Role of chromatin disruption and histone acetylation in thyroid hormone receptor action: Implications in the regulation of HIV-1 LTR

S. C.V. Hsia, A. Tomita, K. Obata, B. Paul, D. Buchholz, Yun Bo Shi

Research output: Contribution to journalReview article

9 Citations (Scopus)

Abstract

Thyroid hormone (TH) affects a wide variety of biological processes, from development to physiological function of different cells and organs. Alterations in plasma TH concentrations lead to developmental abnormalities and pathological consequences. Earlier studies have observed that plasma TH levels vary in AIDS patients such that low levels of TH correlate with survival rate. Furthermore, studies on the regulation of the human immunodeficiency virus type 1 (HIV-1) have shown that TH receptor (TR) is capable of binding to two regions within the long terminal repeat (LTR), which controls the transcription of HIV-1 genome. The frog oocyte is an in vivo system that allows microinjected DNA to be chromatinized in a process mimicking the process that occurs in somatic cells. Studies in the frog oocyte have provided in vivo evidence on the role of chromatin remodelling in transcriptional regulation by TR and have shown that TR utilizes similar mechanisms in the regulation of the HIV-1 LTR. That is, TR binds to LTR in chromatin in vivo and represses the LTR in the absence of TH by recruiting corepressor complexes containing histone deacetylases, and upon TH binding, TR causes chromatin remodeling and LTR activation.

Original languageEnglish
Pages (from-to)323-331
Number of pages9
JournalHistology and Histopathology
Volume18
Issue number1
Publication statusPublished - 01-01-2003
Externally publishedYes

Fingerprint

HIV Long Terminal Repeat
Thyroid Hormone Receptors
Acetylation
Thyroid Hormones
Histones
Chromatin
HIV-1
Terminal Repeat Sequences
Chromatin Assembly and Disassembly
Anura
Oocytes
Biological Phenomena
Co-Repressor Proteins
Histone Deacetylases
Acquired Immunodeficiency Syndrome
Survival Rate
Genome
DNA

All Science Journal Classification (ASJC) codes

  • Pathology and Forensic Medicine
  • Histology

Cite this

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Role of chromatin disruption and histone acetylation in thyroid hormone receptor action : Implications in the regulation of HIV-1 LTR. / Hsia, S. C.V.; Tomita, A.; Obata, K.; Paul, B.; Buchholz, D.; Shi, Yun Bo.

In: Histology and Histopathology, Vol. 18, No. 1, 01.01.2003, p. 323-331.

Research output: Contribution to journalReview article

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