cx43

CX4338 is a CXCL8-mediated chemotaxis inhibitor.

TAT-Gap19 acetate is a specific inhibitor of connexin43 hemichannel (Cx43 HC). TAT-Gap19 acetate traverses the blood-brain barrier and alleviates liver fibrosis in mice. TAT-Gap19 acetate does not inhibit the corresponding Cx43 GJCs.

Rotigaptide is a novel and specific modulator of Cx43 and is a potent AAP. Rotigaptide prevents the uncoupling of Cx43-mediated gap junction communication and normalizes cell-to-cell communication during acute metabolic stress.

Rotigaptide TFA(355151-12-1 free base) is a novel and specific modulator of Cx43 and is a potent AAP. Rotigaptide TFA(355151-12-1 free base) prevents the uncoupling of Cx43-mediated gap junction communication and normalizes cell-to-cell communication during acute metabolic stress.

TAT-Gap19(I130A) is a control peptide for TAT-Gap19, a Cx43 hemichannel blocker. TAT-Gap19(I130A) consists of TAT-GAP19 with a I130A amino acid residue change at a key residue for GAP19 activity. In C6 glioma cells expression Cx43, TAT-GAP19(1130A) does not inhibit [Ca2+]i-triggered ATP release at 200 μM. TAT-Gap19(I130A) is cell permeable.

TAT-Gap19 TFA, a Cx mimetic peptide and specific connexin43 hemichannel (Cx43 HC) inhibitor, does not inhibit corresponding Cx43 gap junction channels (GJCs). It crosses the blood-brain barrier and has shown efficacy in alleviating liver fibrosis in mice [1] [2] [3].

Tat-Gap 19, a peptide inhibitor of connexin43 (Cx43) hemichannels, is derived from the HIV-1 Tat protein transduction domain fused with a nine-amino acid sequence from Cx43 residues 128-136. This compound, at a concentration of 10 µM, effectively suppresses glutamate-induced ATP release in primary rat hepatocytes, indicating inhibition of Cx43 hemichannel activity. Furthermore, Tat-Gap 19 demonstrates therapeutic potential by significantly reducing infarct volume in a mouse cerebral ischemia-reperfusion injury model following middle cerebral artery occlusion (MCAO) at a dosage of 25 mg/kg. Moreover, its intraperitoneal administration at 1 mg/kg per day ameliorates fibrosis and decreases the area of hepatic stellate cells, the precursors to myofibroblasts, expressing α-smooth muscle actin (α-SMA), in a model of thioacetamide-induced liver damage. Additionally, it enhances superoxide dismutase (SOD) activity in hepatic cells from the treated mice, indicating its antioxidative benefits.

Gap19 TFA is a peptide derived from nine amino acids of Cx43 cytoplasmic ring (CL), an effective, selective connexin 43 (Cx43) half-channel blocker.

Gap19 is a peptide that corresponds to a sequence on the cytoplasmic loop (CL) of Cx43.

Cx43 hemichannel blocker (IC50 ~7 μM). No significant affinity for gap junctions or Panx1 channels. N-terminal transactivator of transcription (TAT) motif promotes membrane permeability and increases inhibitory effect of Gap19. Active in vivo. Brain penet

IP3RPEP6 serves as a competitive inhibitor of IP3R. Its IC50 values for IP3R1, IP3R2, and IP3R3 are 9.0 μM, 3.9 μM, and 4.3 μM, respectively. This compound does not affect ryanodine receptors and Cx43 hemichannels, and it is capable of modulating intracellular calcium signaling.