Mac-3 Activators
Mac-3, also known as lysosomal-associated membrane protein 2 (LAMP-2), is a type I membrane protein primarily recognized for its role within the lysosomal membrane. As an integral part of the lysosomal membrane, Mac-3 is pivotal in maintaining lysosomal integrity, enabling autophagy, and participating in the cellular immune response. The expression of Mac-3 is a critical factor in the biology of macrophages, where it serves as a marker for the activation status of these cells. In the dynamic cellular environment, the transcriptional regulation of Mac-3 is subject to modulation by various intracellular and extracellular signals. The inducers of Mac-3 expression are diverse, encompassing a wide range of biological compounds that can stimulate its expression under different physiological and pathological conditions.
Certain compounds have been identified to induce the expression of Mac-3, and these activators can initiate complex intracellular signaling cascades that culminate in the upregulation of this protein. For instance, lipopolysaccharide (LPS), a component of the outer membrane of Gram-negative bacteria, is a well-known activator that can provoke a robust immune response, leading to the upregulation of Mac-3 in macrophages. This upregulation is part of the body's natural response to infection. Similarly, the compound phorbol 12-myristate 13-acetate (PMA) is a potent activator that targets protein kinase C (PKC), triggering a series of events that promote the expression of Mac-3. Other substances, such as retinoic acid and vitamin D3 derivatives, interact with their respective nuclear receptors to stimulate Mac-3 transcription. Environmental stressors, like arsenic trioxide and cadmium chloride, can induce oxidative stress mechanisms, which, in turn, stimulate the upregulation of protective cellular proteins including Mac-3. Moreover, compounds that alter the epigenetic landscape, such as sodium butyrate, can also lead to increased expression of Mac-3 by rendering the chromatin structure more open to transcriptional machinery. These activators each play a role in the intricate network of cellular signaling that governs the expression of lysosomal components like Mac-3, highlighting the diverse regulatory mechanisms that cells employ to adapt to various stimuli and maintain homeostasis.
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| Product Name | CAS # | Catalog # | QUANTITY | Price | Citations | RATING |
|---|---|---|---|---|---|---|
Lipopolysaccharide, E. coli O55:B5 | 93572-42-0 | sc-221855 sc-221855A sc-221855B sc-221855C | 10 mg 25 mg 100 mg 500 mg | $98.00 $171.00 $425.00 $1560.00 | 12 | |
Lipopolysaccharide (LPS) can initiate a robust immune response, particularly in macrophages, by binding to the CD14/TLR4/MD2 receptor complex, which leads to the activation of NF-κB signaling and subsequent upregulation of Mac-3 as part of the host defense mechanism. | ||||||
PMA | 16561-29-8 | sc-3576 sc-3576A sc-3576B sc-3576C sc-3576D | 1 mg 5 mg 10 mg 25 mg 100 mg | $41.00 $132.00 $214.00 $500.00 $948.00 | 119 | |
PMA serves as a potent activator for protein kinase C (PKC). This enzyme plays a crucial role in the signal transduction pathways that govern cell proliferation, differentiation, and gene expression, including the upregulation of Mac-3 in response to external stimuli. | ||||||
Retinoic Acid, all trans | 302-79-4 | sc-200898 sc-200898A sc-200898B sc-200898C | 500 mg 5 g 10 g 100 g | $66.00 $325.00 $587.00 $1018.00 | 28 | |
Retinoic acid, through its role in cell differentiation and proliferation, can stimulate the retinoic acid receptors and retinoid X receptors, which bind to retinoic acid response elements in the DNA, leading to the upregulation of genes like Mac-3. | ||||||
1α,25-Dihydroxyvitamin D3 | 32222-06-3 | sc-202877B sc-202877A sc-202877C sc-202877D sc-202877 | 50 µg 1 mg 5 mg 10 mg 100 µg | $220.00 $645.00 $1000.00 $1500.00 $440.00 | 32 | |
This hormonally active form of vitamin D3 interacts with its nuclear receptor, which then binds to vitamin D response elements in the genome, initiating transcriptional activation of target genes including Mac-3, particularly in immune cells. | ||||||
Dexamethasone | 50-02-2 | sc-29059 sc-29059B sc-29059A | 100 mg 1 g 5 g | $91.00 $139.00 $374.00 | 36 | |
Dexamethasone, by binding to glucocorticoid receptors, can initiate a cascade of gene expression changes, including the upregulation of genes involved in anti-inflammatory responses, which may encompass the increased expression of Mac-3. | ||||||
Arsenic(III) oxide | 1327-53-3 | sc-210837 sc-210837A | 250 g 1 kg | $89.00 $228.00 | ||
Arsenic trioxide can induce oxidative stress, which activates transcription factors such as NF-κB and AP-1. These factors can bind to DNA and stimulate the expression of Mac-3 as part of the cellular defense mechanism against oxidative damage. | ||||||
Sodium Butyrate | 156-54-7 | sc-202341 sc-202341B sc-202341A sc-202341C | 250 mg 5 g 25 g 500 g | $31.00 $47.00 $84.00 $222.00 | 19 | |
Sodium butyrate acts as a histone deacetylase inhibitor, leading to the unwinding of DNA from histone proteins, thereby making the chromatin more accessible for transcription factors that can stimulate Mac-3 gene transcription. | ||||||
Bafilomycin A1 | 88899-55-2 | sc-201550 sc-201550A sc-201550B sc-201550C | 100 µg 1 mg 5 mg 10 mg | $98.00 $255.00 $765.00 $1457.00 | 280 | |
Bafilomycin A1 disrupts normal lysosomal function by inhibiting the vacuolar H+ ATPase, which can lead to a compensatory upregulation of lysosomal proteins, including Mac-3, to maintain cellular homeostasis. | ||||||
Chloroquine | 54-05-7 | sc-507304 | 250 mg | $69.00 | 2 | |
Chloroquine raises lysosomal pH, which disrupts proteolysis and autophagy. Cells may respond by enhancing the expression of lysosomal proteins such as Mac-3 to restore lysosomal function. | ||||||
Etoposide (VP-16) | 33419-42-0 | sc-3512B sc-3512 sc-3512A | 10 mg 100 mg 500 mg | $51.00 $231.00 $523.00 | 63 | |
Etoposide induces DNA strand breaks via inhibition of topoisomerase II, leading to cell cycle arrest and apoptosis. This DNA damage response can upregulate Mac-3 expression as part of the cellular attempt to cope with genotoxic stress. | ||||||