β-Defensin 20, a crucial player in the innate immune system, holds a significant role in safeguarding against microbial threats. As an antimicrobial peptide, its primary function involves disrupting microbial membranes, exerting a direct and potent bactericidal effect. Beyond this immediate response, β-defensin 20 actively participates in immune modulation by engaging in intricate interactions with diverse cellular processes. The activation of β-defensin 20 involves a nuanced orchestration of cellular pathways and biochemical mechanisms. Several chemicals, including epigallocatechin gallate, trichostatin A, quercetin, sulforaphane, curcumin, sodium butyrate, genistein, resveratrol, 5-azacytidine, alpha-lipoic acid, luteolin, and diallyl disulfide, have been identified as activators. Operating through diverse pathways such as NF-κB, histone deacetylation, AP-1, Nrf2/ARE, and DNA methylation, these compounds influence chromatin remodeling, transcription factor activity, and epigenetic modifications. By directly or indirectly affecting these pathways, these chemicals enhance the transcriptional activity of the DEFB20 gene, leading to increased β-defensin 20 expression.
The activation of β-defensin 20 not only reinforces immediate defense against microbial invaders but also underscores the intricate connections between the innate immune system and various cellular signaling cascades. Understanding the specific pathways involved in β-defensin 20 activation provides insights into potential strategies for enhancing the innate immune response, with implications for host defense and immune modulation.
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Product Name | CAS # | Catalog # | QUANTITY | Price | Citations | RATING |
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(−)-Epigallocatechin Gallate | 989-51-5 | sc-200802 sc-200802A sc-200802B sc-200802C sc-200802D sc-200802E | 10 mg 50 mg 100 mg 500 mg 1 g 10 g | $42.00 $72.00 $124.00 $238.00 $520.00 $1234.00 | 11 | |
Epigallocatechin gallate activates β-defensin 20 by inhibiting the NF-κB pathway. It suppresses IκB kinase activity, preventing IκB degradation and subsequent NF-κB nuclear translocation. This down-regulation of NF-κB alleviates its suppression on DEFB20 transcription, leading to enhanced β-defensin 20 expression with implications for antimicrobial defense. | ||||||
Trichostatin A | 58880-19-6 | sc-3511 sc-3511A sc-3511B sc-3511C sc-3511D | 1 mg 5 mg 10 mg 25 mg 50 mg | $149.00 $470.00 $620.00 $1199.00 $2090.00 | 33 | |
Trichostatin A, a histone deacetylase inhibitor, directly activates β-defensin 20. By inhibiting histone deacetylation, it promotes an open chromatin structure in the DEFB20 promoter region, facilitating increased transcription. This epigenetic modulation results in elevated β-defensin 20 expression, contributing to innate immunity against microbial threats. | ||||||
Quercetin | 117-39-5 | sc-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 $108.00 $245.00 $918.00 $49.00 | 33 | |
Quercetin activates β-defensin 20 indirectly by modulating the AP-1 pathway. It inhibits c-Fos and c-Jun activation, suppressing AP-1 transcriptional activity. As a consequence, the negative regulation on DEFB20 expression is alleviated, leading to increased β-defensin 20 synthesis with antimicrobial implications. | ||||||
D,L-Sulforaphane | 4478-93-7 | sc-207495A sc-207495B sc-207495C sc-207495 sc-207495E sc-207495D | 5 mg 10 mg 25 mg 1 g 10 g 250 mg | $150.00 $286.00 $479.00 $1299.00 $8299.00 $915.00 | 22 | |
Sulforaphane activates β-defensin 20 through the Keap1-Nrf2-ARE pathway. By promoting Nrf2 release from Keap1 inhibition, it facilitates Nrf2 translocation and binding to the DEFB20 promoter's ARE element. This up-regulation reinforces the antimicrobial function of β-defensin 20. | ||||||
Curcumin | 458-37-7 | sc-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 | $36.00 $68.00 $107.00 $214.00 $234.00 $862.00 $1968.00 | 47 | |
Curcumin activates β-defensin 20 by inhibiting the NF-κB pathway. It impedes IκB kinase activity, preventing IκB degradation and subsequent NF-κB nuclear translocation. This down-regulation of NF-κB alleviates its suppression on DEFB20 transcription, leading to enhanced β-defensin 20 expression with implications for antimicrobial defense. | ||||||
Sodium Butyrate | 156-54-7 | sc-202341 sc-202341B sc-202341A sc-202341C | 250 mg 5 g 25 g 500 g | $30.00 $46.00 $82.00 $218.00 | 18 | |
Sodium butyrate, similar to butyrate, serves as a histone deacetylase inhibitor, promoting DEFB20 transcription. By inhibiting histone deacetylation, it allows for an open chromatin conformation in the DEFB20 promoter region, facilitating increased expression of β-defensin 20 and enhancing the innate immune response. | ||||||
Genistein | 446-72-0 | sc-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 | $26.00 $92.00 $120.00 $310.00 $500.00 $908.00 $1821.00 | 46 | |
Genistein indirectly activates β-defensin 20 by inhibiting the PI3K/Akt pathway. It hinders Akt phosphorylation, relieving its inhibition on FoxO3a. This allows FoxO3a to bind to the DEFB20 promoter, promoting transcription. This indirect activation leads to increased β-defensin 20 expression, bolstering the innate immune response. | ||||||
Resveratrol | 501-36-0 | sc-200808 sc-200808A sc-200808B | 100 mg 500 mg 5 g | $60.00 $185.00 $365.00 | 64 | |
Resveratrol activates β-defensin 20 indirectly by modulating the Nrf2/ARE pathway. Acting as an antioxidant, it enhances Nrf2 translocation, promoting its binding to the ARE element in the DEFB20 promoter. This up-regulation of β-defensin 20 contributes to antimicrobial defense. | ||||||
5-Azacytidine | 320-67-2 | sc-221003 | 500 mg | $280.00 | 4 | |
5-Azacytidine, a DNA methyltransferase inhibitor, directly activates β-defensin 20. By demethylating the DEFB20 promoter region, it alleviates epigenetic repression, allowing for enhanced transcription. This epigenetic modulation results in increased β-defensin 20 expression, contributing to innate immunity against microbial threats. | ||||||
α-Lipoic Acid | 1077-28-7 | sc-202032 sc-202032A sc-202032B sc-202032C sc-202032D | 5 g 10 g 250 g 500 g 1 kg | $68.00 $120.00 $208.00 $373.00 $702.00 | 3 | |
Alpha-lipoic acid activates β-defensin 20 through the Nrf2/ARE pathway. As an antioxidant, it promotes Nrf2 release from Keap1 inhibition, facilitating its translocation to the DEFB20 promoter's ARE element. This up-regulation strengthens the antimicrobial function of β-defensin 20. |