Date published: 2026-4-24

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XPC Inhibitors

XPC Inhibitors belong to a diverse chemical class of organic compounds known for their ability to modulate the activity of the XPC protein, a critical player in the intricate machinery of DNA repair. The XPC protein is an integral component of the Nucleotide Excision Repair (NER) pathway, which safeguards the integrity of the genetic material by identifying and excising DNA lesions induced by various environmental factors, such as ultraviolet (UV) radiation and chemical mutagens. XPC inhibitors, therefore, are compounds or molecules that have been identified and developed to specifically target and disrupt the normal functioning of the XPC protein within this DNA repair system.

The chemical structures of XPC inhibitors can vary widely, encompassing natural products found in plants like flavonoids and alkaloids as well as synthetic compounds. These inhibitors exert their effects by interfering with the interaction between XPC and damaged DNA, impairing the recognition and binding of the XPC protein to lesions in the genetic material. Some XPC inhibitors act by modulating the expression of the XPC gene, thereby reducing the overall levels of the XPC protein available for repair processes. The specific mechanisms by which XPC inhibitors operate may differ among compounds, but they all share the common goal of disrupting the DNA repair machinery's ability to efficiently detect and remove damaged DNA, ultimately affecting the cell's ability to maintain genomic stability. Researchers have explored the applications of XPC inhibitors in various fields, including photoprotection, where their ability to enhance the sensitivity of cells to DNA damage or inhibit repair processes can be harnessed for specific purposes. However, it's important to emphasize that these compounds are primarily characterized by their interference with the XPC protein's role in DNA repair, making them valuable tools for understanding cellular processes related to genome maintenance and integrity.

SEE ALSO...

Items 1 to 10 of 11 total

Display:

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Caffeine

58-08-2sc-202514
sc-202514A
sc-202514B
sc-202514C
sc-202514D
50 g
100 g
250 g
1 kg
5 kg
$33.00
$67.00
$97.00
$192.00
$775.00
13
(1)

Caffeine has been found to inhibit XPC function by interfering with the protein's interaction with damaged DNA. It can sensitize cancer cells to radiation therapy.

Curcumin

458-37-7sc-200509
sc-200509A
sc-200509B
sc-200509C
sc-200509D
sc-200509F
sc-200509E
1 g
5 g
25 g
100 g
250 g
1 kg
2.5 kg
$37.00
$69.00
$109.00
$218.00
$239.00
$879.00
$1968.00
47
(1)

A compound found in turmeric, curcumin inhibits XPC expression and can enhance the susceptibility of cancer cells to DNA damage.

Resveratrol

501-36-0sc-200808
sc-200808A
sc-200808B
100 mg
500 mg
5 g
$80.00
$220.00
$460.00
64
(2)

Found in red grapes and wine, resveratrol can suppress XPC expression and enhance the effects of DNA-damaging agents.

Berberine

2086-83-1sc-507337
250 mg
$92.00
1
(0)

This alkaloid, found in several plants, can inhibit XPC expression.

Quercetin

117-39-5sc-206089
sc-206089A
sc-206089E
sc-206089C
sc-206089D
sc-206089B
100 mg
500 mg
100 g
250 g
1 kg
25 g
$11.00
$17.00
$110.00
$250.00
$936.00
$50.00
33
(2)

Quercetin is a flavonoid that can inhibit XPC activity.

Genistein

446-72-0sc-3515
sc-3515A
sc-3515B
sc-3515C
sc-3515D
sc-3515E
sc-3515F
100 mg
500 mg
1 g
5 g
10 g
25 g
100 g
$45.00
$164.00
$200.00
$402.00
$575.00
$981.00
$2031.00
46
(1)

Found in soy products, genistein can inhibit XPC expression and enhance DNA repair processes.

Nicotinamide

98-92-0sc-208096
sc-208096A
sc-208096B
sc-208096C
100 g
250 g
1 kg
5 kg
$44.00
$66.00
$204.00
$831.00
6
(1)

This form of vitamin B3 has been shown to inhibit XPC function.

Thymoquinone

490-91-5sc-215986
sc-215986A
1 g
5 g
$47.00
$133.00
21
(2)

Found in black seed oil, thymoquinone has been investigated for its ability to inhibit XPC and enhance DNA repair.

Methylene blue

61-73-4sc-215381B
sc-215381
sc-215381A
25 g
100 g
500 g
$43.00
$104.00
$328.00
3
(1)

This synthetic dye has shown XPC inhibitory effects.

(−)-Epigallocatechin Gallate

989-51-5sc-200802
sc-200802A
sc-200802B
sc-200802C
sc-200802D
sc-200802E
10 mg
50 mg
100 mg
500 mg
1 g
10 g
$43.00
$73.00
$126.00
$243.00
$530.00
$1259.00
11
(1)

(-)-Epigallocatechin Gallate, found in green tea, can inhibit XPC function and enhance the repair of UV-induced DNA damage.