell tumor. We detected that increased SOX2 expression changed the speed, mode and path of cell migration, but not the adhesion ability of NT2/D1 cells. Additionally, we demonstrated that SOX2 overexpression increased the expression of the tumor suppressor protein p53 and the HDM2 oncogene. Our results contribute to the better understanding of the effect of SOX2 on the behavior of tumor cells originating from a human testicular germ cell tumor. Considering that NT2/D1 cells resemble cancer stem cells in many features, our results could contribute to the elucidation of the role of SOX2 in cancer stem cells behavior and the process of metastasis.

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