Date published: 2026-3-17

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CD55 Inhibitors

CD55, or decay-accelerating factor (DAF), is integral to the body's innate immune response, specifically within the complement system. By accelerating the decay of C3 convertases, CD55 acts as a safeguard, ensuring that the complement system, which aids in clearing pathogens, does not inadvertently damage the body's own cells. This protective mechanism is crucial in preventing self-directed complement-mediated cytotoxicity. Inhibitors targeting CD55 have been developed to modulate its function. These inhibitors can either impede CD55's ability to interact with components of the complement system or influence its expression levels on the cell surface. The exploration and development of CD55 inhibitors are of substantial importance in immunology. By manipulating CD55's activity, researchers can delve deeper into understanding autoimmune diseases, transplant rejection, and other conditions where the complement system might be inappropriately activated. The nuanced understanding of how CD55 inhibitors function can pave the way for interventions in diseases where the regulation of the complement system is imperative.
Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

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 might down-regulate CD55 expression in certain cells, increasing complement susceptibility.

(−)-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)

EGCG can reduce CD55 expression in certain cancer cells, increasing their susceptibility to complement.

Niflumic acid

4394-00-7sc-204820
5 g
$32.00
3
(1)

Niflumic acid may down-regulate CD55 expression, affecting cell protection against complement.

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)

Curcumin might suppress CD55 expression in certain cancer cells, increasing complement-mediated cytotoxicity.

Lovastatin

75330-75-5sc-200850
sc-200850A
sc-200850B
5 mg
25 mg
100 mg
$29.00
$90.00
$339.00
12
(1)

Lovastatin can reduce CD55 expression, potentially affecting protection against complement attack.

Progesterone

57-83-0sc-296138A
sc-296138
sc-296138B
1 g
5 g
50 g
$20.00
$52.00
$298.00
3
(1)

Progesterone might down-regulate CD55 expression in certain cells, affecting complement protection.

PGE2

363-24-6sc-201225
sc-201225C
sc-201225A
sc-201225B
1 mg
5 mg
10 mg
50 mg
$57.00
$159.00
$275.00
$678.00
37
(1)

Prostaglandin E2 might suppress CD55 expression in certain cells, affecting protection against complement.