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  1. General Info
  2. Effects Info
  3. Reference
Molecular Details
01. General Information
Name Cystine/glutamate transporter
UniProt ID XCT_HUMAN
Gene Name SLC7A11
Gene ID 23657
Synonyms
SLC7A11, CCBR1, xCT
Sequence
MVRKPVVSTISKGGYLQGNVNGRLPSLGNKEPPGQEKVQLKRKVTLLRGVSIIIGTIIGA
GIFISPKGVLQNTGSVGMSLTIWTVCGVLSLFGALSYAELGTTIKKSGGHYTYILEVFGP
LPAFVRVWVELLIIRPAATAVISLAFGRYILEPFFIQCEIPELAIKLITAVGITVVMVLN
SMSVSWSARIQIFLTFCKLTAILIIIVPGVMQLIKGQTQNFKDAFSGRDSSITRLPLAFY
YGMYAYAGWFYLNFVTEEVENPEKTIPLAICISMAIVTIGYVLTNVAYFTTINAEELLLS
NAVAVTFSERLLGNFSLAVPIFVALSCFGSMNGGVFAVSRLFYVASREGHLPEILSMIHV
RKHTPLPAVIVLHPLTMIMLFSGDLDSLLNFLSFARWLFIGLAVAGLIYLRYKCPDMHRP
FKVPLFIPALFSFTCLFMVALSLYSDPFSTGIGFVITLTGVPAYYLFIIWDKKPRWFRIM
SEKITRTLQIILEVVPEEDKL
Pathway Map MAP LINK
T.C. Number 2.A.3.8.18
KEGG ID hsa23657
TTD ID T11615
Pfam PF00324; PF13520; PF13564
02. Combinatorial Therapeutic Effect(s)
Synergistic Effect
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Enhancing Drug Efficacy
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Combination Pair ID: 585
Pair Name Beta-Elemene, Cetuximab
Phytochemical Beta-Elemene
Drug Cetuximab
Disease Info [ICD-11: 2B91] Colorectal cancer Investigative
Regulate Info Down-regulation Cystine/glutamate transporter Expression
Result natural product β-elemene is a new ferroptosis inducer and combinative treatment of β-elemene and cetuximab is sensitive to KRAS mutant CRC cells by inducing ferroptosis and inhibiting EMT, which will hopefully provide a prospective strategy for CRC patients with RAS mutations.
Combination Pair ID: 1
Pair Name Camptothecin, Sorafenib
Phytochemical Camptothecin
Drug Sorafenib
Disease Info [ICD-11: 2C12] Hepatocellular carcinoma Investigative
Regulate Info Down-regulation Cystine/glutamate transporter Expression
Result The synergetic combination significantly increases lipid peroxidation and iron concentration, decreases TAC, GPX4 and GR activity, and reduces the expression of both Nrf2 and SLC7A11. The downregulation of Nrf2 expression has a vital role in the reduction of resistance mediators to sorafenib against HCC cells like (p62, MT1G, and ABCG2) and improves the cellular uptake of sorafenib. The current study provided evidence that Nrf2 inhibition by CPT improves sorafenib's sensitivity and reduces sorafenib's resistance via the augmentation of sorafenib's ferroptosis action.
Combination Pair ID: 165
Pair Name Dihydroartemisinin, Sorafenib
Phytochemical Dihydroartemisinin
Drug Sorafenib
Disease Info [ICD-11: 2C12] Hepatocellular carcinoma Investigative
Regulate Info Down-regulation Cystine/glutamate transporter Expression
Result DHA and Sora had the same mechanism, and the combined application of them could have a synergistic anti-tumor effect by inducing ferroptosis and inhibiting energy metabolism in HepG2 cells.
Combination Pair ID: 564
Pair Name Hederagenin, Cisplatin
Phytochemical Hederagenin
Drug Cisplatin
Disease Info Head and neck cancer
Regulate Info Down-regulation Cystine/glutamate transporter Expression
Result Hederagenin effectively targets cisplatin-resistant HNC cells in vitro and in vivo. Consistent with its effects in other types of cancer, hederagenin markedly induces apoptosis in HNC cells by activating the mitochondria-driven intrinsic apoptotic pathway. We demonstrated that the apoptosis-inducing effects of hederagenin are mediated by the inhibition of the Nrf2-ARE antioxidant pathway.
Combination Pair ID: 189
Pair Name Ursolic acid, Sorafenib
Phytochemical Ursolic acid
Drug Sorafenib
Disease Info [ICD-11: 2A00-2F9Z] Solid tumour or cancer Investigative
Regulate Info Down-regulation Cystine/glutamate transporter Expression
Result These results suggest that the synergistic antitumor effects of sorafenib combined with ursolic acid may involve the induction of Mcl-1-related apoptosis and SLC7A11-dependent ferroptosis. Our findings may offer a novel effective therapeutic strategy for tumor treatment.
Combination Pair ID: 533
Pair Name Vitamin C, Erastin
Phytochemical Vitamin C
Drug Erastin
Disease Info [ICD-11: 2C10] Pancreatic cancer Investigative
Regulate Info Down-regulation Cystine/glutamate transporter Expression
Result The combination of erastin and vitamin C exerts a synergistic effect of classical and nonclassical modes to induce ferroptosis in PC cells, which may provide a promising therapeutic strategy for PC.
Combination Pair ID: 918
Pair Name Zerumbone, Gefitinib
Phytochemical Zerumbone
Drug Gefitinib
Disease Info [ICD-11: 2C25] Lung cancer Investigative
Regulate Info Down-regulation Cystine/glutamate transporter Expression
Result Our study suggested that zerumbone combined with gefitinib could effectively inhibit lung cancer for multi-model therapies, including the inhibition of tumor growth, angiogenesis, induce cell apoptosis, and ferroptosis.
Reversing Drug Resistance
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Combination Pair ID: 917
Pair Name 2,3,5,6-Tetramethylpyrazine, Cisplatin
Phytochemical 2,3,5,6-Tetramethylpyrazine
Drug Cisplatin
Disease Info [ICD-11: 2C10] Pancreatic cancer Investigative
Regulate Info Down-regulation Cystine/glutamate transporter Expression
Result A series of ligustrazine-derived chalcones-modified platinum(IV) complexes were synthesized and evaluated for their anti-proliferative potency and generated an optimal platinum(IV) complex 16a. The above-described results indicated that 16a obtained different anti-cancer mechanisms of CDDP, which could initiate mitochondria-dependent apoptosis and xCT-GPX4 axial-mediated ferroptosis in PANC-1/CDDP cells.
03. Reference
No. Title Href
1 Combinative treatment of β-elemene and cetuximab is sensitive to KRAS mutant colorectal cancer cells by inducing ferroptosis and inhibiting epithelial-mesenchymal transformation. Theranostics. 2020;10(11):5107-5119. Published 2020 Apr 6. doi:10.7150/thno.44705 Click
2 Camptothecin Sensitizes Hepatocellular Carcinoma Cells to Sorafenib- Induced Ferroptosis Via Suppression of Nrf2. Inflammation. 2023 Aug;46(4):1493-1511. doi: 10.1007/s10753-023-01823-4. Click
3 Dihydroartemisinin enhances the inhibitory effect of sorafenib on HepG2 cells by inducing ferroptosis and inhibiting energy metabolism. J Pharmacol Sci. 2022 Jan;148(1):73-85. doi: 10.1016/j.jphs.2021.09.008. Click
4 Hederagenin Induces Apoptosis in Cisplatin-Resistant Head and Neck Cancer Cells by Inhibiting the Nrf2-ARE Antioxidant Pathway. Oxid Med Cell Longev. 2017;2017:5498908. doi:10.1155/2017/5498908 Click
5 Ursolic acid enhances the antitumor effects of sorafenib associated with Mcl-1-related apoptosis and SLC7A11-dependent ferroptosis in human cancer. Pharmacol Res. 2022 Aug;182:106306. doi: 10.1016/j.phrs.2022.106306. Click
6 Vitamin C Sensitizes Pancreatic Cancer Cells to Erastin-Induced Ferroptosis by Activating the AMPK/Nrf2/HMOX1 Pathway. Oxid Med Cell Longev. 2022 Jul 19;2022:5361241. doi: 10.1155/2022/5361241. Click
7 Zerumbone combined with gefitinib alleviates lung cancer cell growth through the AKT/STAT3/SLC7A11 axis. Neoplasma. 2023 Feb;70(1):58-70. doi: 10.4149/neo_2022_220418N423. Click
8 Ligustrazine-Derived Chalcones-Modified Platinum(IV) Complexes Intervene in Cisplatin Resistance in Pancreatic Cancer through Ferroptosis and Apoptosis. J Med Chem. 2023 Oct 12;66(19):13587-13606. doi: 10.1021/acs.jmedchem.3c00922. Click
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