Elsevier

Blood Reviews

Volume 16, Issue 2, June 2002, Pages 87-96
Blood Reviews

Regular Article
Pathogenesis and treatment of anaemia of chronic disease

https://doi.org/10.1054/blre.2002.0193Get rights and content

Abstract

Anaemia of chronic disease (ACD), the most frequent anaemia among hospitalized patients, develops under chronic inflammatory disorders such as chronic infections, cancer or autoimmune diseases. A number of different pathways contribute to ACD, such as diversion of iron traffic, a diminished erythropoiesis, a blunted response to erythropoietin, erythrophagocytosis and bone marrow invasion by tumour cells and pathogens. Nevertheless, ACD is a reflection of an activated immune system and possibly results from an innovative defence strategy of the body in order to withdraw the essential growth factor iron from invading pathogens and to increase the efficacy of cell-mediated immunity.

Diagnosis of ACD can be assessed by examination of chances in serum iron parameters with low to normal serum iron, transferrin saturation and transferrin concentrations on the one hand and normal to increased ferritin, zinc protoporphyrin IX and cytokine levels on the other side. Therapy of ACD includes the cure of the underlying the disease. Apart from this transfusions for rapid correction of haemoglobin levels, and human recombinant erythropoietin for prolonged therapy are used. However, response rates to recombinant erythropoietin are sometimes low. Iron alone should be strictly avoided due to its growth-promoting effect towards micro-organisms and tumour cells and because of it capacity to inhibit T-cell-mediated immune effector pathways.

We urgently need prospective clinical trials to gain knowledge about the effects of anaemia correction and/or the use of erythropoietin towards the course of the underlying disease, to find out if a combination therapy with erythropoeitin and iron may be beneficial in ACD and to define therapeutic end-points.

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    Correspondence to: Dr. Günter Weiss, Dept. of Internal Medicine, University Hospital, Anichstr. 35, A-6020 Innsbruck, Austria. Tel: +43-512-504-3255; Fax: +43-512-504-3293; E-mail: [email protected]

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