UNC-45A is preferentially expressed in epithelial cells and binds to and co-localizes with interphase MTs

Juri Habicht, Ashley Mooneyham, Mihir Shetty, Xiaonan Zhang, Vijayalakshmi Shridhar, Boris Winterhoff, Ying Zhang, Jason Cepela, Timothy Starr, Emil Lou, Martina Bazzaro

Research output: Contribution to journalArticle

Abstract

UNC-45A is an ubiquitously expressed protein highly conserved throughout evolution. Most of what we currently know about UNC-45A pertains to its role as a regulator of the actomyosin system. However, emerging studies from both our and other laboratories support a role of UNC-45A outside of actomyosin regulation. This includes studies showing that UNC-45A: regulates gene transcription, co-localizes and biochemically co-fractionates with gamma tubulin and regulates centrosomal positioning, is found in the same subcellular fractions where MT-associated proteins are, and is a mitotic spindle-associated protein with MT-destabilizing activity in absence of the actomyosin system. Here, we extended our previous findings and show that UNC45A is variably expressed across a spectrum of cell lines with the highest level being found in HeLa cells and in ovarian cancer cells inherently paclitaxel-resistant. Furthermore, we show that UNC-45A is preferentially expressed in epithelial cells, localizes to mitotic spindles in clinical tumor specimens of cancer and co-localizes and co-fractionates with MTs in interphase cells independent of actin or myosin. In sum, we report alteration of UNC45A localization in the setting of chemotherapeutic treatment of cells with paclitaxel, and localization of UNC45A to MTs both in vitro and in vivo. These findings will be important to ongoing and future studies in the field that further identify the important role of UNC45A in cancer and other cellular processes.

Original languageEnglish (US)
Pages (from-to)1304-1313
Number of pages10
JournalCancer biology & therapy
Volume20
Issue number10
Early online dateJul 22 2019
DOIs
StatePublished - 2019

Fingerprint

Actomyosin
Interphase
Spindle Apparatus
Epithelial Cells
Paclitaxel
Neoplasms
Proteins
Subcellular Fractions
Myosins
Tubulin
HeLa Cells
Ovarian Neoplasms
Actins
Cell Line
Genes

Keywords

  • co-localization
  • interphase
  • microtubules
  • UNC-45A

PubMed: MeSH publication types

  • Journal Article

Cite this

UNC-45A is preferentially expressed in epithelial cells and binds to and co-localizes with interphase MTs. / Habicht, Juri; Mooneyham, Ashley; Shetty, Mihir; Zhang, Xiaonan; Shridhar, Vijayalakshmi; Winterhoff, Boris; Zhang, Ying; Cepela, Jason; Starr, Timothy; Lou, Emil; Bazzaro, Martina.

In: Cancer biology & therapy, Vol. 20, No. 10, 2019, p. 1304-1313.

Research output: Contribution to journalArticle

Habicht, Juri ; Mooneyham, Ashley ; Shetty, Mihir ; Zhang, Xiaonan ; Shridhar, Vijayalakshmi ; Winterhoff, Boris ; Zhang, Ying ; Cepela, Jason ; Starr, Timothy ; Lou, Emil ; Bazzaro, Martina. / UNC-45A is preferentially expressed in epithelial cells and binds to and co-localizes with interphase MTs. In: Cancer biology & therapy. 2019 ; Vol. 20, No. 10. pp. 1304-1313.
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AU - Shetty, Mihir

AU - Zhang, Xiaonan

AU - Shridhar, Vijayalakshmi

AU - Winterhoff, Boris

AU - Zhang, Ying

AU - Cepela, Jason

AU - Starr, Timothy

AU - Lou, Emil

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