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  1. General Info
  2. Source Info
  3. Effects Info
  4. Reference
Phytochemical Details
01. General Information
Name Nobiletin
PubChem CID 72344
Molecular Weight 402.4g/mol
Synonyms

hexamethoxyflavone, nobiletin

Formula C₂₁H₂₂O₈
SMILES COC1=C(C=C(C=C1)C2=CC(=O)C3=C(O2)C(=C(C(=C3OC)OC)OC)OC)OC
InChI 1S/C21H22O8/c1-23-13-8-7-11(9-15(13)24-2)14-10-12(22)16-17(25-3)19(26-4)21(28-6)20(27-5)18(16)29-14/h7-10H,1-6H3
InChIKey MRIAQLRQZPPODS-UHFFFAOYSA-N
CAS Number 478-01-3
ChEMBL ID CHEMBL76447
ChEBI ID CHEBI:7602
Herb ID HBIN037171
KEGG ID C10112
Structure 2D-img
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2D MOL 3D MOL
02. Source Information of Phytochemical
(1) Citrus reticulata Warm
Chineses Pinyin ChenPi
Use Part Pericarp
Habitat FuJian, TaiWan, GuangDong, GuangXi
Flavor Bitter, Pungent
Meridian Tropism Lung, Spleen
Species
>Kingdom: Viridiplantae
 -->Phylum: Streptophyta
  -->Class: Equisetopsida
   -->Order: Sapindales
    -->Family: Rutaceae
     -->Genus: Citrus
      -->Species: Citrus reticulata
(2) Citrus reticulata Warm
Chineses Pinyin GanJu
Use Part Fruit; Peel; Juice
Habitat JiangSu, ZheJiang, AnHui, JiangXi, HuBei, HuNan, GuangDong, GuangXi, HaiNan, SiChuan, GuiZhou, YunNan, TaiWan
Flavor Sour
Species
>Kingdom: Viridiplantae
 -->Phylum: Streptophyta
  -->Class: Equisetopsida
   -->Order: Sapindales
    -->Family: Rutaceae
     -->Genus: Citrus
      -->Species: Citrus reticulata
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: 81
Pair Name Nobiletin, Bicalutamide
Partner Name Bicalutamide
Disease Info [ICD-11: 2C82] Prostate cancer Investigative
Biological Phenomena Induction-->Apoptosis
Gene Regulation Down-regulation Expression MAPK1 hsa5594
Down-regulation Expression NFKB1 hsa4790
Down-regulation Expression STAT3 hsa6774
In Vitro Model VCaP Prostate carcinoma Homo sapiens (Human) CVCL_2235
PC-3 Prostate carcinoma Homo sapiens (Human) CVCL_0035
Result NBT and BCT combination reduced key cellular signaling regulators including: p-Erk/Erk, p-STAT3/STAT3 and NF-κB. Overall, these results suggest that NBT combination with BCT may be an effective treatment for prostate cancer.
Combination Pair ID: 82
Pair Name Nobiletin, Palbociclib
Partner Name Palbociclib
Disease Info [ICD-11: 2C90.0] Renal cell carcinoma Investigative
Biological Phenomena Induction-->Blockade of cell cycle in G0/G1 phase
Gene Regulation Up-regulation Expression BAX hsa581
Down-regulation Expression BCL2 hsa596
Down-regulation Phosphorylation CDK2 hsa1017
Down-regulation Expression CDKN1A hsa1026
Down-regulation Expression PSMD9 hsa5715
Down-regulation Phosphorylation RB1 hsa5925
Down-regulation Expression SKP2 hsa6502
In Vivo Model A total of 2×10⁶ 786-O cells were mixed 1:1 with Matrigel (BD Biosciences) in a total volume of 200 μL, and were injected subcutaneously into the right flank side of nude mice.
Result Nobiletin downregulates the SKP2-p21/p27-CDK2 axis to inhibit tumor progression and shows synergistic effects with palbociclib on renal cell carcinoma
Combination Pair ID: 642
Pair Name Nobiletin, Sorafenib
Partner Name Sorafenib
Disease Info [ICD-11: 2C82] Prostate cancer Investigative
Biological Phenomena Induction-->Blockade of cell cycle in G0/G1 phase
Gene Regulation Up-regulation Expression BAX hsa581
Up-regulation Expression CDKN1A hsa1026
Up-regulation Expression RB1 hsa5925
In Vitro Model PC-3 Prostate carcinoma Homo sapiens (Human) CVCL_0035
Result NOB and SOR combination was more effective than SOR and NOB alone and reduced the exposure time for SOR and NOB in PC-3 cells. Combination strategy is a therapeutic potential to improve efficacy and reduce side-effect of SOR for the treatment of metastatic prostate cancer cells.
Combination Pair ID: 991
Pair Name Nobiletin, Vorinostat
Partner Name Vorinostat
Disease Info [ICD-11: 2C25] Lung cancer Investigative
Biological Phenomena Induction-->Apoptosis and autophagy
Gene Regulation Down-regulation Phosphorylation AKT1 hsa207
Up-regulation Expression BAX hsa581
Down-regulation Expression BCL2 hsa596
Down-regulation Expression BCL-xL hsa598
Down-regulation Expression BECN1 hsa8678
Up-regulation Expression BID hsa637
Up-regulation Expression BIM hsa10018
Up-regulation Cleavage CASP9 hsa842
Up-regulation Expression MAP1LC3B hsa81631
Down-regulation Expression MCL1 hsa4170
Down-regulation Phosphorylation MTOR hsa2475
Up-regulation Cleavage PARP1 hsa142
Down-regulation Phosphorylation PIK3CA hsa5290
In Vitro Model PC-3 Prostate carcinoma Homo sapiens (Human) CVCL_0035
PANC-1 Pancreatic ductal adenocarcinoma Homo sapiens (Human) CVCL_0480
A-549 Lung adenocarcinoma Homo sapiens (Human) CVCL_0023
NCI-H69 Lung small cell carcinoma Homo sapiens (Human) CVCL_1579
NCI-H82 Lung small cell carcinoma Homo sapiens (Human) CVCL_1591
In Vivo Model A subcutaneous injection of 5×10⁶ H82 cells was administered into the right flank of each BALB/c nude mouse.
Result The combination of nobiletin with vorinostat increased histone H3K9 and H3K27 acetylation levels in SCLC mouse tumor tissue and enhanced the expression of the BH3-only proteins BIM and BID. We conclude that nobiletin is a novel natural BH3 mimetic that can cooperate with vorinostat to induce apoptosis and autophagy in SCLC.
04. Reference
No. Title Href
1 Nobiletin, a citrus polymethoxyflavone, enhances the effects of bicalutamide on prostate cancer cells via down regulation of NF-κB, STAT3, and ERK activation. RSC Adv. 2020 Mar 10;10(17):10254-10262. doi: 10.1039/c9ra10020b. Click
2 Nobiletin downregulates the SKP2-p21/p27-CDK2 axis to inhibit tumor progression and shows synergistic effects with palbociclib on renal cell carcinoma. Cancer Biol Med. 2021 Feb 15;18(1):227-244. doi: 10.20892/j.issn.2095-3941.2020.0186. Click
3 Synergistic Effects of Nobiletin and Sorafenib Combination on Metastatic Prostate Cancer Cells. Nutr Cancer. 2019;71(8):1299-1312. doi: 10.1080/01635581.2019.1601237. Click
4 The novel small molecule BH3 mimetic nobiletin synergizes with vorinostat to induce apoptosis and autophagy in small cell lung cancer. Biochem Pharmacol. 2023 Oct;216:115807. doi: 10.1016/j.bcp.2023.115807. Click
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