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Chemical Structure| 789-61-7 Chemical Structure| 789-61-7

Structure of 6-Thio-2'-Deoxyguanosine
CAS No.: 789-61-7

Chemical Structure| 789-61-7

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6-Thio-dG is a nucleoside analog and telomerase substrate.

Synonyms: 6-thio-dG; β-TGdR; Beta-TGdR

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Product Details of 6-Thio-2'-Deoxyguanosine

CAS No. :789-61-7
Formula : C10H13N5O3S
M.W : 283.31
SMILES Code : S=C1NC(N)=NC2=C1N=CN2[C@@H]3O[C@H](CO)[C@@H](O)C3
Synonyms :
6-thio-dG; β-TGdR; Beta-TGdR
MDL No. :MFCD00672275
InChI Key :SCVJRXQHFJXZFZ-KVQBGUIXSA-N
Pubchem ID :3000603

Safety of 6-Thio-2'-Deoxyguanosine

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H315-H319-H335
Precautionary Statements:P261-P280-P301+P312-P302+P352-P305+P351+P338

Related Pathways of 6-Thio-2'-Deoxyguanosine

DNA

Isoform Comparison

Biological Activity

In Vitro:

Cell Line
Concentration Treated Time Description References
MC38 cells 0.5 μM 13 days Evaluate the effect of 6-thio-dG on colony formation of MC38 cells PMC7494563
H1693 NSCLC cells 10 μM 4-7 days Overexpression of SLC43A3 in H1693 cells increased sensitivity to 6-thio-dG. PMC7056593
HCT116 cells 0.73 μM (IC50) 5 days Determine the IC50 of 6-thio-dG in HCT116 cells PMC7494563
MC38 cells 370 nM 5 days Determine the IC50 of 6-thio-dG in MC38 cells PMC7494563
H1299 parental and resistant cells 1, 3, 10 μM 1 week Tested sensitivity in paclitaxel/carboplatin-resistant cells, both remained sensitive to 6-thio-dG PMC6037876
HCEC1 human colonic epithelial cells 0.5–10 µM 1 week To evaluate the effect of 6-thio-dG on normal cells, results showed that HCEC1 cells were largely resistant to 6-thio-dG. PMC4293221
BJ human fibroblasts 0.5–10 µM 1 week To evaluate the effect of 6-thio-dG on normal cells, results showed that BJ fibroblasts were largely resistant to 6-thio-dG. PMC4293221
A549 lung cancer cells 0.5–10 µM 1 week To evaluate the effect of 6-thio-dG on cell growth, results showed that 6-thio-dG caused rapid cell death in the majority of A549 cells. PMC4293221
HCT116 colon cancer cells 0.5–10 µM 1 week To evaluate the effect of 6-thio-dG on cell growth, results showed that 6-thio-dG caused rapid cell death in the majority of HCT116 cells. PMC4293221
KLN205 mouse lung cancer cells 125, 250, 500 nM 11-13 days Verified sensitivity to 6-thio-dG in mouse lung cancer cells PMC6037876
Neurosphere-cultured glioma cell lines 5 μM 12 days To evaluate the therapeutic efficacy of THIO in neurosphere-cultured glioma cell lines, results showed that THIO inhibited neurosphere growth by inducing apoptotic cell death. PMC8678347
H2087 NSCLC cells 1 μM 3 days Verified rapid effect on cell growth, no telomerase inhibition but significant impact on cell viability PMC6037876
Non-small cell lung cancer (NSCLC) cell lines 1.55 μM (IC50) 4 days To evaluate the sensitivity of NSCLC cell lines to 6-thio-dG, finding 73/77 cell lines were sensitive and 4/77 were resistant. PMC7056593
TMZ-resistant glioma cell lines 5 μM 4 days To evaluate the therapeutic efficacy of THIO in TMZ-resistant glioma cell lines, results showed that THIO as a monotherapy was effective in TMZ-resistant cell lines. PMC8678347
Human and mouse glioma cell lines 0.01 μM to 100 μM 4 days To evaluate the therapeutic efficacy of THIO in glioma cell lines, results showed that THIO was effective in the majority of glioma cell lines with no obvious toxicity against normal astrocytes. PMC8678347
HCC4017 NSCLC cells 10 μM 4-7 days Knockdown of SLC43A3 by siRNA resulted in resistance to 6-thio-dG in HCC4017 cells. PMC7056593
Non-transformed melanocytes and fibroblasts 1 µM 7 days To evaluate the effect of 6-thio-dG on non-transformed cells, results showed no significant effect. PMC6062502
BRAF-V600E/NRAS-mutant cells derived from melanoma patients resistant to BRAF/MEK inhibitors 1 µM 7 days To evaluate the effect of 6-thio-dG on the viability of BRAF/MEK inhibitor-resistant melanoma cells, results showed impaired cell viability. PMC6062502
NRAS-mutant melanoma cells 1 µM 7 days To evaluate the effect of 6-thio-dG on the viability of NRAS-mutant melanoma cells, results showed impaired cell viability. PMC6062502
H2087 NSCLC cells 3 μM 9-18 days Established acquired resistance model in H2087 cells, finding downregulation of SLC43A3 in resistant clones. PMC7056593
SH-SY5Y 2.65 µM (GI50) 96 hours To evaluate the synergistic anti-tumor effects of 6-thio-dG in combination with etoposide, doxorubicin, or ceritinib in neuroblastoma cell lines. Results showed robust synergistic effects for combinations with etoposide or doxorubicin, but weaker effects with ceritinib. PMC9579108
BE(2)-C 2.65 µM (GI50) 96 hours To evaluate the synergistic anti-tumor effects of 6-thio-dG in combination with etoposide, doxorubicin, or ceritinib in neuroblastoma cell lines. Results showed robust synergistic effects for combinations with etoposide or doxorubicin, but weaker effects with ceritinib. PMC9579108
CLB-GA 2.65 µM (GI50) 96 hours To evaluate the synergistic anti-tumor effects of 6-thio-dG in combination with etoposide, doxorubicin, or ceritinib in neuroblastoma cell lines. Results showed robust synergistic effects for combinations with etoposide or doxorubicin, but weaker effects with ceritinib. PMC9579108
Human bronchial epithelial basal progenitor cells (HBECs) 3 μM every 3 days for 3 passages Inhibited colony growth, indicating toxicity of 6-thio-dG to HBECs with short telomeres PMC6956733

In Vivo:

Species
Animal Model
Administration Dosage Frequency Description References
Mice HDM-induced allergic airway inflammation model Intraperitoneal injection 5 mg/kg Daily for one week (D21-D27) Induction of telomere dysfunction to attenuate allergic response upon HDM exposure. Results showed that 6-thio-dG treated mice exhibited attenuated eosinophil counts, reduced serum IgE and IL13 levels, and decreased airway hyperresponsiveness (AHR) following HDM exposure. PMC10803750
Nude mice Xenograft model of H2087 sensitive and acquired resistant clones Intraperitoneal injection 3 mg/kg Five times a week for two weeks To validate the response of H2087 sensitive and acquired resistant clones to 6-thio-dG, finding downregulation of SLC43A3 in resistant clones. PMC7056593
Mice MC38 tumor model Intraperitoneal injection 3 mg/kg Once daily for 3 days Evaluate the anti-tumor effect of 6-thio-dG in immunocompetent Mice models PMC7494563
Athymic nude mice Subcutaneous xenograft model Intraperitoneal injection 2.5 mg/kg Three times per week for 28 days To evaluate the anti-tumor effects of 6-thio-dG in combination with etoposide in neuroblastoma xenograft models. Results showed significant tumor growth inhibition and improved survival in CLB-GA and SH-SY5Y models, but not in BE(2)-C model. PMC9579108
Athymic mice (nu/nu genotype, Balb/c background) Glioma xenograft model Intraperitoneal injection 3 mg/kg Every other day for a total of 10 treatments To evaluate the therapeutic efficacy of THIO in glioma xenograft models, results showed that THIO significantly delayed the growth of U87MG tumors but had no significant effect on U251MG tumors. PMC8678347
Mice NRAS-mutant melanoma xenograft model Intraperitoneal injection 2.5 mg/kg Once daily for 14 days To evaluate the effect of 6-thio-dG on tumor growth in NRAS-mutant melanoma xenograft model, results showed slowed tumor growth. PMC6062502
C57BL/6 mice HDM-induced allergic airway inflammation model Intraperitoneal injection 5 mg/kg Daily for one week (D21-D27) Induction of telomere dysfunction to attenuate allergic response upon HDM exposure. Results showed that 6-thio-dG treated mice exhibited attenuated eosinophil counts, reduced serum IgE and IL13 levels, and decreased airway hyperresponsiveness (AHR) following HDM exposure. PMC8135011
Nude rats Orthotopic oligodendroglioma model Intraperitoneal injection 50 mg/kg Daily for 7 days, then 4 times per week until tumors were no longer visible on MRI To evaluate the therapeutic effect of 6-thio-dG on orthotopic oligodendrogliomas, results showed that 6-thio-dG significantly reduced 6-PG production at an early timepoint and significantly decreased tumor volume by day 14. PMC10433788

Protocol

Bio Calculators
Preparing Stock Solutions 1mg 5mg 10mg

1 mM

5 mM

10 mM

3.53mL

0.71mL

0.35mL

17.65mL

3.53mL

1.76mL

35.30mL

7.06mL

3.53mL

Dissolving Methods
Please choose the appropriate dissolution scheme according to your animal administration guide.For the following dissolution schemes, clear stock solution should be prepared according to in vitro experiments, and then cosolvent should be added in turn:

in order to ensure the reliability of the experimental results, the clarified stock solution can be properly preserved according to the storage conditions; The working fluid for in vivo experiment is recommended to be prepared now and used on the same day;

The percentage shown in front of the following solvent refers to the volume ratio of the solvent in the final solution; If precipitation or precipitation occurs in the preparation process, it can be assisted by heating and/or ultrasound.
Protocol 1
Protocol 2

References

 

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