eprintid: 1558373 rev_number: 32 eprint_status: archive userid: 608 dir: disk0/01/55/83/73 datestamp: 2017-06-03 19:16:40 lastmod: 2021-12-05 00:45:53 status_changed: 2018-01-25 15:01:04 type: article metadata_visibility: show creators_name: Salaman, MR creators_name: Isenberg, DA title: The immunological personality of close relatives of SLE patients ispublished: pub divisions: UCL divisions: B02 divisions: C10 divisions: D17 divisions: G90 keywords: NK and NKT cells, Relatives of lupus patients, immunoglobulin regulation, immunological abnormalities, lupus pathogenesis note: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ abstract: Immunological abnormalities seen in relatives of patients with autoimmune disorders can be useful in understanding the pathogenesis of the disease since, unlike in patients, they cannot result from the disease process or drug treatment. In this article we present a brief overview of our studies of the basic immunological status of close relatives of SLE patients. We looked at blood levels of IgG, IgM and antibodies to double-stranded DNA, as well as at NK cell numbers and cytotoxic activity and the levels of NKT, B and T cells. As many as 60% of relatives showed one or more abnormalities in these assays. Most notably there were increased levels of IgG in male and female relatives and a reduction of IgM in females. IgG correlated inversely with NKT cell numbers adding strength to the concept that the presence of IgG autoantibodies in patients is due to impaired regulation by NKT cells. IgM, on the other hand, correlated inversely with NK cells which may thus have a role in bringing about the reduced IgM seen in some patients. Immunological abnormalities were found to be more often associated with parents and offspring of patients than with their siblings, pointing to the involvement of environmental or epigenetic influences in lupus pathogenesis. date: 2017-12-01 date_type: published official_url: http://doi.org/10.1177/0961203317707826 oa_status: green full_text_type: pub language: eng primo: open primo_central: open_green article_type_text: Journal Article verified: verified_manual elements_id: 1296880 doi: 10.1177/0961203317707826 lyricists_name: Isenberg, David lyricists_id: DAISE40 full_text_status: public publication: Lupus volume: 26 number: 14 pagerange: 1513-1516 event_location: England issn: 1477-0962 citation: Salaman, MR; Isenberg, DA; (2017) The immunological personality of close relatives of SLE patients. Lupus , 26 (14) pp. 1513-1516. 10.1177/0961203317707826 <https://doi.org/10.1177/0961203317707826>. Green open access document_url: https://discovery.ucl.ac.uk/id/eprint/1558373/1/Isenberg_0961203317707826.pdf