The Open Rheumatology Journal

ISSN: ― Volume ,

Vitamin D and Anti-Phospholipid Antibody Syndrome: A Comprehensive Review

Roberta Gualtierotti1, 2, *, Alessio Di Giacomo3, Elena Raschi3, Maria Orietta Borghi2, 3, Pier Luigi Meroni3
1 Lupus Clinic, Department of Rheumatology and Clinical Sciences, ASST Pini-CTO, Milan, Italy
2 Department of Clinical Sciences and Community Health, University of Milan, Cardinal Ferrari, 1 20122, Milan, Italy
3 Immunorheumatology Research Laboratory, Instituto Auxologico Italiano, IRCCS, Milan, Italy


Vitamin D is a steroid hormone that exerts a variety of biological effects that range from the well-known regulation of bone metabolism to the modulation of cellular growth, of apoptosis, and the regulation of both innate and adaptive immunity. Evidence supports a correlation between low vitamin D levels and a high risk to develop chronic inflammatory diseases including autoimmune diseases.

Anti-phospholipid antibody (aPL) syndrome (APS) is an autoimmune chronic condition characterized by recurrent arterial and/or venous thrombosis and/or obstetric complications associated with persistent aPL positivity. Secondary prevention of thrombosis is widely accepted in these patients and relies on life-long anticoagulant drugs. On the contrary, primary prevention in isolated aPL positivity in healthy carriers and treatment of obstetric manifestations in APS are still debated.

Epidemiological data have shown that vitamin D deficiency (serum levels <30 ng/ml) is frequent in APS patients and that it may be associated with an increased risk of thrombosis in these patients. Experimental data show that vitamin D is able to reduce the expression of adhesion molecules, of toll-like receptors and the secretion of proinflammatory chemokines, thus playing a protective role on endothelial activation and the subsequent development of thrombosis in APS.

Although these observations need to be confirmed in prospective studies and randomized clinical trials, it is tempting to speculate that vitamin D supplementation could be very useful for the prevention of clinical manifestations in APS patients, in particular as a primary prevention countermeasure in aPL carriers.

Keywords: Anti-phospholipid syndrome, Vitamin D, Endothelial cells, Inflammation, Toll-like receptor, TLR, Adhesion molecules, IFN.

Article Information

Identifiers and Pagination:

Year: 2018
Volume: 12
Issue: Suppl-1, M5
First Page: 248
Last Page: 260
Publisher Id: TORJ-12-248
DOI: 10.2174/1874312901812010248

Article History:

Received Date: 4/2/2017
Revision Received Date: 28/3/2018
Acceptance Date: 22/4/2018
Electronic publication date: 27/12/2018
Collection year: 2018

© 2018 Gualtierotti et al.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: ( This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Department of Clinical Sciences and Community Health, University of Milan, Cardinal Ferrari, 1 20122, Milano, Italy; Tel: 0258296272; E-mail:

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