Expression of a retinoid-inducible tumor suppressor, Tazarotene-inducible gene-3, is decreased in psoriasis and skin cancer.

نویسندگان

  • M Duvic
  • B Helekar
  • C Schulz
  • M Cho
  • D DiSepio
  • C Hager
  • D DiMao
  • P Hazarika
  • B Jackson
  • J Breuer-McHam
  • J Young
  • G Clayman
  • S M Lippman
  • R A Chandraratna
  • N A Robinson
  • A Deucher
  • R L Eckert
  • S Nagpal
چکیده

Tazarotene-induced gene-3 (TIG-3), isolated from human keratinocytes treated with the retinoic acid receptor-selective retinoid Tazarotene, is homologous to H-rev, a class II tumor suppressor. TIG-3 gene localized to chromosome 11q23, a site of loss of heterozygosity in several malignancies. Retinoids influence epidermal differentiation and are used to treat and prevent skin cancer. Therefore, we studied TIG-3 mRNA expression in psoriasis and in basal and SCCs by in situ hybridization and a quantitative QT-RT-PCR assay. Psoriasis lesions had significantly lower staining (median, 3) than paired normal control skin (median, 4; P = 0.012). TIG-3 mRNA was significantly higher in normal control skin (P = 0.001), in paired adjacent skin (median, 3; P = 0.007), and in overlying epidermis (median, 3.0; P = 0.0001) than in 21 SCC specimens as a group (median, 1.5).

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Identification and characterization of a retinoid-induced class II tumor suppressorygrowth regulatory gene

Retinoids, synthetic and natural analogs of retinoic acid, exhibit potent growth inhibitory and cell differentiation activities that account for their beneficial effects in treating hyperproliferative diseases such as psoriasis, actinic keratosis, and certain neoplasias. Tazarotene is a synthetic retinoid that is used in the clinic for the treatment of psoriasis. To better understand the mechan...

متن کامل

Hypermethylation and silencing of the putative tumor suppressor Tazarotene-induced gene 1 in human cancers.

A variety of tumor suppressor genes are down-regulated by hypermethylation during carcinogenesis. Using methylated CpG amplification-representation difference analysis, we identified a DNA fragment corresponding to the Tazarotene-induced gene 1 (TIG1) promoter-associated CpG island as one of the genes hypermethylated in the leukemia cell line K562. Because TIG1 has been proposed to act as a tum...

متن کامل

Blockade of Hypoxia: The Impact on Tumor Growth in an Experimental Tumor Model

Background: Tumor microenvironment is an active factor participating in immunoregulation, thereby preventing immunosurveillance and limiting the efficacy of anticancer therapies. Hypoxia as a major characteristic of solid tumors causes the expression of Hypoxia-Inducible Factor-1α (HIF-1α). This is a transcription factor that mediates hypoxic responses of tumor cells and involves in the express...

متن کامل

Tig3 - an Important Regulator of Keratinocyte Proliferation and Survival

Tazarotene-induced gene 3 (TIG3) is a tumor suppressor protein. In normal human epidermis, TIG3 is present in the differentiated, suprabasal layers, and it regulates terminal differentiation. TIG3 level is reduced in hyperproliferative diseases, including psoriasis and skin cancer, suggesting that loss of TIG3 is associated with enhanced cell proliferation. Moreover, transient expression of TIG...

متن کامل

بررسی بیان ژن مهارکننده توموری TUSC1 (Tumor suppressor candidate gene 1) در نمونه‌های بافتی سرطان پستان و همراهی آن با میزان تومورزایی

Introduction: Breast cancer remains the prominent cause of mortality in women. Several biomarkers are used to evaluation the response and targeting to therapy. Tumor suppressor candidate 1 (TUSC1) gene was newly identified as a probable tumor suppressor in human cancers. Nevertheless, the expression and potential function of TUSC1 in breast cancer stay undecided. Therefore, this study aimed the...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Clinical cancer research : an official journal of the American Association for Cancer Research

دوره 6 8  شماره 

صفحات  -

تاریخ انتشار 2000