Down-regulation of an inhibitor of cell growth, transmembrane protein 34 (TMEM34), in anaplastic thyroid cancer

Ansaplastic thyroid cancer (ATC) is one of the most lethal malignancies, but the carcinogenic mechanism of ATC has not been clarified. Recently, we performed a cDNA microarray analysis and identified transmembrane protein 34 (TMEM34) that down-regulated in anaplastic thyroid cancer cell lines (ACL)s...

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Veröffentlicht in:Journal of cancer research and clinical oncology 2007-04, Vol.133 (4), p.213-218
Hauptverfasser: AKAISHI, J, ONDA, M, OKAMOTO, J, MIYAMOTO, S, NAGAHAMA, M, ITO, K, YOSHIDA, A, SHIMIZU, K
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container_end_page 218
container_issue 4
container_start_page 213
container_title Journal of cancer research and clinical oncology
container_volume 133
creator AKAISHI, J
ONDA, M
OKAMOTO, J
MIYAMOTO, S
NAGAHAMA, M
ITO, K
YOSHIDA, A
SHIMIZU, K
description Ansaplastic thyroid cancer (ATC) is one of the most lethal malignancies, but the carcinogenic mechanism of ATC has not been clarified. Recently, we performed a cDNA microarray analysis and identified transmembrane protein 34 (TMEM34) that down-regulated in anaplastic thyroid cancer cell lines (ACL)s as compared to normal thyroid tissues. To investigate the role of TMEM34 in ATC carcinogenesis, we examined expression levels of TMEM34 in ACLs as well as differentiated thyroid cancers (DTC)s and normal human tissues. To explore the effect of TMEM34 in ATC development, cell-growth assays with KTA2 cells were performed. Expression of TMEM34 was down-regulated in all 11 ACLs, as compared to either normal thyroid tissues or cell lines derived from papillary or follicular thyroid cancers. TMEM34 was expressed ubiquitously in normal human tissues tested. Transfection of TMEM34 into KTA2 cells led to inhibition of cell growth. Our findings suggest that TMEM34 might be a tumor suppressor gene, associated with the development of ATC from DTC.
doi_str_mv 10.1007/s00432-006-0159-8
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Recently, we performed a cDNA microarray analysis and identified transmembrane protein 34 (TMEM34) that down-regulated in anaplastic thyroid cancer cell lines (ACL)s as compared to normal thyroid tissues. To investigate the role of TMEM34 in ATC carcinogenesis, we examined expression levels of TMEM34 in ACLs as well as differentiated thyroid cancers (DTC)s and normal human tissues. To explore the effect of TMEM34 in ATC development, cell-growth assays with KTA2 cells were performed. Expression of TMEM34 was down-regulated in all 11 ACLs, as compared to either normal thyroid tissues or cell lines derived from papillary or follicular thyroid cancers. TMEM34 was expressed ubiquitously in normal human tissues tested. Transfection of TMEM34 into KTA2 cells led to inhibition of cell growth. 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Recently, we performed a cDNA microarray analysis and identified transmembrane protein 34 (TMEM34) that down-regulated in anaplastic thyroid cancer cell lines (ACL)s as compared to normal thyroid tissues. To investigate the role of TMEM34 in ATC carcinogenesis, we examined expression levels of TMEM34 in ACLs as well as differentiated thyroid cancers (DTC)s and normal human tissues. To explore the effect of TMEM34 in ATC development, cell-growth assays with KTA2 cells were performed. Expression of TMEM34 was down-regulated in all 11 ACLs, as compared to either normal thyroid tissues or cell lines derived from papillary or follicular thyroid cancers. TMEM34 was expressed ubiquitously in normal human tissues tested. Transfection of TMEM34 into KTA2 cells led to inhibition of cell growth. 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subjects Antineoplastic agents
Biological and medical sciences
Carcinoma - genetics
Carcinoma - metabolism
Carcinoma - pathology
Cell growth
Cell Growth Processes - genetics
Cell Line, Tumor
Cloning, Molecular
DNA Primers
Down-Regulation
Endocrinopathies
Gene expression
Gene Expression Profiling - methods
Gene Expression Regulation, Neoplastic
Genes, Tumor Suppressor
Humans
Malignant tumors
Medical sciences
Membrane Proteins - chemistry
Membrane Proteins - metabolism
Non tumoral diseases. Target tissue resistance. Benign neoplasms
Oligonucleotide Array Sequence Analysis - methods
Pharmacology. Drug treatments
Proteins
Reverse Transcriptase Polymerase Chain Reaction
RNA, Neoplasm - genetics
RNA, Neoplasm - isolation & purification
Thyroid cancer
Thyroid diseases
Thyroid Neoplasms - genetics
Thyroid Neoplasms - metabolism
Thyroid Neoplasms - pathology
Thyroid. Thyroid axis (diseases)
Transfection
Tumor Suppressor Proteins - chemistry
Tumor Suppressor Proteins - metabolism
title Down-regulation of an inhibitor of cell growth, transmembrane protein 34 (TMEM34), in anaplastic thyroid cancer
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