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@ARTICLE{Heck:21893,
author = {Heck, A. and Tielker, D. and Ernst, J.F. and Freudl, R. and
Bott, M. and Oldiges, M. and Wiechert, W. and Pietruszka, J.
and Wilhelm, S. and Rosenau, F. and Drepper, T. and Jaeger,
K.-E.},
title = {{E}xpressionsoptimierung in {M}ikroorganismen},
journal = {Biospektrum},
volume = {18},
issn = {0947-0867},
address = {Heidelberg},
publisher = {Spektrum},
reportid = {PreJuSER-21893},
pages = {449 - 451},
year = {2012},
note = {Record converted from VDB: 12.11.2012},
abstract = {Vitamin D receptor (VDR) expression has been shown to be
upregulated in several tumors and is supposed to represent
an important endogenous response to tumor progression. To
investigate the role of the VDR gene and its influence on
25(OH)D(3) and 1,25(OH)(2)D(3) plasma levels in thyroid
carcinoma, we analyzed four VDR polymorphisms in patients
and healthy controls (HC).Patients with thyroid carcinoma (n
= 172) (n = 132 for papillary and n = 40 for follicular) and
HC (n = 321) were genotyped for the ApaI (rs7975232), TaqI
(rs731236), BsmI (rs1544410), and FokI (rs10735810)
polymorphisms within the VDR gene and correlated with
25(OH)D(3) and 1,25(OH)(2)D(3) plasma levels.The genotypes
AA of the ApaI (rs7975232) and FF of the FokI (rs10735810)
polymorphisms were significantly less frequent $(12.5\%$ vs.
$35.2\%$ and $25\%$ vs. $42.1\%,$ respectively, both
corrected p [p(c)] = 0.04) in patients with follicular
thyroid cancer (FTC) than in HC. Additionally, the
haplotypes, Ta $(57.5\%$ vs. $41.4\%;$ p(c) = 0.0207), af
$(24.6\%$ vs. $14.3\%;$ p(c) = 0.0116), Tab $(51.1\%$ vs.
$36.8\%;$ p(c) = 0.0495), and Tabf $(18.7\%$ vs. $13.6\%;$
p(c) = 0.0240) were more frequent, whereas the haplotypes AF
$(17.1\%$ vs. $37.2\%;$ p(c) = 0.0008), BF $(11.4\%$ vs.
$31.9\%;$ p(c) = 0.012), tF $(7.9\%$ vs. $25.5\%;$ p(c) =
0.0016), and tABF $(7.6\%$ vs. $23\%;$ p(c) = 0.0115) were
less frequent in the FTC patients compared to HC. Neither
genotype nor haplotype frequencies differed between patients
with papillary thyroid cancer (PTC) and HC. Further,
individuals with PTC and FTC had a significantly lower level
of circulating 1,25(OH)(2)D(3) compared to controls. In
contrast, no differences of the 25(OH)D(3) concentration
between patients and HC were observed. VDR polymorphisms
were not associated with 25(OH)D(3) and 1,25(OH)(2)D(3)
plasma levels.Lower circulating levels of 1,25(OH)(2)D(3)
are observed in patients with differentiated thyroid
carcinoma. Further, while the alleles AA and FF of the ApaI
(rs7975232) and FokI (rs10735810) VDR polymorphisms and the
haplotype tABF confer to protection from follicular
carcinoma, the haplotype Tabf appeared to be associated with
an increased FTC risk. Since this is the first report
associating VDR polymorphisms with thyroid carcinoma, these
findings need to be confirmed in studies with larger numbers
of patients.},
keywords = {Autoantibodies: immunology / Calcifediol: metabolism /
Calcitriol: metabolism / Carcinoma, Papillary, Follicular:
genetics / Carcinoma, Papillary, Follicular: pathology /
Cell Differentiation / Female / Genotype / Haplotypes /
Humans / Male / Neutrophil Infiltration / Polymorphism,
Genetic: genetics / Receptors, Calcitriol: genetics /
Thyroid Gland: immunology / Thyroid Neoplasms: genetics /
Thyroid Neoplasms: pathology / Vitamin D: physiology /
Autoantibodies (NLM Chemicals) / Receptors, Calcitriol (NLM
Chemicals) / Vitamin D (NLM Chemicals) / Calcifediol (NLM
Chemicals) / Calcitriol (NLM Chemicals)},
cin = {IBT-2},
ddc = {570},
cid = {I:(DE-Juel1)VDB56},
pnm = {Biotechnologie},
pid = {G:(DE-Juel1)FUEK410},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:19499989},
doi = {10.1007/s12268-012-0207-7},
url = {https://juser.fz-juelich.de/record/21893},
}