2. Signaling Pathways
  3. Apoptosis
  4. Caspase
  5. Caspase 3 Isoform

Caspase 3

Caspase 3 is a central executioner caspase in apoptosis, where initiator caspase 9 activates executioner caspases 3 and 7 by proteolysis[1]. Mechanistically, caspase 3 cleaves caspase 9 at Asp330 and enhances apoptosis by relieving XIAP-mediated inhibition, rather than directly activating caspase 9[1]. This places caspase 3 within apoptosome-linked feedback control and inhibitor-of-apoptosis regulation, while preserving a distinct functional profile from caspase 7[1][2]. Compared with caspase 7, caspase 3 can cleave caspase 9 under physiologically relevant conditions, and engineered activation studies show that caspase 3 or caspase 7, but not caspase 6 alone, is sufficient to induce apoptosis[1][2]. In disease models, caspase 3 and caspase 7 deletion did not reduce infarct size or ventricular remodeling after transient myocardial ischemia-reperfusion, limiting assumptions about canonical caspase-dependent apoptosis in adult cardiomyocytes[3]. In prostate cancer samples, procaspase 3 and cleaved caspase 3 predicted biochemical progression after radical prostatectomy, supporting their use as apoptosis-related tumor markers[4]. For experimental applications, caspase 3 research benefits from isoform-aware probes because common DEVD-based peptide inhibitors and substrates cannot reliably distinguish caspase 3 from caspase 7[5].

Cat. No. Product Name Effect Purity
  • HY-12305
    Q-VD-OPh
    		Inhibitor 99.92%
    Q-VD-OPh is an irreversible pan-caspase inhibitor with potent antiapoptotic properties; inhibits caspase 7 with an IC50 of 48 nM and 25-400 nM for other caspases including caspase 1, 3, 8, 9, 10, and 12. Q-VD-OPh can inhibits HIV infection. Q-VD-OPh is able to cross the blood-brain barrier.
  • HY-B1081A
    Oxidopamine hydrobromide
    		Activator 99.42%
    Oxidopamine (6-OHDA) hydrobromide is an antagonist of the neurotransmitter dopamine. Oxidopamine hydrobromide is a widely used neurotoxin and selectively destroys dopaminergic neurons. Oxidopamine hydrobromide promotes COX-2 activation, leading to PGE2 synthesis and pro-inflammatory cytokine IL-1β secretion. Oxidopamine hydrobromide can be used for the research of Parkinson’s disease (PD), attention-deficit hyperactivity disorder (ADHD), and Lesch-Nyhan syndrome.
  • HY-13755
    Sulforaphane
    		Inhibitor 99.75%
    Sulforaphane is an orally active inducer of the Keap1/Nrf2/ARE pathway. Sulforaphane promotes the transcription of tumor-suppressing proteins and effectively inhibits the activity of HDACs. Through the activation of the Keap1/Nrf2/ARE pathway and further induction of HO-1 expression, Sulforaphane protects the heart. Sulforaphane suppresses high glucose-induced pancreatic cancer through AMPK-dependent signal transmission. Sulforaphane exhibits both anticancer and anti-inflammatory properties.
  • HY-19696
    Tauroursodeoxycholate
    		Inhibitor 99.93%
    Tauroursodeoxycholate (Tauroursodeoxycholic acid) is an orally active endoplasmic reticulum (ER) stress inhibitor. Tauroursodeoxycholate significantly reduces expression of apoptosis molecules, such as caspase-3 and caspase-12. Tauroursodeoxycholate also inhibits ERK.
  • HY-12466
    Z-DEVD-FMK
    		Inhibitor 98.0%
    Z-DEVD-FMK is a specific and irreversible caspase-3 inhibitor with an IC50 of 18 μM.
  • HY-150280
    Ironomycin
    		Activator 99.85%
    Ironomycin is a derivative of Salinomycin (HY-15597). Ironomycin exhibits selective inhibitory activity against mantle cell lymphoma (MCL) cells. Ironomycin blocks the cell cycle and induces apoptosis and ferroptosis. Ironomycin induces double-strand DNA breaks and activates the unfolded protein response (UPR), particularly the IRE1α signaling pathway accumulation. The combination of Ironomycin with Ibrutinib (HY-10997) shows a synergistic effect. Ironomycin can be used for the study of MCL.
  • HY-184106
    HSP70-IN-9
    		Activator
    HSP70-IN-9 is a Hsp70 inhibitor. HSP70-IN-9 activates Caspase-3 and -7. HSP70-IN-9 exerts anticancer effects against acute myeloid leukemia. HSP70-IN-9 can be used for the research of acute myeloid leukemia.
  • HY-185121
    PROTAC CDK2/4/6 Degrader-2
    		Inhibitor
    PROTAC CDK2/4/6 Degrader-2 is a CDK2/4/6 PROTAC degrader. PROTAC CDK2/4/6 Degrader-2. PROTAC CDK2/4/6 Degrader-2 can be converted into the prodrug PROTAC CDK2/4/6 Degrader-1 (HY-171826) through a one-step reaction with chloromethyl pivalate. PROTAC CDK2/4/6 Degrader-2 degrades CDK2/4/6 and their complex in malignant melanomas cells. PROTAC CDK2/4/6 Degrader-2 induces cell cycle arrest and cell apoptosis in various cancer cells, in particular for melanomas. PROTAC CDK2/4/6 Degrader-2 can be used for malignant melanomas research.
  • HY-B1081
    Oxidopamine hydrochloride
    		Activator 99.91%
    Oxidopamine (6-OHDA) hydrochloride is an antagonist of the neurotransmitter dopamine. Oxidopamine hydrochloride is a widely used neurotoxin and selectively destroys dopaminergic neurons. Oxidopamine hydrochloride promotes COX-2 activation, leading to PGE2 synthesis and pro-inflammatory cytokine IL-1β secretion. Oxidopamine hydrochloride can be used for the research of Parkinson’s disease (PD), attention-deficit hyperactivity disorder (ADHD), and Lesch-Nyhan syndrome.
  • HY-13902
    Berzosertib
    		Activator 99.67%
    Berzosertib (VE-822) is an orally active, CNS-penetrant, and selective ATR kinase inhibitor. Berzosertib blocks ATR kinase activity, abrogates G2/M cell cycle checkpoint, impairs DNA damage repair. Berzosertib induces apoptosis, inhibnits conlony migration, inhibits cell proliferation, and activates cGAS-STING axes in cancer cells. Berzosertib can be used for the research of cancers, such as head and neck squamous cell carcinoma, and colorectal cancer.
  • HY-N0171A
    Beta-Sitosterol (purity>98%)
    		99.74%
    Beta-Sitosterol (purity>98%) is orally active. Beta-Sitosterol exhibits multiple activities, including anti-inflammatory, anticancer, antioxidant, antimicrobial, antidiabetic, antioxidant enzyme, and analgesic. Beta-Sitosterol inhibits inflammation and impaired adipogenesis in bovine mammary epithelial cells by reducing levels of ROS, TNF-α, IL-1β, and NF-κB p65 and restoring the activity of the HIF-1α/mTOR signaling pathway. Beta-Sitosterol induces apoptosis in cancer cells through ROS-mediated mitochondrial dysregulation and p53 activation. Beta-Sitosterol exerts its anticancer effects in cancer cells by activating caspase-3, caspase-8, and caspase-9, mediating PARP inactivation, MMP loss, altered Bcl-2-Bax ratio, and cytochrome c release. Beta-Sitosterol modulates macrophage polarization and reduces rheumatoid inflammation in mice. Beta-Sitosterol inhibits tumor growth in multiple mouse cancer models. Beta-Sitosterol can be used in the research of arthritis, lung cancer, breast cancer and other cancers, diabetes, etc.
  • HY-19696A
    Tauroursodeoxycholate sodium
    		Inhibitor 98.40%
    Tauroursodeoxycholate (Tauroursodeoxycholic acid; TUDCA) sodium is an endoplasmic reticulum (ER) stress inhibitor. Tauroursodeoxycholate significantly reduces expression of apoptosis molecules, such as caspase-3 and caspase-12. Tauroursodeoxycholate also inhibits ERK.
  • HY-121320
    Raptinal
    		Activator 99.54%
    Raptinal, a agent that directly activates caspase-3, initiates intrinsic pathway caspase-dependent apoptosis. Raptinal is able to rapidly induce cancer cell death by directly activating the effector caspase-3, bypassing the activation of initiator caspase-8 and caspase-9.
  • HY-B1670A
    (-)-Isoproterenol hydrochloride
    		Inhibitor 99.97%
    (-)-Isoproterenol (Levisoprenalinel) hydrochloride is the R-isomer of Isoproterenol. (-)-Isoproterenol hydrochloride can reduce the cleavage of caspase 3 and TNFα levels in retinal endothelial cells (REC). (-)-Isoproterenol hydrochloride can be used for the study of diabetic retinopathy.
  • HY-164388
    Z-VAD
    		Inhibitor 99.93%
    Z-VAD is an irreversible, broad-spectrum pan-caspase inhibitor that can inhibit a variety of caspases including caspase-3, -6, -7, -8, -9, etc. (with a weaker inhibitory effect on caspase-2). Z-VAD can block apoptosis signaling pathways, induce autophagy and necrosis in tumor cells, and has anti-angiogenic activity. Z-VAD can enhance the sensitivity of breast cancer and lung cancer cells to radiotherapy in vitro and in vivo, and prolong the growth delay of tumor xenograft models. Z-VAD is well tolerated and is mainly used in research related to cancer radiosensitization and cell death pathway regulation.
  • HY-P1740
    RGD peptide (GRGDNP)
    		Activator 99.83%
    RGD peptide (GRGDNP) is an inhibitor of integrin-ligand interactions. RGD peptide (GRGDNP) competitively inhibits α5β1 binding with extracellular matrice (ECM). RGD peptide (GRGDNP) promotes apoptosis through activation of conformation changes that enhance pro-caspase-3 activation and autoprocessing. RGD peptide (GRGDNP) plays an important role in cell adhesion, migration, growth, and differentiation.
  • HY-P1001
    Ac-DEVD-CHO
    		Inhibitor 99.76%
    Ac-DEVD-CHO is a Caspase-3 inhibitor with a Ki value of 230 pM.
  • HY-N2302
    Fucoxanthin
    		99.38%
    Fucoxanthin (all-trans-Fucoxanthin) is a marine carotenoid and shows anti-obesity, anti-diabetic, anti-oxidant, anti-inflammatory and anticancer activities.
  • HY-B0388
    Probucol
    		Activator 99.92%
    Probucol (DH-581) is an anti-hyperlipidemic agent. Probucol activates glutathione peroxidase. Probucol promotes low density lipoprotein (LDL) catabolism, inhibits ABCA1-dependent cholesterol efflux, and decreases HDL-C levels. Probucol also has anti-inflammatory, antioxidant and neuroprotective properties. Probucol can be used for researches on bone, cardiovascular, cancer, neurological, and metabolism-related diseases.
  • HY-B1135
    Benzbromarone
    		99.91%
    Benzbromarone is an orally active anti-gout agent. Benzbromarone has anti-infammatory, anti-oxidative stress and nephroprotective effects. Benzbromarone can be used for the research of hyperuricemia and gout.
Cat. No. Product Name / Synonyms Species Source
Cat. No. Product Name / Synonyms Application Reactivity