granzyme A Activators
Chemical activators of granzyme A can induce the activation and release of this serine protease from cytotoxic T cells and natural killer (NK) cells through various intracellular signaling pathways. For instance, phorbol 12-myristate 13-acetate (PMA) and bryostatin 1 are known to directly activate Protein Kinase C (PKC), a pivotal enzyme in the signaling cascades that facilitate the exocytosis of granzyme A-containing granules. Similarly, phorbol 12,13-dibutyrate (PDBu) function as a synthetic analog of diacylglycerol (DAG), also directly stimulating PKC, which in turn can lead to the mobilization of granzyme A. Forskolin, by elevating cAMP levels through the activation of adenylate cyclase, can influence signaling pathways that promote the release of granzyme A.
Additionally, ionophores like ionomycin, A23187 (calimycin), and thapsigargin can alter intracellular calcium concentrations, which are crucial second messengers in the activation process of cytotoxic cells, thereby facilitating the release of granzyme A. Calcium ionophores increase the intracellular calcium levels, which can lead to the activation of downstream kinases and phosphatases that ultimately result in the degranulation of cytotoxic cells. Thapsigargin, a SERCA pump inhibitor, causes a sustained increase in cytosolic calcium levels, further enhancing this process. Moreover, prostratin and ingenol 3,20-dibenzoate, similar to PMA, activate PKC and thus can contribute to the cellular mechanisms that lead to the secretion of granzyme A. BIM (Bisindolylmaleimide I), although primarily a selective inhibitor of PKC, at certain concentrations can activate PKC, which could influence the activation and degranulation of cytotoxic lymphocytes to secrete granzyme A.
SEE ALSO...
| Product Name | CAS # | Catalog # | QUANTITY | Price | Citations | RATING |
|---|---|---|---|---|---|---|
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 directly activates Protein Kinase C (PKC), which is involved in the signal transduction pathways that can lead to the activation of granzyme A by promoting its release from cytotoxic T cells and NK cells. | ||||||
Ionomycin | 56092-82-1 | sc-3592 sc-3592A | 1 mg 5 mg | $78.00 $270.00 | 80 | |
Ionomycin functions as a calcium ionophore, elevating intracellular calcium levels, which is a second messenger in various signaling pathways that can enhance the degranulation process of cytotoxic cells, thus facilitating the release of granzyme A. | ||||||
Bryostatin 1 | 83314-01-6 | sc-201407 | 10 µg | $245.00 | 9 | |
Bryostatin 1 is a PKC activator which can mimic the effects of diacylglycerol, leading to the activation of downstream pathways involving the exocytosis of cytolytic granules containing granzyme A. | ||||||
Forskolin | 66575-29-9 | sc-3562 sc-3562A sc-3562B sc-3562C sc-3562D | 5 mg 50 mg 1 g 2 g 5 g | $78.00 $153.00 $740.00 $1413.00 $2091.00 | 73 | |
Forskolin activates adenylate cyclase, increasing cAMP levels, which may lead to the activation of signaling pathways that enhance the secretion of granzyme A from cytotoxic lymphocytes. | ||||||
A23187 | 52665-69-7 | sc-3591 sc-3591B sc-3591A sc-3591C | 1 mg 5 mg 10 mg 25 mg | $55.00 $131.00 $203.00 $317.00 | 23 | |
A23187 is a calcium ionophore like ionomycin, and it raises intracellular calcium levels, thereby potentially enhancing the cytotoxic function of T cells and NK cells, including the action of granzyme A. | ||||||
Phorbol-12,13-dibutyrate | 37558-16-0 | sc-202285 | 1 mg | $124.00 | 3 | |
PDBu serves as a PKC activator, which can then potentiate the cytotoxic activity of T cells and NK cells, leading to increased release of granzyme A during the immune response. | ||||||
Thapsigargin | 67526-95-8 | sc-24017 sc-24017A | 1 mg 5 mg | $136.00 $446.00 | 114 | |
Thapsigargin is a SERCA pump inhibitor that leads to an increase in cytosolic calcium levels, which can enhance the activation and degranulation of cytotoxic cells, promoting the release of granzyme A. | ||||||
Bisindolylmaleimide I (GF 109203X) | 133052-90-1 | sc-24003A sc-24003 | 1 mg 5 mg | $105.00 $242.00 | 36 | |
BIM is a selective inhibitor of PKC, but at specific concentrations, it can paradoxically activate PKC, thus potentially leading to the activation of cytotoxic cells and subsequent release of granzyme A. | ||||||
Prostratin | 60857-08-1 | sc-203422 sc-203422A | 1 mg 5 mg | $141.00 $541.00 | 24 | |
Prostratin is a non-tumor promoting phorbol ester that activates PKC, which in turn can activate cytotoxic lymphocytes to release granzyme A as part of the cellular immune response. | ||||||
Ingenol 3,20-dibenzoate | 59086-90-7 | sc-202663 sc-202663A sc-202663B sc-202663C | 1 mg 5 mg 10 mg 100 mg | $600.00 $2400.00 $3500.00 $24000.00 | 9 | |
Ingenol 3,20-dibenzoate, similar to PMA, is a PKC activator that can lead to cellular activation processes including the secretion of granzyme A from cytotoxic cells. | ||||||