Bcl-2 Family Activator

Triptophenolide (Hypolide) is a colorless crystal isolated from the ethyl acetate extract of Tripterygium wilfordii. Triptophenolide is an orally active pan‑antagonist of the androgen receptor (AR) with an IC₅₀ of 467 nM against human wild‑type AR. Triptophenolide reduces AR expression, inhibits AR nuclear translocation, downregulates prostate‑specific antigen mRNA levels, and suppresses the growth of AR‑positive prostate cancer cells. Triptophenolide shows anti-tumor effects against breast cancer by inhibiting cell proliferation and migration, inducing G1-phase arrest and apoptosis, repressing xenograft tumor growth. Triptophenolide inhibits pyroptosis, alleviates tissue inflammation, and ameliorates synovial injury. Triptophenolide can be used for the study of prostate cancer, rheumatoid arthritis and breast cancer.

Methyl protodioscin (NSC-698790; Smilax saponin B) is a multi-target, selective, steroidal diglycoside inhibitor with antitumor activity that induces cell cycle arrest. The mechanism of action of Methyl protodioscin is complex, involving the induction of G2/M cell cycle arrest, regulation of the Bcl-2/Bax apoptotic pathway, inhibition of the Akt1/c-Myc axis and MAPK/ERK signaling, while simultaneously downregulating ADAM15 and inducing FOXO1 to reduce cholesterol synthesis. It also inhibits the JNK/c-Jun pathway, reducing the production of inflammatory factors (IL-6, TNF-α). Methyl protodioscin exhibits significant antitumor (inhibiting proliferation, migration, invasion, and inducing apoptosis), anti-inflammatory, and anti-restenosis activities. Methyl protodioscin can be used in research on lung cancer, prostate cancer, pancreatic cancer, and other tumors, as well as inflammatory diseases such as airway inflammation and enteritis.

SYM 2081 is a kainate receptor agonist. SYM 2081 is a substrate of EAAT1 (K_m of 54 μM). SYM 2081 inhibits EAAT2-mediated glutamate transport (K_b is 3.4 μM in Xenopus oocytes), modulates Apoptotic signaling pathways (increases Bcl-2 and decreases Bax/caspase-3 expression). SYM 2081 exhibits neuroprotective activity. SYM 2081 can be used in the study of hypoxic-ischemic brain damage and inflammatory or neuropathic pain.

NPS 2390 is an allosteric antagonist of calcium-sensing receptor (CaSR) and mGluR1/5. NPS 2390 inhibits the PI3K/Akt/mTOR signaling pathway, reduces hypoxia-induced intracellular calcium elevation, decreases the expression of autophagy (autophagy) proteins, regulates the expression of phenotypic marker proteins, and inhibits the proliferation of pulmonary artery smooth muscle cells. NPS 2390 attenuates the endogenous apoptosis (apoptosis) pathway, increases the expression level of Bcl-2, downregulates the expression levels of Bax, cytochrome c and caspase-3, alleviates cerebral edema and improves neurological function in rat models. NPS 2390 can be used in studies related to hypoxic pulmonary hypertension, traumatic brain injury, stroke and pain.

Ginsenoside Rh4 is a rare saponin obtained from Panax notoginseng. Ginsenoside Rh4 activates Bax, caspase 3, caspase 8, and caspase 9. Ginsenoside Rh4 also induces autophagy.

PUMA BH3 is a p53 upregulated modulator of apoptosis (PUMA) BH3 domain peptide, acts as a direct activator of Bak, with a K_d of 26 nM.

Bufarenogin induces intrinsic apoptosis via Bax and ANT cooperation.

BAM7 is a direct and selective activator of proapoptotic BAX with an IC₅₀ of 3.3 μM.

(E)-Ferulic acid-d₃ is the deuterium labeled (E)-Ferulic acid. (E)-Ferulic acid is a isomer of Ferulic acid which is an aromatic compound, abundant in plant cell walls. (E)-Ferulic acid causes the phosphorylation of β-catenin, resulting in proteasomal degradation of β-catenin and increases the expression of pro-apoptotic factor Bax and decreases the expression of pro-survival factor survivin. (E)-Ferulic acid shows a potent ability to remove reactive oxygen species (ROS) and inhibits lipid peroxidation. (E)-Ferulic acid exerts both anti-proliferation and anti-migration effects in the human lung cancer cell line H1299.

Flurochloridone (R-40244) is an orally active herbicide and an inducer of ER stress, apoptosis, and cytotoxicity. Flurochloridone upregulates GRP78 and activates the PERK-eIF2α-ATF4 UPR axis, ATF6, CHOP, Bax, and Bim. Flurochloridone decreases Akt, p-Akt, GSK3β, and p-GSK3β levels, and induces ROS, oxidative stress, γ-glutamyl cycle activation, and GSH accumulation. Flurochloridone inhibits mitochondrial respiration and ATP production while enhancing glycolysis and cell viability inhibition. Flurochloridone inhibits spermatogonial proliferation, spermatocyte meiosis, and sperm mitochondrial membrane potential, and induces Sertoli cell apoptosis and mitochondrial damage. Flurochloridone non-competitively binds phytoene desaturase, blocking phytoene desaturation and carotenoid synthesis, leading to leaf bleaching and phytotoxicity. Flurochloridone can be used for research on male reproductive toxicity, hepatotoxicity, and as a herbicide.

GL0388 is a Bax activator that results in Bax insertion into mitochondrial membrane. GL0388 shows antiproliferative activities against various cancer cells, with IC₅₀s of 0.299-1.57 μM. GL0388 activates Bax and induce Bax-mediated apoptosis. GL0388 suppresses breast cancer xenograft tumor growth in vivo.

PROTAC EGFR degrader 14 is a EGFR PROTAC degrader, with a DC₅₀ of 2.9 nM against EGFR^{L858R/T790M/C797S}. PROTAC EGFR degrader 14 forms a stable ternary complex by bridging the ATP-binding pocket of the target protein EGFR with VHL E3 ubiquitin ligase, induces efficient and specific degradation of EGFR mutants via the ubiquitin-proteasome system, and ultimately induces cell cycle arrest and apoptosis. PROTAC EGFR degrader 14 can be used in studies related to non-small cell lung cancer carrying the EGFR^C797S drug-resistant mutation.

Apoptotic agent-3 (compound 15f) promotes apoptosis through the potential mitochondria-mediated Bcl-2/Bax pathway and activation of the Caspase 3 pathway. Apoptotic agent-3 exhibits anti-proliferative activities and can be used for cancer research.

SACLAC, a Ceramide analog, is a potent and covalent acid ceramidase (ASAH1; AC) inhibitor with a K_i of 97.1 nM. SACLAC effectively blocks AC activity and induces a decrease in sphingosine 1-phosphate (S1P) and total ceramide levels. SACLAC reduces the levels of splicing factor SF3B1 and alternative Mcl-1 mRNA splicing, increases pro-apoptotic Mcl-1S levels to induce apoptosis in acute myeloid leukemia (AML) cells. SACLAC reduces the leukemic burden in human AML xenograft mouse models.

Quinpirole (LY 171555; (-)-LY 141865) is a D2/D3 dopamine receptor agonist and a CaV1.3 calcium channel modulator. Quinpirole normalizes dendritic spine density in dopamine-depleted striatum, upregulates the protein expression of BCL2 and GluR2, downregulates the protein expression of BAX, and delays the onset of seizures. Quinpirole enhances learning and memory, inhibits neuronal apoptosis (apoptosis), and induces anxiety-like, stereotyped, and compulsive behaviors. Quinpirole disrupts prepulse inhibition in rhesus monkeys, enhances the activity of paraventricular thalamic neurons to promote recovery from Isoflurane anesthesia, and alters the composition of the gut microbiota in rats. Quinpirole can be used in research related to dyskinesia, pain, epilepsy, and neurological disorders including anxiety disorder, obsessive-compulsive disorder, and schizophrenia.

CYD-4-61 is a novel Bax activator used for breast cancer research. CYD-4-61 inhibits triple-negative breast cancer MDA-MB-231 and ER-positive breast cancer MCF-7 cell lines proliferation. CYD-4-61 activates Bax protein to induce cytochrome c release and regulate apoptotic biomarkers, leading to cancer cell apoptosis.

Nodularin is a hepatotoxin, tumor promoter, and protein phosphatase inhibitor. Nodularin induces apoptosis (apoptosis) in normal cells (including caspase activation, upregulation of Bcl-XS, and upregulation of BAX/P53), triggers hyperphosphorylation of the MAPK/ERK, mTOR/S6K and p38 MAPK signaling pathways, and induces oxidative stress, endoplasmic reticulum membrane instability, peroxisome proliferation and increased lysosomal enzyme activity. Nodularin promotes DEN (HY-N7434)-initiated hepatocyte proliferation and adenoma formation, and inhibits proliferation, phagocytosis and chemotaxis of normal lymphocytes, oocyte maturation and vitellogenesis, as well as angiogenesis. Nodularin exhibits hepatotoxicity, reproductive and endocrine toxicity, and embryonic developmental toxicity in various animal models. Nodularin can be used in studies related to liver cancer, hepatotoxicity and reproductive endocrine toxicity.

WX2-43 is a PRMT5-KLF4 inhibitor (K_d of 11.0 nM). WX2-43 binds to the region between amino acids L400-M500 on PRMT5. WX2-43 efficiently intercepts the interaction between KLF4 and PRMT5, and blocks KLF4 methylation. WX2-43 decreases p21 levels and increases Bax levels. WX2-43 suppresses triple negative breast tumor progression. WX2-43 can be used in the research of triple-negative breast cancer and colorectal cancer.

Hawthorn Extract is an orally active hawthorn extract. Hawthorn Extract decreases Bax expression and increases Bcl-2 expression in the aorta. Hawthorn Extract regulates the AMPK signaling pathway, induces apoptosis, enhances the hepatic antioxidant system, and ameliorates symptoms of liver injury, inflammation and cancer. Hawthorn Extract reduces plasma levels of pro-inflammatory factors, increases plasma levels of anti-inflammatory adiponectin, and alleviates atherosclerotic plaque lesions in the aorta. Hawthorn Extract improves symptoms associated with chronic heart failure. Hawthorn Extract inhibits FMLP-induced superoxide anion production, Elastase release, ILB₄ generation and calcium signaling in neutrophils, and also reduces LPS-induced cytokine production in neutrophils. Hawthorn Extract induces autophagy and inhibits the proliferation of intestinal stem cells. Hawthorn Extract can be used in research related to atherosclerosis, hepatitis, alcoholic liver disease, non-alcoholic fatty liver disease, hepatocellular carcinoma, chronic heart failure and hypotension.

BBR-BODIPY is a fluorescent probe that allows screening its interaction with the targeted cells. BBR-BODIPY induces apoptosis and changes the expression of apoptosis-related proteins.