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Mcp 1

Manufactured by MyBioSource
Sourced in United States

MCP-1 is a cytokine that functions as a chemotactic factor for monocytes. It plays a role in the recruitment of monocytes to sites of inflammation and injury.

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4 protocols using mcp 1

1

Oxidative Stress and Inflammation in Myocardial Tissue

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Systemic oxidative stress was assessed by IVC levels of 8-epi-isoprostane (EIA kit) [23 (link)]. Myocardial oxidative stress was assessed by in-situ production of superoxide anion with dihydroethidium (DHE) and by expression of the NADPH-oxidase subunits p47 and p67 (1 : 200; both Santa Cruz), and by nitrotyrosine (1 : 200; Cayman Chemical Company, Ann Arbor, Michigan, USA) [23 (link),24 (link)].
Inflammation was evaluated in myocardial sections by standard immunostaining for MCP-1 (1 : 7500; MyBioSource Inc., San Diego, California, USA) and double staining for pro-inflammatory CD68+/iNOS+ (M1) (Abnova Inc., Walnut, California, USA; catalog#: ab15323, 1 : 100) and reparative CD68+/Arinase-1 (M2) (sc-20150 cat#: HPA004114, 1 : 100) macrophages. In addition, myocardial expression of tumor necrosis factor (TNF)-α (Santa Cruz, 1 : 200), interleukin (IL)-6 (1 : 500; Abcam), and IL-10 (1 : 200; Santa Cruz) was quantified by western blot.
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2

Evaluating Myocardial Inflammation and Remodeling

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Myocardial inflammation was evaluated in 5-µm sections of the LV fluorescently-double stained with connexin-43 (Abcam; Cat# ab79010) and either MCP-1 (MyBioSource, 1:7500), TNF-α (Santa Cruz, 1:200), (IF)-γ (Santa Cruz 1:200), or IL-10 (Santa Cruz 1:200). Images were semiautomatically quantified using ZEN® in 20 random fields, and expressed as percentage of staining of total surface area. Myocyte cross-sectional area (H&E), myocardial fibrosis (trichrome), and interstitial collagen deposition (Sirius red) was assessed in mid-LV cross-sections.
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3

Serum Angiotensin Peptides and Enzyme Activities

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Serum samples were assayed with a Pentra 400 machine and the corresponding assay kits (Horiba France SAS, Longjumeau, France), as described previously [26 (link),27 (link)]. Serum equilibrium levels of angiotensin peptides (Ang I, Ang II, Ang-[1–7], and Ang-[1–5]) were measured using a liquid chromatography–tandem mass spectrometry (LC–MS/MS) technique (Attoquant Diagnostics, Vienna, Austria), as described previously [32 (link)]. Serum ACE activity (Ang II/Ang I) and serum renin activity (Ang I + Ang II) were calculated from the angiotensin peptide levels. Serum ACE2 activity was measured using a fluorometric assay kit (BioVision, Milpitas, CA, USA). Commercial ELISA kits were used to assay interleukin (IL)-6 (Fine Test, Wuhan, China) and monocyte chemoattractant protein-1 (MCP-1) (MyBiosource, San Diego, CA, USA).
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4

Quantifying Inflammatory Markers by ELISA

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Serum IL-6 and TNF-α levels were measured by ELISA (R&D Systems, Minneapolis MN, USA) as well as s-VCAM-1, s-ICAM-1, and MCP-1 (MyBioSource, San Diego CA, USA).
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