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  1. General Info
  2. Source Info
  3. Effects Info
  4. Reference
Phytochemical Details
01. General Information
Name Cucurbitacin B
PubChem CID 5281316
Molecular Weight 558.7g/mol
Synonyms

cucurbitacin B, cucurbitacin B 2-sulfate

Formula C₃₂H₄₆O₈
SMILES CC(=O)OC(C)(C)C=CC(=O)C(C)(C1C(CC2(C1(CC(=O)C3(C2CC=C4C3CC(C(=O)C4(C)C)O)C)C)C)O)O
InChI 1S/C32H46O8/c1-17(33)40-27(2,3)13-12-23(36)32(9,39)25-21(35)15-29(6)22-11-10-18-19(14-20(34)26(38)28(18,4)5)31(22,8)24(37)16-30(25,29)7/h10,12-13,19-22,25,34-35,39H,11,14-16H2,1-9H3/b13-12+/t19-,20+,21-,22+,25+,29+,30-,31+,32+/m1/s1
InChIKey IXQKXEUSCPEQRD-DKRGWESNSA-N
CAS Number 6199-67-3
ChEMBL ID CHEMBL508185
ChEBI ID CHEBI:3941
KEGG ID C08794
Toxicity Organism Test Type Route(Dose)
rat LD50 intraperitoneal(165 mg/kg)
mouse LD50 intraperitoneal(254 mg/kg)
rat LD50 oral(322 mg/kg)
Structure 2D-img
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2D MOL 3D MOL
02. Source Information of Phytochemical
Trichosanthes klrllowll Cold
Chineses Pinyin GuaLou
Use Part Fruit
Habitat ShanDong, HeBei, HeNan
Flavor Sweet, Mildly bitter
Meridian Tropism Lung, Stomach, Large intestine
03. Combinatorial Therapeutic Effect(s)
Synergistic Effect
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Drug(s) whose efficacy can be enhanced by this phytochemical
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Combination Pair ID: 217
Pair Name Cucurbitacin B, Cisplatin
Partner Name Cisplatin
Disease Info [ICD-11: 2C94] Bladder cancer Investigative
Biological Phenomena Induction-->Autophagic proteins
Gene Regulation Down-regulation Phosphorylation AKT1 hsa207
Down-regulation Phosphorylation AKT1S1 hsa84335
Down-regulation Phosphorylation BAD hsa572
Up-regulation Expression BAX hsa581
Down-regulation Expression BCL2 hsa596
Up-regulation Expression BECN1 hsa8678
Down-regulation Phosphorylation MTOR hsa2475
Up-regulation Expression PSMD9 hsa5715
Down-regulation Phosphorylation RAF1 hsa5894
In Vitro Model MB49 Bladder transitional cell carcinoma Mus musculus (Mouse) CVCL_7076
In Vivo Model 1×10⁶ MB49 cells in 100 μL cold PBS were injected subcutaneously into the right flank of the each C57BL/6 mouse strain.
Result Our results showed that CuB may be a new agent that can support conventional treatment in bladder cancer. Our study is important in terms of enlightening new pathways and developing new treatment methods in the treatment of bladder cancer.
Combination Pair ID: 219
Pair Name Cucurbitacin B, Sorafenib
Partner Name Sorafenib
Disease Info [ICD-11: 2C12] Hepatocellular carcinoma Investigative
Gene Regulation Up-regulation Cleavage CASP3 hsa836
Up-regulation Cleavage CASP9 hsa842
Down-regulation Phosphorylation STAT3 hsa6774
In Vitro Model Hep-G2 Hepatoblastoma Homo sapiens (Human) CVCL_0027
In Vivo Model 5×10⁶ HepG2 cells were injected subcutaneously into the right flank of nude mice.
Result Sorafenib and CuB exert synergistic antitumor effects through a pathway that may involve STAT3 phosphorylation, and this may represent a promising therapeutic approach for treatment of HCC.
Combination Pair ID: 689
Pair Name Cucurbitacin B, Doxorubicin
Partner Name Doxorubicin
Disease Info [ICD-11: 2D10.Z] Thyroid cancer Investigative
Gene Regulation Down-regulation Expression BCL2 hsa596
Down-regulation Expression BIRC5 hsa332
Up-regulation Expression IREB2 hsa3658
Up-regulation Phosphorylation MAPK3 hsa5595
Up-regulation Cleavage PARP1 hsa142
In Vitro Model 8505C Thyroid gland anaplastic carcinoma Homo sapiens (Human) CVCL_1054
CAL-62 Thyroid gland anaplastic carcinoma Homo sapiens (Human) CVCL_1112
8505C Thyroid gland anaplastic carcinoma Homo sapiens (Human) CVCL_1054
CAL-62 Thyroid gland anaplastic carcinoma Homo sapiens (Human) CVCL_1112
Result Synergistic cytotoxicity of doxorubicin with cucurbitacin B is mediated by B-cell chronic lymphocytic leukemia/lymphoma 2 family proteins, survivin, and reactive oxygen species and modulated by Janus kinase 2/signal transducer and activator of transcription 3 and extracellular signal-regulated kinase 1/2 in anaplastic thyroid carcinoma cells.
Combination Pair ID: 1023
Pair Name Cucurbitacin B, Erastin
Partner Name Erastin
Disease Info [ICD-11: 2C60] Breast cancer Investigative
Biological Phenomena Induction-->Ferroptosis
Gene Regulation Up-regulation Expression IREB2 hsa3658
In Vitro Model MDA-MB-231 Breast adenocarcinoma Homo sapiens (Human) CVCL_0062
MCF-7 Invasive breast carcinoma of no special type Homo sapiens (Human) CVCL_0031
Result Cucurbitacin B and erastin co-treatment synergistically induced ferroptosis in breast cancer cells via altered iron-regulating proteins and lipid peroxidation
Drug(s) whose resistance can be reversed by this phytochemical
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Combination Pair ID: 218
Pair Name Cucurbitacin B, Gefitinib
Partner Name Gefitinib
Disease Info [ICD-11: 2C25] Lung cancer Investigative
Biological Phenomena Induction-->Apoptosis
Gene Regulation Down-regulation Phosphorylation STAT3 hsa6774
In Vitro Model PC-9 Lung adenocarcinoma Homo sapiens (Human) CVCL_B260
Result CuB reduced the proliferation of GR PC9 cells by modulating the miR‑17‑5p/STAT3 axis, and may represent a promising potential novel strategy for the reversal of GR.
04. Reference
No. Title Href
1 Cucurbitacin B and cisplatin induce the cell death pathways in MB49 mouse bladder cancer model. Exp Biol Med (Maywood). 2020 May;245(9):805-814. doi: 10.1177/1535370220917367. Click
2 Sorafenib and CuB exert synergistic antitumor effects against hepatocellular carcinoma cells via inhibition of STAT3 phosphorylation. FEBS Open Bio. 2021 Jan;11(1):133-145. doi: 10.1002/2211-5463.13035. Click
3 Doxorubicin has a synergistic cytotoxicity with cucurbitacin B in anaplastic thyroid carcinoma cells. Tumour Biol. 2017 Feb;39(2):1010428317692252. doi: 10.1177/1010428317692252. Click
4 Cucurbitacin B and erastin co-treatment synergistically induced ferroptosis in breast cancer cells via altered iron-regulating proteins and lipid peroxidation. Toxicol In Vitro. 2024 Feb;94:105732. doi: 10.1016/j.tiv.2023.105732. Click
5 Cucurbitacin B enhances apoptosis in gefitinib resistant non‑small cell lung cancer by modulating the miR‑17‑5p/STAT3 axis. Mol Med Rep. 2021 Oct;24(4):710. doi: 10.3892/mmr.2021.12349. Click
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