Molecular Biology Reports

, Volume 46, Issue 2, pp 2299–2305 | Cite as

Sirt1 antisense transcript is down-regulated in human tumors

  • Neda Mokhberian
  • Seyed Mahmoud Hashemi
  • Vahid Jajarmi
  • Mohamad Eftekhary
  • Ameneh Koochaki
  • Hossein GhanbarianEmail author
Original Article


Natural antisense transcripts (NATs) have recently been associated with the development of human cancers. Recent studies have shown that a natural antisense transcript (NAT) is present in Sirt1 gene which encodes a NAD-dependent deacetylase. Interestingly, expression of Sirt1 mRNA changes during development and progression of human cancers. However, it remains unclear to what extent Sirt1 antisense transcript (AS) may contribute to changes in the expression of Sirt1 mRNA. To determine this, we used quantitative measurement of RNA to reveal relationship between Sirt1 mRNA and Sirt1-AS across human cancer tissues, cell lines and stem cells. While Sirt1 mRNA level was increased in cancer cell lines and cancer tissues, the expression level of Sirt1-AS was lower in cancers compared to controls. This inverse correlation was observed in the expression of Sirt1 sense and antisense transcripts in normal and cancer tissues suggesting a functional role for Sirt1-AS in regulation of Sirt1 mRNA.


Sirt1 Natural antisense transcript Human tumor Cancer cell line Stem cell 



We would like to thank the Cellular and Molecular Biology Research Center, Tehran, Iran for their kind cooperation in providing materials and equipment.


This work was supported by research grants of Iran National Science Foundation (INSF), Tehran (96008781), and research grants of Shahid Beheshti University of Medical Sciences, Tehran, Iran (15769). We would like to thank the Cellular and Molecular Biology Research Center, Tehran, Iran for their kind cooperation in providing materials and equipment.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest. The manuscript contains only original unpublished work and is not being submitted for publication elsewhere.

Ethical approval

All procedures performed in the study were in accordance with the ethical standards of the Ethics Committee at the Iran National Science Foundation (INSF) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

Informed consent

Informed consent was obtained from all individual participants.

Supplementary material

11033_2019_4687_MOESM1_ESM.docx (14 kb)
Supplementary material 1 (DOCX 13 KB)


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Copyright information

© Springer Nature B.V. 2019

Authors and Affiliations

  • Neda Mokhberian
    • 1
  • Seyed Mahmoud Hashemi
    • 2
    • 4
  • Vahid Jajarmi
    • 3
  • Mohamad Eftekhary
    • 1
  • Ameneh Koochaki
    • 3
  • Hossein Ghanbarian
    • 1
    • 3
    • 4
    Email author
  1. 1.Department of Biotechnology, School of Advanced Technologies in MedicineShahid Beheshti University of Medical SciencesTehranIran
  2. 2.Department of Immunology, School of MedicineShahid Beheshti University of Medical SciencesTehranIran
  3. 3.Cellular and Molecular Biology Research CenterShahid Beheshti University of Medical SciencesTehranIran
  4. 4.Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in MedicineShahid Beheshti University of Medical SciencesTehranIran

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