Structure of β-Lapachone
CAS No.: 4707-32-8
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The BI-3802 was designed by Boehringer Ingelheim and could be obtained free of charge through the Boehringer Ingelheim open innovation portal opnMe.com, associated with its negative control.
β-Lapachone is a naturally occurring quinone obtained from the bark of the lapacho tree (Tabebuia avellanedae) with cancer chemopreventive properties and a potent inhibitor of IDO1 (IC50=0.44 μM).
Synonyms: ARQ-501; NSC-26326; SL 11001
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Peng, Xiaohua ; Ali, Taufeeque ; Ponnamperumage, Thilini Nimasha Fernando ; Peterson, Alexis Kimberly ; Li, Daniel ; Gao, Hanlun , et al.
Abstract: Developing targeted cancer therapy with minimal side effects remains a significant challenge. Oxidative stress-based cancer therapies have gained traction in recent years. However, challenges such as limited tumor selectivity and therapeutic durability often hinder their clinical application. Here, we report a novel strategy of combining ROS-responsive prodrugs with prooxidants to achieve potent, durable, and selective tumor killing effects. This approach leverages pro-oxidants (i.e. ascorbate) to amplify oxidative stress within tumors, sensitizing cancer cells to ROS-responsive prodrugs. Both in vitro and in vivo studies confirm the anticancer synergism and selectivity of this combination therapy, which achieved complete tumor regression without recurrence, significantly outperforming single-agent treatments. This combination therapy is effective against hard-to-treat cancers like triple-negative breast cancer and glioblastoma. Our findings highlight the potential of targeting tumor redox mechanisms through a combination of ROS-responsive prodrugs and pro-oxidants, offering a promising avenue for repurposing these agents in cancer therapy.
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Keywords: combination therapy ; synergistic anticancer effects ; ROS-responsive prodrugs ; triple negative breast cancer ; ROS-generating agents ; vitamin C ; complete tumor regression
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CAS No. : | 4707-32-8 |
Formula : | C15H14O3 |
M.W : | 242.27 |
SMILES Code : | O=C1C(CCC(C)(C)O2)=C2C3=CC=CC=C3C1=O |
Synonyms : |
ARQ-501; NSC-26326; SL 11001
|
MDL No. : | MFCD01712233 |
InChI Key : | QZPQTZZNNJUOLS-UHFFFAOYSA-N |
Pubchem ID : | 3885 |
GHS Pictogram: |
![]() |
Signal Word: | Warning |
Hazard Statements: | H302-H315-H319-H335 |
Precautionary Statements: | P261-P305+P351+P338 |
Target |
|
In Vitro:
Cell Line
|
Concentration | Treated Time | Description | References |
LNCaP cells | 1–5 μM | 4 h | Induced apoptosis, observed G0/G1 phase block and increased apoptotic cell populations | PMC4807624 |
PC-3 cells | 1–5 μM | 4 h | Induced apoptosis, observed G0/G1 phase block and increased apoptotic cell populations | PMC4807624 |
DU-145 cells | 1–5 μM | 4 h | Induced apoptosis, observed G0/G1 phase block and increased apoptotic cell populations | PMC4807624 |
BT549 | 0.5 μM | 48 h | Β-lapachone significantly enhanced the sensitivity of BT549 cells to phenformin, reducing tumor cell proliferation. | PMC8175605 |
BT474 | 1.0 μM | 48 h | Β-lapachone significantly enhanced the sensitivity of BT474 cells to phenformin, reducing tumor cell proliferation. | PMC8175605 |
MDA-MB-231 | 0.5 μM | 48 h | Β-lapachone significantly enhanced the sensitivity of MDA-MB-231 cells to phenformin, reducing tumor cell proliferation. | PMC8175605 |
HL-60 cells | ≥0.5 μM | 4 h | Induced apoptosis, observed 180-200 bp oligonucleosome DNA laddering and apoptotic cells via flow cytometry | PMC4807624 |
MDA-MB-231 cells | 10 μM | 2 h | To evaluate the effect of β-Lapachone on PP-InsP levels in NQO1-deficient cells, the results showed that β-Lapachone did not affect 5-PP-InsP5 levels but significantly reduced ATP levels. | PMC10450438 |
HCT116 cells | 2.5 μM, 5 μM, or 10 μM | 2 h | To evaluate the effect of β-Lapachone on PP-InsP levels, the results showed that β-Lapachone dose-dependently decreased PP-InsP levels, while InsP6 levels remained stable. | PMC10450438 |
MDA-MB-231 cells | 10 μM | 2 h | In MDA-MB-231 cells, which lack NQO1, β-lapachone did not reduce PP-InsP levels, but ATP levels dropped significantly. | PMC10450438 |
MDA-MB-231 breast cancer cells | 6 μM | 2 h | To evaluate the cytotoxicity of β-Lapachone micelles on NQO1-overexpressing cells, results showed more than 50% cell death in NQO1+ cells at a 6 μM dose. | PMC2064869 |
DU-145 prostate cancer cells | 6 μM | 2 h | To evaluate the cytotoxicity of β-Lapachone micelles on NQO1-overexpressing cells, results showed more than 50% cell death in NQO1+ cells at a 6 μM dose. | PMC2064869 |
H596 non-small cell lung cancer cells | 5 μM, 10 μM | 2 h | To evaluate the cytotoxicity of β-Lapachone micelles on NQO1-overexpressing cells, results showed 26% and 85% cell death in NQO1+ cells at 5 μM and 10 μM doses, respectively. | PMC2064869 |
ShNQO1 A549 cells | 10 μM | 4 h | In shNQO1 A549 cells, β-lap had a weaker inhibitory effect on NF-κB, indicating that NQO1 plays a crucial role in β-lap-mediated suppression of NF-κB activation. | PMC2877251 |
A549 human lung cancer cells | 10 μM | 4 h | Suppressed radiation-induced NF-κB activation, almost completely abrogated NF-κB DNA binding activity, and inhibited the transcription of NF-κB target genes. | PMC2877251 |
IMR-90 fibroblasts | >40 µM | IMR-90 fibroblasts were resistant to the cytotoxic effects of β-Lapachone. | PMC1913860 | |
A549 NSCLC cells | 2.5 µM | 2 h | Β-Lapachone killed A549 cells in an NQO1-dependent manner, inducing ROS formation, DNA damage, PARP-1 hyperactivation, NAD+/ATP depletion, and apoptosis. | PMC1913860 |
H596 NSCLC cells | 4 µM | 2 h | Β-Lapachone killed NSCLC cells in an NQO1-dependent manner, inducing ROS formation, DNA damage, PARP-1 hyperactivation, NAD+/ATP depletion, and apoptosis. | PMC1913860 |
CHEF/18A cells | 4 μM | 5 h | Β-Lapachone inhibited potentially lethal DNA damage repair (PLDR) processes, thereby reducing x-ray-induced cell transformation. At equivalent survival levels, β-Lapachone treatment resulted in an 8-fold decrease in transformation frequency. | PMC297536 |
In Vivo:
Species
|
Animal Model
|
Administration | Dosage | Frequency | Description | References |
Mice | MDA-MB-231 mammary tumor model | Intraperitoneal injection | 25 mg/kg | Β-lapachone every 2 days, phenformin daily, continuous treatment | Combined β-lapachone and phenformin treatment significantly inhibited MDA-MB-231 mammary tumor growth and increased oxidative damage in mammary tumors. | PMC8175605 |
Clinical Trial:
NCT Number | Conditions | Phases | Recruitment | Completion Date | Locations |
NCT03575078 | Lymphoma | Phase 1 | Not yet recruiting | August 23, 2023 | - |
Bio Calculators | ||||
Preparing Stock Solutions | ![]() |
1mg | 5mg | 10mg |
1 mM 5 mM 10 mM |
4.13mL 0.83mL 0.41mL |
20.64mL 4.13mL 2.06mL |
41.28mL 8.26mL 4.13mL |
Tags: β-Lapachone | ARQ-501 | NSC-26326 | ARQ501 | ARQ 501 | NSC26326 | NSC 26326 | NSC-26326 | Topoisomerase | Autophagy | Apoptosis | NQO1 activator | antitumor | apoptosis | reactive oxygen species | NAD(P)H:quinone oxidoreductase 1 | quinone oxidoreductase 1 | NAD(P)H | 4707-32-8
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