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R&D Systems par2 activating matriptase

Colonic <t>PAR2</t> activation by 2F elicits LSN responses that are mediated by endosomal internalization, PKA and PKC. (A) Experimental framework for LSN recordings showing a cannulated colon in a recording chamber with the LSN aspirated into a suction electrode. (B) Representative action potentials recorded from LSN afferent fiber prestimulation. (C and D) 100 µM 2F application elicits LSN responses illustrated by (C) action potential traces prestimulation and 15 minutes poststimulation and (D) change in LSN firing rate over time after stimulation via the luminal inflow (vertical dotted line). 2F-stimulation increased LSN firing (E and F). Timeline and peak change in firing rate after 100 µM 2F application (vertical dotted line) in tissue pretreated with (E) 50 µM PitStop2 (PS2) inhibitor for endosomal internalization or negative control PitNot2 (PN2) and (F) 100 µM H-89 dihydrochloride (H-89) and bisindolylmaleimide (GFX), PKA and PKC inhibitors or DMSO vehicle. (E) PS2 as well as separate and simultaneous pretreatment with H-89 and GFX reduced the peak response to 2F. (D and E) Independent samples t test comparing the peak change in firing rate (N = 5–9). (F) One-way ANOVA with post-hoc FDR-corrected independent samples t test (N = 5–6). * P < 0.05, ** P < 0.01, *** P < 0.001 **** P < 0.0001. Data are presented as mean ± SD. LSN, lumbar splanchnic nerve; PAR2, <t>protease-activated</t> <t>receptor</t> <t>2;</t> PKA, protein kinase A; PKC, protein kinase C.

Par2 Activating Matriptase, supplied by R&D Systems, used in various techniques. Bioz Stars score: 95/100, based on 30 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/human+par2/Recombinant+Human+Matriptase%2FST14+Catalytic+Domain%2C+CF/pmc13098787-140-26-30
Average 95 stars, based on 30 article reviews

par2 activating matriptase - by Bioz Stars, 2026-09

95/100 stars

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1) Product Images from "Monoclonal antibody inhibition of PAR2 reduces phenotype severity and pain in murine inflammatory bowel disease"

Article Title: Monoclonal antibody inhibition of PAR2 reduces phenotype severity and pain in murine inflammatory bowel disease

Journal: Pain Reports

doi: 10.1097/PR9.0000000000001446

Colonic PAR2 activation by 2F elicits LSN responses that are mediated by endosomal internalization, PKA and PKC. (A) Experimental framework for LSN recordings showing a cannulated colon in a recording chamber with the LSN aspirated into a suction electrode. (B) Representative action potentials recorded from LSN afferent fiber prestimulation. (C and D) 100 µM 2F application elicits LSN responses illustrated by (C) action potential traces prestimulation and 15 minutes poststimulation and (D) change in LSN firing rate over time after stimulation via the luminal inflow (vertical dotted line). 2F-stimulation increased LSN firing (E and F). Timeline and peak change in firing rate after 100 µM 2F application (vertical dotted line) in tissue pretreated with (E) 50 µM PitStop2 (PS2) inhibitor for endosomal internalization or negative control PitNot2 (PN2) and (F) 100 µM H-89 dihydrochloride (H-89) and bisindolylmaleimide (GFX), PKA and PKC inhibitors or DMSO vehicle. (E) PS2 as well as separate and simultaneous pretreatment with H-89 and GFX reduced the peak response to 2F. (D and E) Independent samples t test comparing the peak change in firing rate (N = 5–9). (F) One-way ANOVA with post-hoc FDR-corrected independent samples t test (N = 5–6). * P < 0.05, ** P < 0.01, *** P < 0.001 **** P < 0.0001. Data are presented as mean ± SD. LSN, lumbar splanchnic nerve; PAR2, protease-activated receptor 2; PKA, protein kinase A; PKC, protein kinase C.

Figure Legend Snippet: Colonic PAR2 activation by 2F elicits LSN responses that are mediated by endosomal internalization, PKA and PKC. (A) Experimental framework for LSN recordings showing a cannulated colon in a recording chamber with the LSN aspirated into a suction electrode. (B) Representative action potentials recorded from LSN afferent fiber prestimulation. (C and D) 100 µM 2F application elicits LSN responses illustrated by (C) action potential traces prestimulation and 15 minutes poststimulation and (D) change in LSN firing rate over time after stimulation via the luminal inflow (vertical dotted line). 2F-stimulation increased LSN firing (E and F). Timeline and peak change in firing rate after 100 µM 2F application (vertical dotted line) in tissue pretreated with (E) 50 µM PitStop2 (PS2) inhibitor for endosomal internalization or negative control PitNot2 (PN2) and (F) 100 µM H-89 dihydrochloride (H-89) and bisindolylmaleimide (GFX), PKA and PKC inhibitors or DMSO vehicle. (E) PS2 as well as separate and simultaneous pretreatment with H-89 and GFX reduced the peak response to 2F. (D and E) Independent samples t test comparing the peak change in firing rate (N = 5–9). (F) One-way ANOVA with post-hoc FDR-corrected independent samples t test (N = 5–6). * P < 0.05, ** P < 0.01, *** P < 0.001 **** P < 0.0001. Data are presented as mean ± SD. LSN, lumbar splanchnic nerve; PAR2, protease-activated receptor 2; PKA, protein kinase A; PKC, protein kinase C.

Techniques Used: Activation Assay, Negative Control

PAR2 activation in the colon by 2F sensitizes LSN responses to mechanical and chemical stimulation of the colon via endosomal internalization, PKA and PKC. LSN action potential firing after mechanical distention: gradually increasing intraluminal pressure from 0 to 80 mm Hg, and chemical application: 1 mM cinnamaldehyde and 1 µM capsaicin are illustrated in (A). (B) Responses to distention were quantified through the change in firing rate over increasing discrete pressure values. (C and D) Responses to chemical stimuli were quantified through the change in firing rate over time after application (vertical dotted line). 100 µM 2F stimulation, but not vehicle control, elicited sensitization of the LSN to (B) distention, (C) cinnamaldehyde, and (D) capsaicin. Pretreatment with PS2 before 2F stimulation reduced subsequent LSN responses to distention, cinnamaldehyde, and capsaicin compared with PN2. Pretreatment with H-89 and GFX, applied either simultaneously or individually, also reduced subsequent peak LSN responses to distention, cinnamaldehyde, and capsaicin compared with DMSO vehicle. (B–D) Independent samples t tests and one-way ANOVA with post-hoc FDR-corrected independent samples t test (N = 5–9). * P < 0.05, ** P < 0.01, **** P < 0.0001. Data are presented as means ± SD. LSN, lumbar splanchnic nerve; PAR2, protease-activated receptor 2; PKA, protein kinase A; PKC, protein kinase C.

Figure Legend Snippet: PAR2 activation in the colon by 2F sensitizes LSN responses to mechanical and chemical stimulation of the colon via endosomal internalization, PKA and PKC. LSN action potential firing after mechanical distention: gradually increasing intraluminal pressure from 0 to 80 mm Hg, and chemical application: 1 mM cinnamaldehyde and 1 µM capsaicin are illustrated in (A). (B) Responses to distention were quantified through the change in firing rate over increasing discrete pressure values. (C and D) Responses to chemical stimuli were quantified through the change in firing rate over time after application (vertical dotted line). 100 µM 2F stimulation, but not vehicle control, elicited sensitization of the LSN to (B) distention, (C) cinnamaldehyde, and (D) capsaicin. Pretreatment with PS2 before 2F stimulation reduced subsequent LSN responses to distention, cinnamaldehyde, and capsaicin compared with PN2. Pretreatment with H-89 and GFX, applied either simultaneously or individually, also reduced subsequent peak LSN responses to distention, cinnamaldehyde, and capsaicin compared with DMSO vehicle. (B–D) Independent samples t tests and one-way ANOVA with post-hoc FDR-corrected independent samples t test (N = 5–9). * P < 0.05, ** P < 0.01, **** P < 0.0001. Data are presented as means ± SD. LSN, lumbar splanchnic nerve; PAR2, protease-activated receptor 2; PKA, protein kinase A; PKC, protein kinase C.

Techniques Used: Activation Assay, Control

Produced:

Article Title: Structural insight into allosteric modulation of protease-activated receptor 2.
Article Snippet: Robert K. Y. Cheng1*, Cédric Fiez-Vandal1*, oliver Schlenker1*, Karl Edman2*, Birte Aggeler3, Dean G. Brown4, Giles A. Brown1, Robert M. Cooke1, Christoph E. Dumelin5, Andrew S. Doré1, Stefan Geschwindner2, Christoph Grebner6, nils-olov hermansson2, Ali Jazayeri1, Patrik Johansson2, Louis Leong3, Rudi Prihandoko1, Mathieu Rappas1, holly Soutter5, Arjan Snijder2, Linda Sundström2, Benjamin tehan1, Peter thornton7, Dawn troast5, Giselle Wiggin1, Andrei Zhukov1, Fiona h. Marshall1 & niek Dekker2

Isolation:

In Vivo:

Transfection:

Image Search Results

Journal: Pain Reports

Article Title: Monoclonal antibody inhibition of PAR2 reduces phenotype severity and pain in murine inflammatory bowel disease

doi: 10.1097/PR9.0000000000001446

Figure Lengend Snippet: Colonic PAR2 activation by 2F elicits LSN responses that are mediated by endosomal internalization, PKA and PKC. (A) Experimental framework for LSN recordings showing a cannulated colon in a recording chamber with the LSN aspirated into a suction electrode. (B) Representative action potentials recorded from LSN afferent fiber prestimulation. (C and D) 100 µM 2F application elicits LSN responses illustrated by (C) action potential traces prestimulation and 15 minutes poststimulation and (D) change in LSN firing rate over time after stimulation via the luminal inflow (vertical dotted line). 2F-stimulation increased LSN firing (E and F). Timeline and peak change in firing rate after 100 µM 2F application (vertical dotted line) in tissue pretreated with (E) 50 µM PitStop2 (PS2) inhibitor for endosomal internalization or negative control PitNot2 (PN2) and (F) 100 µM H-89 dihydrochloride (H-89) and bisindolylmaleimide (GFX), PKA and PKC inhibitors or DMSO vehicle. (E) PS2 as well as separate and simultaneous pretreatment with H-89 and GFX reduced the peak response to 2F. (D and E) Independent samples t test comparing the peak change in firing rate (N = 5–9). (F) One-way ANOVA with post-hoc FDR-corrected independent samples t test (N = 5–6). * P < 0.05, ** P < 0.01, *** P < 0.001 **** P < 0.0001. Data are presented as mean ± SD. LSN, lumbar splanchnic nerve; PAR2, protease-activated receptor 2; PKA, protein kinase A; PKC, protein kinase C.

Article Snippet: When measuring the inhibitory concentration 50 (IC50), cells received PAR650097 mIgG or hIgG or isotype control antibodies, for 60 minutes at room temperature before addition of PAR2 activating matriptase (3946-SEB-010, R&D Systems, Abingdon, United Kingdom).

Techniques: Activation Assay, Negative Control

Journal: Pain Reports

Article Title: Monoclonal antibody inhibition of PAR2 reduces phenotype severity and pain in murine inflammatory bowel disease

doi: 10.1097/PR9.0000000000001446

Figure Lengend Snippet: PAR2 activation in the colon by 2F sensitizes LSN responses to mechanical and chemical stimulation of the colon via endosomal internalization, PKA and PKC. LSN action potential firing after mechanical distention: gradually increasing intraluminal pressure from 0 to 80 mm Hg, and chemical application: 1 mM cinnamaldehyde and 1 µM capsaicin are illustrated in (A). (B) Responses to distention were quantified through the change in firing rate over increasing discrete pressure values. (C and D) Responses to chemical stimuli were quantified through the change in firing rate over time after application (vertical dotted line). 100 µM 2F stimulation, but not vehicle control, elicited sensitization of the LSN to (B) distention, (C) cinnamaldehyde, and (D) capsaicin. Pretreatment with PS2 before 2F stimulation reduced subsequent LSN responses to distention, cinnamaldehyde, and capsaicin compared with PN2. Pretreatment with H-89 and GFX, applied either simultaneously or individually, also reduced subsequent peak LSN responses to distention, cinnamaldehyde, and capsaicin compared with DMSO vehicle. (B–D) Independent samples t tests and one-way ANOVA with post-hoc FDR-corrected independent samples t test (N = 5–9). * P < 0.05, ** P < 0.01, **** P < 0.0001. Data are presented as means ± SD. LSN, lumbar splanchnic nerve; PAR2, protease-activated receptor 2; PKA, protein kinase A; PKC, protein kinase C.

Techniques: Activation Assay, Control

Examination of the mechanism of influence of TF on Tau protein expression and phosphorylation in differentiated SH-SY5Y cells. SH-SY5Y (2 × 10 5 ) were treated with recombinant relipidated Innovin TF (0.65 ng/ml) together with or without human fVIIa (5 nM) or fVIIa alone. In some experiments, the TF aliquots were pre-incubated for 1 h, with 10H10 antibody (20 µg/ml) capable of blocking TF signalling, HTF-1 antibody (20 µg/ml) to block TF-fVIIa protease/procoagulant activity, or a mouse control isotype IgG antibody (20 µg/ml; not shown). In other experiments, fVIIa was pre-incubated for 1 h with the chemical inhibitor PCI27483 (10 µg/ml). Alternatively, the neuronal cells were treated with AIIB2 antibody (20 µg/ml) to block β1-integrin signalling, SAM11 antibody (20 µg/ml) capable of blocking PAR2 signalling, or PAR2-activating peptide (PAR2-AP; 20 µM) to induce PAR2 signalling. Cells were harvested at 24 h, and cellular lysates (10 µg protein) were examined for Tau and phospho-Thr181 Tau by western blot analysis. All values were normalised against the respective GAPDH and for comparison, all ratios were calculated against the average from the non-treated cells ± the calculated standard deviation. The number of experiments is shown in each column, and all data groups were determined to have normal distributions and are shown in each column. A SH-SY5Y protein electrophoresis, B SH-SY5Y phospho-Thr181 Tau electrophoresis, C SH-SY5Y Tau protein ratio, and D SH-SY5Y phospho-Thr181 Tau ratio

Journal: Cellular and Molecular Neurobiology

Article Title: Procoagulant Extracellular Vesicles Increase Neuronal Tau expression, Metabolism and Processing Through Tissue Factor and Protease Activated Receptor 2

doi: 10.1007/s10571-025-01658-7

Figure Lengend Snippet: Examination of the mechanism of influence of TF on Tau protein expression and phosphorylation in differentiated SH-SY5Y cells. SH-SY5Y (2 × 10 5 ) were treated with recombinant relipidated Innovin TF (0.65 ng/ml) together with or without human fVIIa (5 nM) or fVIIa alone. In some experiments, the TF aliquots were pre-incubated for 1 h, with 10H10 antibody (20 µg/ml) capable of blocking TF signalling, HTF-1 antibody (20 µg/ml) to block TF-fVIIa protease/procoagulant activity, or a mouse control isotype IgG antibody (20 µg/ml; not shown). In other experiments, fVIIa was pre-incubated for 1 h with the chemical inhibitor PCI27483 (10 µg/ml). Alternatively, the neuronal cells were treated with AIIB2 antibody (20 µg/ml) to block β1-integrin signalling, SAM11 antibody (20 µg/ml) capable of blocking PAR2 signalling, or PAR2-activating peptide (PAR2-AP; 20 µM) to induce PAR2 signalling. Cells were harvested at 24 h, and cellular lysates (10 µg protein) were examined for Tau and phospho-Thr181 Tau by western blot analysis. All values were normalised against the respective GAPDH and for comparison, all ratios were calculated against the average from the non-treated cells ± the calculated standard deviation. The number of experiments is shown in each column, and all data groups were determined to have normal distributions and are shown in each column. A SH-SY5Y protein electrophoresis, B SH-SY5Y phospho-Thr181 Tau electrophoresis, C SH-SY5Y Tau protein ratio, and D SH-SY5Y phospho-Thr181 Tau ratio

Article Snippet: Alternatively, the neuronal cells were treated with a rat anti-human antibody (20 μg/ml; AIIB2; Merck KGaA) to block β1-integrin signalling, a mouse anti-human PAR2 antibody, SAM11 (20 μg/ml; Santa Cruz Biotechnology, Heidelberg, Germany), capable of blocking PAR2 signalling, or PAR2-activating peptide (PAR2-AP; 20 μM) to induce PAR2 signalling.

Techniques: Expressing, Phospho-proteomics, Recombinant, Incubation, Blocking Assay, Activity Assay, Control, Western Blot, Comparison, Standard Deviation, Protein Electrophoresis, Electrophoresis

Time-course analysis of the Tau protein fragments in differentiated SH-SY5Y cells, following treatment with TF . SH-SY5Y (2 × 10 5 ) were treated with as single dose of recombinant relipidated Innovin TF (0.65 ng/ml) together with human fVIIa (5 nM). In some experiments, the TF aliquots were pre-incubated for 1 h, with 10H10 antibody (20 µg/ml) capable of blocking TF signalling, HTF-1 antibody (20 µg/ml) to block TF-fVIIa protease/procoagulant activity, or a mouse control isotype IgG antibody (20 µg/ml; not shown). Alternatively, the neuronal cells were treated with AIIB2 antibody (20 µg/ml) to block β1-integrin signalling, or SAM11 antibody (20 µg/ml) capable of blocking PAR2 signalling. Sets of cells were harvested at A 48 h and D at 72 h and cellular lysates (10 µg protein) were examined for Tau by western blot analysis. All values were normalised against the respective GAPDH (see Supplementary Fig. 6 A and B) and for comparison, all ratios were calculated against the average from the non-treated cells ± the calculated standard deviation. The data were obtained from 6 biological experiments, and all data groups were determined to have normal distributions. A Electrophoresis at 48 h, B calculated ratios of 50 kDa bands at 48 h, C calculated ratios of 30–35 kDa bands at 48 h, D electrophoresis at 72 h, E calculated ratios of 50 kDa bands at 72 h, F calculated ratios of 40 kDa bands at 72 h, G calculated ratios of 30–35 kDa bands at 72 h

Journal: Cellular and Molecular Neurobiology

Article Title: Procoagulant Extracellular Vesicles Increase Neuronal Tau expression, Metabolism and Processing Through Tissue Factor and Protease Activated Receptor 2

doi: 10.1007/s10571-025-01658-7

Figure Lengend Snippet: Time-course analysis of the Tau protein fragments in differentiated SH-SY5Y cells, following treatment with TF . SH-SY5Y (2 × 10 5 ) were treated with as single dose of recombinant relipidated Innovin TF (0.65 ng/ml) together with human fVIIa (5 nM). In some experiments, the TF aliquots were pre-incubated for 1 h, with 10H10 antibody (20 µg/ml) capable of blocking TF signalling, HTF-1 antibody (20 µg/ml) to block TF-fVIIa protease/procoagulant activity, or a mouse control isotype IgG antibody (20 µg/ml; not shown). Alternatively, the neuronal cells were treated with AIIB2 antibody (20 µg/ml) to block β1-integrin signalling, or SAM11 antibody (20 µg/ml) capable of blocking PAR2 signalling. Sets of cells were harvested at A 48 h and D at 72 h and cellular lysates (10 µg protein) were examined for Tau by western blot analysis. All values were normalised against the respective GAPDH (see Supplementary Fig. 6 A and B) and for comparison, all ratios were calculated against the average from the non-treated cells ± the calculated standard deviation. The data were obtained from 6 biological experiments, and all data groups were determined to have normal distributions. A Electrophoresis at 48 h, B calculated ratios of 50 kDa bands at 48 h, C calculated ratios of 30–35 kDa bands at 48 h, D electrophoresis at 72 h, E calculated ratios of 50 kDa bands at 72 h, F calculated ratios of 40 kDa bands at 72 h, G calculated ratios of 30–35 kDa bands at 72 h

Techniques: Recombinant, Incubation, Blocking Assay, Activity Assay, Control, Western Blot, Comparison, Standard Deviation, Electrophoresis

PAR2 expression level in lung cancer cells transfected either with pcDNA3-PAR2 or PAR2 shRNA. (A) PAR2 expression level after A549 cells were transfected with pcDNA3-PAR2; (B) PAR2 expression level after H1299 cells were transfected with pcDNA3-PAR2; (C) PAR2 expression level after A549 cells were transfected with PAR2 shRNA; (D) PAR2 expression level after H1299 cells were transfected with PAR2 shRNA.

Journal: Future Science OA

Article Title: PAR2 regulates proliferation, migration of lung cancer and chemotherapy sensitivity by involving PTEN pathway

doi: 10.1080/20565623.2025.2535221

Figure Lengend Snippet: PAR2 expression level in lung cancer cells transfected either with pcDNA3-PAR2 or PAR2 shRNA. (A) PAR2 expression level after A549 cells were transfected with pcDNA3-PAR2; (B) PAR2 expression level after H1299 cells were transfected with pcDNA3-PAR2; (C) PAR2 expression level after A549 cells were transfected with PAR2 shRNA; (D) PAR2 expression level after H1299 cells were transfected with PAR2 shRNA.

Article Snippet: The primers were synthesized by Origene (USA) and the sequences were as follow: PAR2 forward: 5′-CTCCTCTCTGTCATCTGGTTCC-3′ and reverse 5′-TGCACACTGAGGCAGGTCATGA-3′.

Techniques: Expressing, Transfection, shRNA

Overexpression PAR2 promoted growth of lung cancer cells with or without paclitaxel. (A–D) The growth of A549 cells with or without paclitaxel after transfection with pcDNA3-PAR2; (E–H) The growth of H1299 cells with or without paclitaxel after transfection with pcDNA3-PAR2.

Journal: Future Science OA

Article Title: PAR2 regulates proliferation, migration of lung cancer and chemotherapy sensitivity by involving PTEN pathway

doi: 10.1080/20565623.2025.2535221

Figure Lengend Snippet: Overexpression PAR2 promoted growth of lung cancer cells with or without paclitaxel. (A–D) The growth of A549 cells with or without paclitaxel after transfection with pcDNA3-PAR2; (E–H) The growth of H1299 cells with or without paclitaxel after transfection with pcDNA3-PAR2.

Article Snippet: The primers were synthesized by Origene (USA) and the sequences were as follow: PAR2 forward: 5′-CTCCTCTCTGTCATCTGGTTCC-3′ and reverse 5′-TGCACACTGAGGCAGGTCATGA-3′.

Techniques: Over Expression, Transfection

Knockdown PAR2 decreased growth of lung cancer cells with or without paclitaxel. (A–D) The growth of A549 cells with or without paclitaxel after transfection with PAR2 shRNA; (E–H) The growth of H1299 cells with or without paclitaxel after transfection with PAR2 shRNA.

Journal: Future Science OA

Article Title: PAR2 regulates proliferation, migration of lung cancer and chemotherapy sensitivity by involving PTEN pathway

doi: 10.1080/20565623.2025.2535221

Figure Lengend Snippet: Knockdown PAR2 decreased growth of lung cancer cells with or without paclitaxel. (A–D) The growth of A549 cells with or without paclitaxel after transfection with PAR2 shRNA; (E–H) The growth of H1299 cells with or without paclitaxel after transfection with PAR2 shRNA.

Article Snippet: The primers were synthesized by Origene (USA) and the sequences were as follow: PAR2 forward: 5′-CTCCTCTCTGTCATCTGGTTCC-3′ and reverse 5′-TGCACACTGAGGCAGGTCATGA-3′.

Techniques: Knockdown, Transfection, shRNA

PAR2 inhibited paclitaxel-associated apoptosis in lung cancer cells. (A) Caspase 3/7 activity in A549 cell transfected with pcDNA3-PAR2; (B) Caspase 3/7 activity in H1299 cell transfected with pcDNA3-PAR2; (C–F) Bcl-2 and BAX expression in A549 and H1299 cells.

Journal: Future Science OA

Article Title: PAR2 regulates proliferation, migration of lung cancer and chemotherapy sensitivity by involving PTEN pathway

doi: 10.1080/20565623.2025.2535221

Figure Lengend Snippet: PAR2 inhibited paclitaxel-associated apoptosis in lung cancer cells. (A) Caspase 3/7 activity in A549 cell transfected with pcDNA3-PAR2; (B) Caspase 3/7 activity in H1299 cell transfected with pcDNA3-PAR2; (C–F) Bcl-2 and BAX expression in A549 and H1299 cells.

Article Snippet: The primers were synthesized by Origene (USA) and the sequences were as follow: PAR2 forward: 5′-CTCCTCTCTGTCATCTGGTTCC-3′ and reverse 5′-TGCACACTGAGGCAGGTCATGA-3′.

Techniques: Activity Assay, Transfection, Expressing

PAR2 played essential roles in invasion and migration of lung cancer cells. (A, B) up-regulation of PAR2 increased migration and invasion of A549 cells. (C, D) down-regulation of PAR2 decreaased migration and invasion of A549 cells. (E, F) up-regulation of PAR2 increased migration and invasion of H1299 cells. (G, H) down-regulation of PAR2 decreased migration and invasion of H1299 cells.

Journal: Future Science OA

Article Title: PAR2 regulates proliferation, migration of lung cancer and chemotherapy sensitivity by involving PTEN pathway

doi: 10.1080/20565623.2025.2535221

Figure Lengend Snippet: PAR2 played essential roles in invasion and migration of lung cancer cells. (A, B) up-regulation of PAR2 increased migration and invasion of A549 cells. (C, D) down-regulation of PAR2 decreaased migration and invasion of A549 cells. (E, F) up-regulation of PAR2 increased migration and invasion of H1299 cells. (G, H) down-regulation of PAR2 decreased migration and invasion of H1299 cells.

Article Snippet: The primers were synthesized by Origene (USA) and the sequences were as follow: PAR2 forward: 5′-CTCCTCTCTGTCATCTGGTTCC-3′ and reverse 5′-TGCACACTGAGGCAGGTCATGA-3′.

Techniques: Migration

PAR2 altered PTEN/AKT protein expression in lung cancer cells. (A–C) Impact of up-regulation of PAR2 on expression of p-AKT, AKT and PTEN in A549 and H1299 cells. (D–F) Impact of down-regulation of PAR2 on expression of p-AKT, AKT and PTEN in A549 and H1299 cells.

Journal: Future Science OA

Article Title: PAR2 regulates proliferation, migration of lung cancer and chemotherapy sensitivity by involving PTEN pathway

doi: 10.1080/20565623.2025.2535221

Figure Lengend Snippet: PAR2 altered PTEN/AKT protein expression in lung cancer cells. (A–C) Impact of up-regulation of PAR2 on expression of p-AKT, AKT and PTEN in A549 and H1299 cells. (D–F) Impact of down-regulation of PAR2 on expression of p-AKT, AKT and PTEN in A549 and H1299 cells.

Article Snippet: The primers were synthesized by Origene (USA) and the sequences were as follow: PAR2 forward: 5′-CTCCTCTCTGTCATCTGGTTCC-3′ and reverse 5′-TGCACACTGAGGCAGGTCATGA-3′.

Techniques: Expressing

PAR2 expression in human lung cancer tissue. (A) PAR2 levels in different stage of lung cancer tissue and normal lung tissue. (B) Immunohistochemical studies for Ki-67 and PTEN on different levels of PAR2 in lung tissue.

Journal: Future Science OA

Article Title: PAR2 regulates proliferation, migration of lung cancer and chemotherapy sensitivity by involving PTEN pathway

doi: 10.1080/20565623.2025.2535221

Figure Lengend Snippet: PAR2 expression in human lung cancer tissue. (A) PAR2 levels in different stage of lung cancer tissue and normal lung tissue. (B) Immunohistochemical studies for Ki-67 and PTEN on different levels of PAR2 in lung tissue.

Article Snippet: The primers were synthesized by Origene (USA) and the sequences were as follow: PAR2 forward: 5′-CTCCTCTCTGTCATCTGGTTCC-3′ and reverse 5′-TGCACACTGAGGCAGGTCATGA-3′.

Techniques: Expressing, Immunohistochemical staining

Specificity and potency of anti-PAR2 monoclonal antibody MEDI0618 . ( A ) Live staining of PAR2-expressing (1321N1-hPAR2.cl8) or non-expressing (1321N1 parental) cell lines with MEDI0618 directly conjugated to Alexa Fluor 647. Scale bar = 20 µm. ( B ) Flow cytometry of hPAR2 overexpressing cells (1321N1-hPAR2.cl8) or non-expressing cells (1321N1 parental cell line) or A549 cells endogenously expressing hPAR2 live labelled with MEDI0618. ( C and D ) Calcium imaging from 1321N1-hPAR2 cells pretreated with MEDI0618 hIgG or an isotype control protein. ( C ) Exemplar raw calcium trace from a single well pretreated with MEDI0618 or isotype control antibody both at 1 nM, followed by PAR2 agonist stimulation with matriptase (10 nM). ( D ) Antibody titration of the anti-PAR2 antibodies MEDI0618 or PAR650097 or an isotype control antibody. Data show the matriptase (10 nM)-mediated calcium signal after preincubation with antibody and normalized to the matriptase response in the absence of antibody treatment. ( E ) Calcium imaging from A549 cells pretreated with MEDI0618, isotype control protein or PAR1 inhibitors (ATAP2 + WEDE15 mAbs) followed by 10 nM thrombin (PAR1 agonist) stimulation. Data are presented as mean ± standard error of the mean, n = 4. The concentration of the inhibitor is shown on the x -axis. Data are normalized to the peak thrombin calcium response in the absence of inhibitor pretreatment.

Journal: Brain

Article Title: Efficacy of MEDI0618, a pH-dependent monoclonal antibody targeting PAR2, in preclinical models of migraine

doi: 10.1093/brain/awae344

Figure Lengend Snippet: Specificity and potency of anti-PAR2 monoclonal antibody MEDI0618 . ( A ) Live staining of PAR2-expressing (1321N1-hPAR2.cl8) or non-expressing (1321N1 parental) cell lines with MEDI0618 directly conjugated to Alexa Fluor 647. Scale bar = 20 µm. ( B ) Flow cytometry of hPAR2 overexpressing cells (1321N1-hPAR2.cl8) or non-expressing cells (1321N1 parental cell line) or A549 cells endogenously expressing hPAR2 live labelled with MEDI0618. ( C and D ) Calcium imaging from 1321N1-hPAR2 cells pretreated with MEDI0618 hIgG or an isotype control protein. ( C ) Exemplar raw calcium trace from a single well pretreated with MEDI0618 or isotype control antibody both at 1 nM, followed by PAR2 agonist stimulation with matriptase (10 nM). ( D ) Antibody titration of the anti-PAR2 antibodies MEDI0618 or PAR650097 or an isotype control antibody. Data show the matriptase (10 nM)-mediated calcium signal after preincubation with antibody and normalized to the matriptase response in the absence of antibody treatment. ( E ) Calcium imaging from A549 cells pretreated with MEDI0618, isotype control protein or PAR1 inhibitors (ATAP2 + WEDE15 mAbs) followed by 10 nM thrombin (PAR1 agonist) stimulation. Data are presented as mean ± standard error of the mean, n = 4. The concentration of the inhibitor is shown on the x -axis. Data are normalized to the peak thrombin calcium response in the absence of inhibitor pretreatment.

Article Snippet: The 1321N1 parental cell line (lacking PAR2 expression), 1321N1 cells stably expressing human PAR2 (1321N1-hPAR2.cl8) (generated in-house at AstraZeneca) or A549 cells endogenously expressing hPAR2 were pre-stained with LIVE/DEADTM dead cell stain (ThermoFisher); 7.5 × 10 6 cells from each line were collected in total and stained in 7.5 ml phosphate buffered saline (PBS) (ice-cold) with 1× violet dead cell stain for 30 min on ice.

Techniques: Staining, Expressing, Flow Cytometry, Imaging, Control, Titration, Concentration Assay

PAR2 functional expression in human and mouse cells relevant to migraine . Whole well calcium imaging from primary human dural fibroblasts (HDuF), human dural microvascular endothelial (HDuMEC) and mouse brain endothelial (bEnd.3) cells. ( A , D and G ) PAR2 agonists concentration response curve in ( A ) HDuF, ( D ) HDuMEC and ( G ) bEnd.3 cells. ( B , E and F ) Effect of MEDI0618 and isotype control protein (IgG) on inhibition of matriptase-induced calcium signalling at 30 nM in ( B ) HDuF, ( E ) HDuMEC and ( H ) bEnd.3 cells. ( C , F and I ) Representative calcium imaging traces of 30 nM matriptase-evoked activity following MEDI0618 or isotype control protein preincubation in ( C ) HDuF, ( F ) HDuMEC and ( I ) bEnd.3 cells. ( J and K ) Single-cell calcium imaging from mouse trigeminal neuron cultures. ( J ) Pseudocolour images of fura-2 ratio intensity show a subset of trigeminal neurons activated by treatment with 10 µM LIGRLO in comparison to 20 mM KCl treatment. Scale bar = 20 µm. ( K ) Representation of fura-2 traces recorded from two individual neurons during acute LIGRLO (10 µM) or KCl (20 mM) treatment.

Journal: Brain

Article Title: Efficacy of MEDI0618, a pH-dependent monoclonal antibody targeting PAR2, in preclinical models of migraine

doi: 10.1093/brain/awae344

Figure Lengend Snippet: PAR2 functional expression in human and mouse cells relevant to migraine . Whole well calcium imaging from primary human dural fibroblasts (HDuF), human dural microvascular endothelial (HDuMEC) and mouse brain endothelial (bEnd.3) cells. ( A , D and G ) PAR2 agonists concentration response curve in ( A ) HDuF, ( D ) HDuMEC and ( G ) bEnd.3 cells. ( B , E and F ) Effect of MEDI0618 and isotype control protein (IgG) on inhibition of matriptase-induced calcium signalling at 30 nM in ( B ) HDuF, ( E ) HDuMEC and ( H ) bEnd.3 cells. ( C , F and I ) Representative calcium imaging traces of 30 nM matriptase-evoked activity following MEDI0618 or isotype control protein preincubation in ( C ) HDuF, ( F ) HDuMEC and ( I ) bEnd.3 cells. ( J and K ) Single-cell calcium imaging from mouse trigeminal neuron cultures. ( J ) Pseudocolour images of fura-2 ratio intensity show a subset of trigeminal neurons activated by treatment with 10 µM LIGRLO in comparison to 20 mM KCl treatment. Scale bar = 20 µm. ( K ) Representation of fura-2 traces recorded from two individual neurons during acute LIGRLO (10 µM) or KCl (20 mM) treatment.

Techniques: Functional Assay, Expressing, Imaging, Concentration Assay, Control, Inhibition, Activity Assay, Comparison

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par2 activating matriptase (R&D Systems)

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1) Product Images from "Monoclonal antibody inhibition of PAR2 reduces phenotype severity and pain in murine inflammatory bowel disease"

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