Monomeric C-reactive protein (mCRP), once thought to be a figment of the imagination and whose biological activity was ascribed to its sodium azide preservative, has now pronounced itself as a critical molecule playing a direct role in mediating many of the acute and chronic aberrant pathological responses to inflammation. In this focused mini review, we describe the currently attributed pathobiological interactions of mCRP in disease, where its tissue and cellular distribution and deposition have recently been clearly characterized and linked to inflammation and other pathway-associated progression of neurological and cardiovascular complications and deleterious outcomes. and focus upon current opinions as to the diagnostic and prognostic potential of mCRP-plasma circulating protein and define the possible future therapeutics including ongoing research attempting to block CRP dissociation with small molecule inhibitors or prevention of cell surface binding directly using antibodies or modified orphan drug targeting directed towards CRP, inhibiting its cellular interactions and signaling activation. There is no doubt that understanding the full influence of the biological power of mCRP in disease development and outcome will be considered a critical parameter in future stratified treatment.
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http://dx.doi.org/10.3389/fimmu.2022.866379 | DOI Listing |
BMC Biol
January 2025
Institute of Clinical and Experimental Trauma Immunology, University Hospital Ulm, Helmholtzstrasse 8/1, 89081, Ulm, Germany.
Background: C-reactive protein (CRP) represents a routine diagnostic marker of inflammation. Dissociation of native pentameric CRP (pCRP) into the monomeric structure (mCRP) liberates proinflammatory features, presumably contributing to excessive immune cell activation via unknown molecular mechanisms.
Results: In a multi-translational study of systemic inflammation, we found a time- and inflammation-dependent pCRP dissociation into mCRP.
Invest Ophthalmol Vis Sci
December 2024
Institute for Vision Research, University of Iowa, Iowa City, Iowa, United States.
Purpose: Choroidal inflammation, complement deposition, and accumulation of C-reactive protein (CRP) are involved in age-related macular degeneration (AMD) pathology. The pro-inflammatory signals that regulate immune cell recruitment in the choroid of patients with AMD remain to be determined. We performed cytokine profiling of human AMD and age-matched control donor tissue to identify inflammatory molecules upregulated in AMD tissue.
View Article and Find Full Text PDFJ Inflamm Res
November 2024
Department of Clinical Immunology and Rheumatology, Sanjay Gandhi Postgraduate Institute of Medical Sciences (SGPGIMS), Lucknow, Uttar Pradesh, India.
Purpose: Existing biomarkers including C-reactive protein (CRP) do not adequately distinguish active and inactive TAK. We compared serum p-glycoprotein (p-gp)/Multidrug Resistance Protein 1 (MDR1), monomeric CRP (mCRP), CRP, and mCRP:CRP ratio in Takayasu arteritis (TAK) and healthy controls and their relationship with disease activity.
Patients And Methods: Serum p-gp mCRP (ELISA) and CRP (nephelometry) were compared between consecutive adults with TAK (>18 years) enrolled from a prospective cohort (n = 92) and healthy controls (n = 29), and between active vs inactive TAK (n = 46 each).
Circ Res
November 2024
Atherothrombosis and Vascular Biology Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia (J.Z., J.L.-S., S.B., A.L., A.R., A. Watson, N.D., P.S., A.B.-W., Y.C.C., M.M., M.L.P.V., A.H., N.M.H., X.W., G.P., J.D.M., K.P.).
Background: CRP (C-reactive protein) is a prototypical acute phase reactant. Upon dissociation of the pentameric isoform (pCRP [pentameric CRP]) into its monomeric subunits (mCRP [monomeric CRP]), it exhibits prothrombotic and proinflammatory activity. Pathophysiological shear rates as observed in aortic valve stenosis (AS) can influence protein conformation and function as observed with vWF (von Willebrand factor).
View Article and Find Full Text PDFCureus
August 2024
Center for Advanced Medical and Pharmaceutical Research, The George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Târgu Mureș, Târgu Mureș, ROU.
Alzheimer's disease (AD) pathogenesis is conditioned by the presence of amyloid beta (Aβ) and neuroinflammation. The gliovascular unit (GVU) illustrates the relationship between the vascular components of the brain and glial cells, particularly astrocytes, which are seen as critical elements mainly affected in this disease. In AD patients, the impairment of the GVU is seen as blood-brain barrier breakdown, decreased clearance of Aβ, and chronic inflammatory status.
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