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The Radiation-Induced Cell-Death Signaling Pathway is Activated by Concurrent Use of Cisplatin in Sequential Biopsy Specimens from Patients with Cervical Cancer.

The Radiation-Induced Cell-Death Signaling Pathway is Activated by Concurrent Use of Cisplatin in Sequential Biopsy Specimens from Patients with Cervical Cancer. Research Abstract Details 

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  • The Radiation-Induced Cell-Death Signaling Pathway is Activated by Concurrent Use of Cisplatin in Sequential Biopsy Specimens from Patients with Cervical Cancer. Abstract Text:

    mayumi iwakawaMayumi Iwakawa,tatsuya ohnoTatsuya Ohno,kaori imadomeKaori Imadome,miyako nakawatariMiyako Nakawatari,ken-ichi ishikawaKen-Ichi Ishikawa,minako sakaiMinako Sakai,shingo katohShingo Katoh,hitoshi ishikawaHitoshi Ishikawa,hirohiko tsujiiHirohiko Tsujii,takashi imaiTakashi Imai,mayumi iwakawaMayumi Iwakawa,tatsuya ohnoTatsuya Ohno,kaori imadomeKaori Imadome,miyako nakawatariMiyako Nakawatari,ken-ichi ishikawaKen-ichi Ishikawa,minako sakaiMinako Sakai,shingo katohShingo Katoh,hitoshi ishikawaHitoshi Ishikawa,hirohiko tsujiiHirohiko Tsujii,takashi imaiTakashi Imai,

    Objective: To identify changes in gene expression related to the concurrent use of platinum compounds with radiotherapy, in the treatment of cervical cancer. Patients and Methods: Biopsy specimens were obtained from 39 patients with squamous cell carcinoma of the uterine cervix, before and during fractionated radiotherapy. Twenty patients were treated with radiotherapy (RT) alone, while 19 received the same radiotherapy plus concomitant chemotherapy with cisplatin (CRT). Changes in gene expression induced by treatment were investigated using single-color oligo-microarrays consisting of 44K human sequences. Paraffin-embedded samples were used to examine apoptosis and the expression of protein by treatment-responsive genes. Changes in mRNA expression were assessed for these genes by real-time reverse transcriptase-polymerase chain reaction. Aberrant genomic change (detected using microarray-based comparative genomic hybridization), human papillomavirus infection, and p53 status were also evaluated. Results: The expression of CDKN1A, BAX, TNFSF8, and RRM2B was consistently upregulated by CRT (9 Gy with a single administration of cisplatin). Similar expression changes were induced by RT (9 Gy) alone, although the variability between tumors was greater. Apoptotic cells were significantly increased in both groups. CRT significantly increased the numbers of cases with diffusely distributed CDKN1A-positive cells. Genetic losses at 2q33-ter and gains of 3q26-ter were detected in the samples with high frequency; 60% were positive for human papillomavirus DNA; and three tumors had deletions/mutations of the p53 gene. There was no difference in the incidence of these genomic changes between the groups, and no association was found with the changes in expression of CDKN1A, BAX, TNFSF8 or RRM2B. Conclusions: Using biopsy samples from pretreatment and midtreatment cervical tumors, we identified therapy-induced genes related to the cell death signaling pathway. CRT produced a homogenous pattern of changes in expression of known radiation-responsive genes.

    The Radiation-Induced Cell-Death Signaling Pathway is Activated by Concurrent Use of Cisplatin in Sequential Biopsy Specimens from Patients with Cervical Cancer. Publishing Authors By Initials

    m iwakawaM Iwakawa,t ohnoT Ohno,k imadomeK Imadome,m nakawatariM Nakawatari,k ishikawaK Ishikawa,m sakaiM Sakai,s katohS Katoh,h ishikawaH Ishikawa,h tsujiiH Tsujii,t imaiT Imai,m iwakawaM Iwakawa,t ohnoT Ohno,k imadomeK Imadome,m nakawatariM Nakawatari,k ishikawaK Ishikawa,m sakaiM Sakai,s katohS Katoh,h ishikawaH Ishikawa,h tsujiiH Tsujii,t imaiT Imai,

    For similar abstracts research abstracts see: abstracts research

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    The Radiation-Induced Cell-Death Signaling Pathway is Activated by Concurrent Use of Cisplatin in Sequential Biopsy Specimens from Patients with Cervical Cancer. Journal Published:

    PUBLICATION TYPE: Journal Article

    Journal: Cancer biology & therapy

    VOLUME: 6

    Page Numbers: 905-11

    Journal Abbreviation: Cancer Biol. Ther.

    ISSN: 1538-4047

    DAY: 5

    MONTH: 03

    YEAR: 2007

    The Radiation-Induced Cell-Death Signaling Pathway is Activated by Concurrent Use of Cisplatin in Sequential Biopsy Specimens from Patients with Cervical Cancer. Information

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    LANGUAGE: eng

    NlmUniqueID: 101137842

    The Radiation-Induced Cell-Death Signaling Pathway is Activated by Concurrent Use of Cisplatin in Sequential Biopsy Specimens from Patients with Cervical Cancer. Keywords Mesh Terms:

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    Chemical & Substance for Abstract: The Radiation-Induced Cell-Death Signaling Pathway is Activated by Concurrent Use of Cisplatin in Sequential Biopsy Specimens from Patients with Cervical Cancer. Information

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    Grant and Affiliation Information for The Radiation-Induced Cell-Death Signaling Pathway is Activated by Concurrent Use of Cisplatin in Sequential Biopsy Specimens from Patients with Cervical Cancer.

    AFFILIATION: RadGenomics Research Group, Research Center for Charged Particle Therapy, National Institute of Radiological Sciences, Chiba, Japan.

    Country: United States

    United States Research PublicationUnited States Research Publication

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    MEDLINETA: Cancer Biol Ther

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    The Radiation-Induced Cell-Death Signaling Pathway is Activated by Concurrent Use of Cisplatin in Sequential Biopsy Specimens from Patients with Cervical Cancer Related Publications

     

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