2. Signaling Pathways
  3. Autophagy
  4. Autophagy

Autophagy

Autophagy

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Autophagy is a conserved cellular degradation and recycling process in the lysosome. In mammalian cells, there are three primary types of autophagy: microautophagy, macroautophagy, and chaperone-mediated autophagy (CMA). Microphagy captures cargoes by means of invaginations or protrusions of the lysosomal membrane directly, CMA uses chaperones to identify cargo proteins and then unfolds and transfers them into the lysosomal, while macroautophagy sequesters cargo by autophagosomes-de novo synthesized of double-membrane vesicles-and subsequently transport it to the lysosome.

Macroautophagy is the best studied and it occurs at a low level constitutively and can also be further induced under stress conditions, such as nutrient or energy starvation with a salient feature of autophagy protein degradation. Stress-induced macrophagy plays an important role in protein catabolism with another key protein degradation pathway, the ubiquitin–proteasome system (UPS).

As the study progressed, autophagy gains its importance under basal, nutrient-rich conditions, and is now recognized as a critical housekeeping pathway in catabolism of diverse cellular constituents, such as protein aggregates (aggrephagy), lipid droplets (lipophagy), iron complex (Ferritinophagy) and carbohydrate. Except for macromolecules, autophagy can also target several organelles and structures, such as mitochondria (mitophagy), peroxisome (pexophagy), endoplasmic reticulum (reticulophagy or ER-phagy), ribosome (ribophagy), spermatozoon-inherited organelles following fertilization (allophagy), secretory granules within pancreatic cells (zymophagy) and intracellular pathogens (xenophagy).

Autophagy and its dysfunction are associated with a variety of human pathologies, including ageing, cancer, neurodegenerative disease, heart disease and metabolic diseases, such as diabetes. Plenty of drugs and natural products are involved in autophagy modulation through multiple signaling pathways. Small molecules that can regulate autophagy seem to have great potential to intervene such diseases in animal models or clinical courses.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-W012722
    4-Methyl-2-oxopentanoic acid
    		99.51%
    4-Methyl-2-oxopentanoic acid (α-Ketoisocaproic acid) is a metabolite of L-leucine and is involved in energy metabolism. 4-Methyl-2-oxopentanoic acid increases endoplasmic reticulum stress, promotes lipid accumulation in preadipocytes and insulin resistance by impairing mTOR and autophagy signaling pathways. 4-Methyl-2-oxopentanoic acid also causes oxidative damage, leading to cognitive deficits, inhibits α-ketoglutarate dehydrogenase activity, acts as an oxidative phosphorylation uncoupler and metabolic inhibitor. 4-Methyl-2-oxopentanoic acid acts as a nutrient signal and stimulates skeletal muscle protein synthesis. 4-Methyl-2-oxopentanoic acid can be used in the study of maple syrup urine disease.
    4-Methyl-2-oxopentanoic acid
  • HY-10201S
    Sorafenib-d3
    		Inducer 99.57%
    Sorafenib-d3 (Donafenib), a deuterated compound of Sorafenib, is the first deuterium-generation tumor suppressor small molecule. Sorafenib is a multikinase inhibitor IC50s of 6 nM, 20 nM, and 22 nM for Raf-1, B-Raf, and VEGFR-3, respectively.
    Sorafenib-d<sub>3</sub>
  • HY-112483
    QX77
    		Inducer 99.48%
    QX77 is a chaperone-mediated autophagy (CMA) activator and upregulates LAMP2A expression in vitro. QX77 induces Rab11 upregulation, rescues Rab11 down-regulation and trafficking deficiency in cystinotic cells. QX77 can impede self-renewal and promote differentiation of ES cells.
    QX77
  • HY-50866
    NVP-AEW541
    		Inducer 99.92%
    NVP-AEW541 (AEW541 ) is an orally active inhibitor of the insulin-like growth factor 1 receptor (IGF-1R) with an IC50 value of 0.15 μM. NVP-AEW541 also inhibits InsR, IC50 with a value of 0.14 μM. NVP-AEW541 has antitumor activity.
    NVP-AEW541
  • HY-107500
    UVI 3003
    		99.57%
    UVI 3003 is a highly selective antagonist of retinoid X receptor (RXR), and inhibits xenopus and human RXRα in Cos7 cells, with IC50s of 0.22 and 0.24 μM, respectively.
    UVI 3003
  • HY-10328
    Neflamapimod
    		99.32%
    Neflamapimod (VX-745) is a potent, blood-brain barrier penetrant, highly selective inhibitor of p38α inhibitor with an IC50 for p38α of 10 nM and for p38β of 220 nM. Neflamapimod (VX-745) possesses anti-inflammatory activity.
    Neflamapimod
  • HY-103319
    Calmidazolium chloride
    		99.94%
    Calmidazolium chloride (R 24571) is a calmodulin antagonist, antagonizing CaM-dependent phosphodiesterase and calmodulin-induced activation of erythrocyte Ca2+-transporting ATPase with IC50s of 0.15 and 0.35 μM, respectively. Also in anti-cancer research. Calmidazolium binds to calmodulin with a Kd of 3 nM.
    Calmidazolium chloride
  • HY-155747
    FDW028
    		Inhibitor 99.51%
    FDW028 a potent and highly selective FUT8 inhibitor. FUT8 exhibits potent anti-tumor activity by defucosylation and impelling lysosomal degradation of B7-H3 through the chaperone-mediated autophagy (CMA) pathway. FDW028 can be used for metastatic colorectal cancer (mCRC) research.
    FDW028
  • HY-10261A
    Afatinib dimaleate
    		Inducer 99.74%
    Afatinib (BIBW 2992) dimaleate is an orally active, potent and irreversible dual specificity inhibitor of ErbB family (EGFR and HER2), with IC50 values of 0.5 nM, 0.4 nM, 10 nM and 14 nM for EGFRwt, EGFRL858R, EGFRL858R/T790M and HER2, respectively. Afatinib dimaleate can be used for the research of esophageal squamous cell carcinoma (ESCC), non-small cell lung cancer (NSCLC) and gastric cancer.
    Afatinib dimaleate
  • HY-14600
    Rosiglitazone maleate
    		Inducer 99.73%
    Rosiglitazone maleate (BRL 49653C) is a potent and selective activator of PPARγ, with EC50s of 30 nM, 100 nM and 60 nM for PPARγ1, PPARγ2, and PPARγ, respectively, and a Kd of appr 40 nM for PPARγ; Rosiglitazone maleate is also an modulator of TRP channels, inhibits TRP melastatin 2 (TRPM2), TRPM3 and activates TRP canonical 5 (TRPC5).
    Rosiglitazone maleate
  • HY-15888
    PTC-209
    		Inducer 99.76%
    PTC-209 is a specific BMI-1 inhibitor with an IC50 of 0.5 μM in HEK293T cell line. PTC-209 irreversibly impairs colorectal cancer-initiating cells (CICs). PTC-209 shows potent anti-myeloma activity and impairs the tumor microenvironment.
    PTC-209
  • HY-N0047
    Polyphyllin I
    		Inducer 99.89%
    Polyphyllin I is a bioactive constituent extracted from Paris polyphylla, has strong anti-tumor activity. Polyphyllin I is an activator of the JNK signaling pathway and is an inhibitor of PDK1/Akt/mTOR signaling. Polyphyllin I induces autophagy, G2/M phase arrest and apoptosis.
    Polyphyllin I
  • HY-N0674
    Dehydrocorydaline
    		99.77%
    Dehydrocorydaline (13-Methylpalmatine) is an alkaloid that regulates protein expression of Bax, Bcl-2; activates caspase-7, caspase-8, and inactivates PARP. Dehydrocorydaline elevates p38 MAPK activation. Anti-inflammatory and anti-cancer activities. Dehydrocorydaline shows strong anti-malarial effects (IC50=38 nM), and low cytotoxicity (cell viability > 90%) using P. falciparum 3D7 strain.
    Dehydrocorydaline
  • HY-N0108
    Physcion
    		99.00%
    Physcion (Parietin), an anthraquinone derivative derived from the traditional Chinese medicine rhubarb, is an effective oral active 6-phosphogluconate dehydrogenase inhibitor with blood-brain barrier permeability, with IC50 and Kd values of 38.5 μM and 26.0 μM, respectively. Additionally, Physcion is an inhibitor of the <>bTLR4/NF-κB signaling pathway, exhibiting anti-inflammatory, antibacterial, and anticancer effects, and can induce Apoptosis and Autophagy in cancer cells.
    Physcion
  • HY-B0715
    Pentoxifylline
    		Inducer 99.92%
    Pentoxifylline (BL-191), a haemorheological agent, is an orally active non-selective phosphodiesterase (PDE) inhibitor, with immune modulation, anti-inflammatory, hemorheological, anti-fibrinolytic and anti-proliferation effects. Pentoxifylline can be used for the research of peripheral vascular disease, cerebrovascular disease and a number of other conditions involving a defective regional microcirculation.
    Pentoxifylline
  • HY-17473
    Embelin
    		Inducer 99.01%
    Embelin (Embelic acid), a potent, nonpeptidic XIAP inhibitor (IC50=4.1 μM), inhibits cell growth, induces apoptosis, and activates caspase-9 in prostate cancer cells with high levels of XIAP. Embelin blocks NF-kappaB signaling pathway leading to suppression of NF-kappaB-regulated antiapoptotic and metastatic gene products. Embelin also induces autophagic and apoptotic cell death in human oral squamous cell carcinoma cells.
    Embelin
  • HY-P2260
    Tat-beclin 1
    		Inducer 99.93%
    Tat-beclin 1, a peptide derived from a region of the autophagy protein (beclin 1), is a potent inducer of autophagy and interacts with negative regulator of autophagy, GAPR-1 (GLIPR2). Tat-beclin 1 decreases the accumulation of polyglutamine expansion protein aggregates and the replication of several pathogens (including HIV-1) in vitro, and reduces mortality in mice infected with chikungunya (CHIKV) or West Nile virus (WNV).
    Tat-beclin 1
  • HY-N0693
    Schisandrin A
    		Inducer 99.89%
    Schisandrin A inhibits CYP3A activity with an IC50 of 6.60 μM and Ki of 5.83 μM, respectively.
    Schisandrin A
  • HY-N0890
    Tubeimoside I
    		Activator 99.96%
    Tubeimoside I is an orally active HSPD1 inhibitor. Tubeimoside I inhibits NF-κB, MAPK, as well as regulates eNOS-VEGF. Tubeimoside I induces cytoprotective Autophagy via an Akt-mediated pathway. Tubeimoside I inhibits proinflammatory cytokine (IL-6 and IL-1β) production. Tubeimoside I exhibits anti-inflammatory activities. Tubeimoside I promotes angiogenesis and improves sepsis symptoms. Tubeimoside I is used in the research of inflammatory diseases, various cancers, sepsis and ischemic diseases.
    Tubeimoside I
  • HY-N0013
    Vitexin
    		99.48%
    Vitexin is a c-glycosylated flavone, and is found in various medicinal plants species such as Trigonella foenum-graecum Linn. Vitexin has a wide range of pharmacological effects, including anti-oxidant, anti-cancer, anti-inflammatory, anti-hyperalgesic, and neuroprotective effects.
    Vitexin
Cat. No. Product Name / Synonyms Application Reactivity
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