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≥98% (HPLC), powder

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Empirical Formula (Hill Notation):
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≥98% (HPLC)



optical activity

[α]/D -250 to -310°, c = 0.5 in methanol




DMSO: >10 mg/mL

storage temp.


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General description

RG108, a non-nucleoside analog is also called [2-(1,3-dioxoisoindolin-2-yl)-3-(1H-indol-3-yl) propanoic acid.


RG108 has been used:
  • in reprogramming and increasing cell plasticity of primary multipotent mesenchymal stromal cells (MMSC)
  • as an inhibitor of DNA methyltransferase (DNMTi) in human retinal pigment epithelial ARPE-19 cells
  • as a DNA methyltransferase inhibitor in C33A2 cells to test its effect on papillomavirus late gene expression (HPV16)

Biochem/physiol Actions

RG108 is a DNA methyltransferase (DMNT) inhibitor. It reactivates tumor suppressor gene expression (p16, SFRP1, secreted frizzled related protein-1, and TIMP-3) in tumor cells by DNA demethylation. RG108 also inhibits human tumor cell line (HCT116, NALM-6) proliferation and increased doubling time in culture.
RG108 is less cytotoxic compared to azacytidine (5-Aza-dCR). It mediates radiosensitivity in esophageal cancer cells (EC). RG108 is a potent epigenetic modulator and a demethylating agent. It elicits non-cytotoxic functionality and may be useful in stem cell therapies based on human bone marrow-derived mesenchymal stem cells (hBMSCs). It interacts with DNA methyltransferase 1 at the catalytic domain region.

Features and Benefits

This compound is a featured product for Gene Regulation research. Click here to discover more featured Gene Regulation products. Learn more about bioactive small molecules for other areas of research at

Storage Class

11 - Combustible Solids




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Not applicable

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Qing Wang et al.
Journal of cellular biochemistry, 119(2), 1501-1510 (2017-08-05)
DNA methylation plays a crucial role in lots of biological processes and cancer. 5-azacytidine (5-AC), a DNA methylation inhibitor, has been used as a potential chemotherapeutic agent for cancer. In this study, we used 5-AC treatment to investigate whether DNA
Yao Ou et al.
Oncology reports, 39(3), 993-1002 (2018-01-13)
Esophageal cancer (EC) is the eighth most common highly aggressive cancer worldwide. The purpose of this study was to investigate the effect of the DNA methyltransferase inhibitor RG108 on the radiosensitivity of EC cells. MTT and clonogenic assays were performed
Paulina Tokarz et al.
European journal of pharmacology, 776, 167-175 (2016-02-24)
Epigenetic modifications influence DNA damage response (DDR). In this study we explored the role of DNA methylation and histone acetylation in DDR in cells challenged with acute or chronic oxidative stress. We used retinal pigment epithelial cells (ARPE-19), which natively
German Todorov et al.
Scientific reports, 9(1), 8741-8741 (2019-06-21)
Mental health disorders are manifested in families, yet cannot be fully explained by classical Mendelian genetics. Changes in gene expression via epigenetics present a plausible mechanism. Anxiety often leads to avoidant behaviors which upon repetition may become habitual, maladaptive and
Lucia Bialesova et al.
Scientific reports, 7(1), 10152-10152 (2017-09-02)
Increased adipocyte lipolysis links obesity to insulin resistance. The lipid droplet coating-protein Perilipin participates in regulation of lipolysis and is implicated in obesity. In the present study we investigate epigenetic regulation of the PLIN1 gene by correlating PLIN1 CpG methylation


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