Date published: 2025-10-12

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MD-1 Inhibitors

Chemical inhibitors of MD-1 utilize various mechanisms to impede the function of this protein within immune signaling pathways. BAY 11-7082, Parthenolide, and Wedelolactone exert their inhibitory effects by targeting the NF-κB pathway, which is integrally connected with the functional activity of MD-1. BAY 11-7082 specifically inhibits the phosphorylation of IκBα, a precursor event to the activation of NF-κB. Similarly, Parthenolide suppresses NF-κB by directly targeting and inhibiting this transcription factor, while Wedelolactone acts as an inhibitor of IκB kinase, a key enzyme in the phosphorylation process that activates NF-κB. Emodin and Andrographolide also contribute to the inhibition of NF-κB, with Emodin interfering with the kinase activity of IκB and Andrographolide inhibiting NF-κB activation by modifying cysteine residues in its activation pathway.

In conjunction with these, SN50, PDTC, QNZ (EVP4593), TPCA-1, JSH-23, IMD-0354, and Sulforaphane constitute a group of inhibitors that prevent the activation and nuclear translocation of NF-κB, which is a critical step for MD-1 to exert its role in immune responses. SN50 contains a peptide sequence that impedes the nuclear translocation of activated NF-κB. PDTC blocks the oxidative modification of IκB, thereby preventing the degradation that would otherwise lead to NF-κB activation. QNZ stops NF-κB's translocation to the nucleus and its subsequent transcriptional activity. TPCA-1 selectively inhibits IκB kinase-2, crucial for IκB degradation. JSH-23 restricts NF-κB from entering the nucleus and binding to DNA, IMD-0354 inhibits IκB kinase, and Sulforaphane blocks the degradation of IκB. These diverse chemical actions converge on the common outcome of inhibiting NF-κB, thereby reducing the functional activity of MD-1 in immune signaling cascades.

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Items 1 to 10 of 11 total

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Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

BAY 11-7082

19542-67-7sc-200615B
sc-200615
sc-200615A
5 mg
10 mg
50 mg
$61.00
$83.00
$349.00
155
(1)

Inhibits IκBα phosphorylation, thereby preventing activation of NF-κB, which is involved in the signaling pathways of MD-1. By inhibiting NF-κB, BAY 11-7082 reduces the functional activity of MD-1 which relies on NF-κB signaling for initiating immune responses.

Parthenolide

20554-84-1sc-3523
sc-3523A
50 mg
250 mg
$79.00
$300.00
32
(2)

Targets and inhibits NF-κB, a transcription factor that regulates the expression of genes critical to the immune response in which MD-1 is involved. By inhibiting NF-κB, Parthenolide suppresses the signaling cascade that MD-1 is a part of, thus inhibiting MD-1's function in the immune response.

Wedelolactone

524-12-9sc-200648
sc-200648A
1 mg
5 mg
$108.00
$330.00
8
(0)

Acts as an inhibitor of IκB kinase, which is essential for the activation of NF-κB. By inhibiting this kinase, Wedelolactone impairs the NF-κB pathway, resulting in the inhibition of downstream immune responses in which MD-1 is involved.

Emodin

518-82-1sc-202601
sc-202601A
sc-202601B
50 mg
250 mg
15 g
$103.00
$210.00
$6132.00
2
(1)

Interferes with the kinase activity of IκB, leading to the inhibition of NF-κB. Since NF-κB is crucial for the signaling mechanisms that involve MD-1, blocking this pathway inhibits the functional role of MD-1 in immune response modulation.

Andrographolide

5508-58-7sc-205594
sc-205594A
50 mg
100 mg
$15.00
$39.00
7
(1)

Inhibits NF-κB activation by covalently modifying cysteine residues in the NF-κB activation pathway. This blockade prevents the transcription of NF-κB-dependent genes, thereby inhibiting the signaling pathways that are essential for MD-1's function in the immune response.

Pyrrolidinedithiocarbamic acid ammonium salt

5108-96-3sc-203224
sc-203224A
5 g
25 g
$32.00
$63.00
11
(1)

Pyrrolidine dithiocarbamate (PDTC) acts as an inhibitor of NF-κB by blocking the oxidation of IκB, which would otherwise lead to its degradation and subsequent activation of NF-κB. By inhibiting NF-κB, PDTC can inhibit the functional activity of MD-1, which relies on NF-κB for its role in immune signaling pathways.

QNZ

545380-34-5sc-200675
1 mg
$115.00
12
(1)

Inhibits the activation of NF-κB by preventing its translocation to the nucleus and the subsequent transcription of immune response genes. As MD-1 functions within the NF-κB signaling pathway, inhibition of NF-κB by QNZ leads to a direct inhibition of MD-1's role in the immune response.

IKK-2 Inhibitor IV

507475-17-4sc-203083
500 µg
$130.00
12
(1)

Selectively inhibits IκB kinase-2 (IKK-2), which is responsible for IκB degradation and NF-κB activation. By inhibiting IKK-2, TPCA-1 suppresses NF-κB signaling, thereby inhibiting the immune signaling pathways that involve MD-1.

NFκB Activation Inhibitor II, JSH-23

749886-87-1sc-222061
sc-222061C
sc-222061A
sc-222061B
5 mg
10 mg
50 mg
100 mg
$210.00
$252.00
$1740.00
$1964.00
34
(1)

Blocks the nuclear translocation of NF-κB and inhibits its DNA binding activity. As MD-1 is implicated in immune signaling pathways that require NF-κB activity, JSH-23 effectively inhibits MD-1's function by disrupting the NF-κB pathway.

IMD 0354

978-62-1sc-203084
5 mg
$199.00
3
(1)

Inhibits IκB kinase, thereby preventing NF-κB activation. Since MD-1 is part of the signaling pathways regulated by NF-κB, IMD-0354's inhibition of IκB kinase results in functional inhibition of MD-1 by hindering the downstream immune response signaling.