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Different distribution of pentraxin 3 and C-reactive protein in coronary atherosclerotic plaques.
J Atheroscler Thromb 2012; 19(9):837-45JA

Abstract

AIM

To understand the differences between histopathological characteristics related to PTX3 (pentraxin 3) and CRP (C-reactive protein) in coronary atherosclerotic plaques.

METHODS AND RESULTS

To assess the localization of PTX3 and CRP in coronary plaque, immunohistochemistry was performed using 157 coronary artery specimens from 45 autopsied cases. Overall, immunoreactivity to CRP was more intense than that to PTX3 in lipid rich plaque; however, PTX3 was notably abundant in areas of intraplaque hemorrhage, in which CRP was quite sparse. On quantitative analysis, complicated plaques showed more immunopositive area of PTX3 than fibroatheroma, but with CRP, this trend disappeared. In addition, we examined the phenotype of macrophages in PTX3- and CRP-rich areas using CD163 staining (M2 macrophages). Consequently, these areas were differently characterized by the accumulation of macrophages with high and low magnitude of CD163 positivity, respectively. Next, we immunohistochemically investigated relationships among PTX3, CRP, histological components and clinical presentation in 73 coronary atherectomy specimens obtained from 35 and 38 patients with unstable (UAP) and stable angina pectoris (SAP), respectively. Both PTX3 and CRP were more intense in culprit plaques from patients with UAP than with SAP, and they significantly correlated with CD68 (pan macrophage)-positive areas; however, there was no correlation between PTX3 and CRP.

CONCLUSION

Although PTX3 and CRP were more enhanced in unstable than in stable coronary plaques, their distribution distinctly differed, suggesting that they play distinct biological roles in unstable plaques.

Authors+Show Affiliations

Department of Internal Medicine, University of Miyazaki, Miyazaki, Japan.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

22785134

Citation

Matsuura, Yunosuke, et al. "Different Distribution of Pentraxin 3 and C-reactive Protein in Coronary Atherosclerotic Plaques." Journal of Atherosclerosis and Thrombosis, vol. 19, no. 9, 2012, pp. 837-45.
Matsuura Y, Hatakeyama K, Imamura T, et al. Different distribution of pentraxin 3 and C-reactive protein in coronary atherosclerotic plaques. J Atheroscler Thromb. 2012;19(9):837-45.
Matsuura, Y., Hatakeyama, K., Imamura, T., Tsuruda, T., Shibata, Y., Kodama, T., ... Asada, Y. (2012). Different distribution of pentraxin 3 and C-reactive protein in coronary atherosclerotic plaques. Journal of Atherosclerosis and Thrombosis, 19(9), pp. 837-45.
Matsuura Y, et al. Different Distribution of Pentraxin 3 and C-reactive Protein in Coronary Atherosclerotic Plaques. J Atheroscler Thromb. 2012;19(9):837-45. PubMed PMID: 22785134.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Different distribution of pentraxin 3 and C-reactive protein in coronary atherosclerotic plaques. AU - Matsuura,Yunosuke, AU - Hatakeyama,Kinta, AU - Imamura,Takuroh, AU - Tsuruda,Toshihiro, AU - Shibata,Yoshisato, AU - Kodama,Tatsuhiko, AU - Kitamura,Kazuo, AU - Asada,Yujiro, Y1 - 2012/07/11/ PY - 2012/7/13/entrez PY - 2012/7/13/pubmed PY - 2013/3/8/medline SP - 837 EP - 45 JF - Journal of atherosclerosis and thrombosis JO - J. Atheroscler. Thromb. VL - 19 IS - 9 N2 - AIM: To understand the differences between histopathological characteristics related to PTX3 (pentraxin 3) and CRP (C-reactive protein) in coronary atherosclerotic plaques. METHODS AND RESULTS: To assess the localization of PTX3 and CRP in coronary plaque, immunohistochemistry was performed using 157 coronary artery specimens from 45 autopsied cases. Overall, immunoreactivity to CRP was more intense than that to PTX3 in lipid rich plaque; however, PTX3 was notably abundant in areas of intraplaque hemorrhage, in which CRP was quite sparse. On quantitative analysis, complicated plaques showed more immunopositive area of PTX3 than fibroatheroma, but with CRP, this trend disappeared. In addition, we examined the phenotype of macrophages in PTX3- and CRP-rich areas using CD163 staining (M2 macrophages). Consequently, these areas were differently characterized by the accumulation of macrophages with high and low magnitude of CD163 positivity, respectively. Next, we immunohistochemically investigated relationships among PTX3, CRP, histological components and clinical presentation in 73 coronary atherectomy specimens obtained from 35 and 38 patients with unstable (UAP) and stable angina pectoris (SAP), respectively. Both PTX3 and CRP were more intense in culprit plaques from patients with UAP than with SAP, and they significantly correlated with CD68 (pan macrophage)-positive areas; however, there was no correlation between PTX3 and CRP. CONCLUSION: Although PTX3 and CRP were more enhanced in unstable than in stable coronary plaques, their distribution distinctly differed, suggesting that they play distinct biological roles in unstable plaques. SN - 1880-3873 UR - https://www.unboundmedicine.com/medline/citation/22785134/Different_distribution_of_pentraxin_3_and_C_reactive_protein_in_coronary_atherosclerotic_plaques_ L2 - http://joi.jlc.jst.go.jp/DN/JST.JSTAGE/jat/12526?from=PubMed DB - PRIME DP - Unbound Medicine ER -