[CIS-PAGID] Transplantation for APECED ?. .
Desa Lilic
desa.lilic at newcastle.ac.uk
Thu Jul 14 11:10:54 EDT 2011
Hi Bob
I attach our anti-IL-17 paper (collaboration with Jean-Laurent Casanova at Rockefellar) where one of the 2 first authors is Rainer Doffinger in Cambridge who does anti-IFN as well as anti-Th-17 autoantibody evaluation (it might be best to communicate with him directly about what your needs are - rd270 at cam.ac.uk). J-L's group also did this (it's closer to home for you) but I don't think they offer them routinely.
I also attach our previous paper on the diaganostic value of anti-IFN aabs (in collaboration with Nick Willcox - Oxford who was the first to describe them - PLoS 2006) but they do not offer them routinely.
Hope this helps. All best
desa
>-----Original Message-----
>From: pagid-bounces at list.clinimmsoc.org [mailto:pagid-
>bounces at list.clinimmsoc.org] On Behalf Of Nelson, Robert P Jr
>Sent: 14 July 2011 15:43
>To: 'pagid at list.clinimmsoc.org'
>Subject: Re: [CIS-PAGID] Transplantation for APECED ?. .
>
>Dr. Lilic,
>
>I would like further details regarding the anti-type I interferon and
>anti-IL-17 antibody testing. Thanks.
>
>Bob
>
>Robert P. Nelson Jr., MD
>Professor of Medicine and Pediatrics
>Divisions of Hematology/Oncology
>535 Barnhill Dr. Ste 473
>Indianapolis, IN 46202
>Telephone: 317-948-1186
>E-mail: ronelson at iupui.edu
>pager: 317-312-1773
>
>-----Original Message-----
>From: pagid-bounces at list.clinimmsoc.org [mailto:pagid-
>bounces at list.clinimmsoc.org] On Behalf Of Desa Lilic
>Sent: Thursday, July 14, 2011 5:39 AM
>To: 'pagid at list.clinimmsoc.org'
>Cc: 'Mario.Abinun at newcastle.ac.uk'
>Subject: [CIS-PAGID] Transplantation for APECED ?. .
>
>Our understanding of APECED as a uniquely thymic defect may have been
>biased by mouse models that only partially reflect human disease. Recent
>data on anti-cytokine autoantibodies to IFN type 1 (PLoS 2006) and Th-17
>(JEM 2010) points to more complex mechanisms of autoimmunity than just
>defective central tolerance due to lack of ectopic expression of tissue
>specific antigens in AIRE-mutated thymi (thymic secretion and
>presentation of cytokines has been documented but does not prevent
>autoimmunity - see PLoS 2006). Also, a role for AIRE in peripheral
>antigen presenting cells is well recognised but poorly understood.
>Importantly, we and others have reported T regulatory cell defects in
>APECED patients that may have a crucial role in the autoimmune pathology
>of APECED patients (JACI 2005, J Autoimmunity 2010, Scan J Immunol 2011)
>
>Based on the above and the fact that this young lady suffers with what
>seems to be aplastic anemia due to bone marrow insufficiency, I would
>not dismiss the possibility that allogeneic HCT could be beneficial.
>However, before focusing on HCT, it may be worth considering a trial of
>alemtuzumab (Campath) - based on personal experience of my colleague
>(and husband...) Dr Mario Abinun, Paediatric Immunologist, who observed
>a good clinical and histological response in a young APECED lad with
>severe autoimmune hepatitis.
>
>Lastly, as regards diagnostic anti-cytokine antibodies in APECED pts
>(btw - IFN type 1 are more sensitive but as specific as Th-17 aabs) we
>can do this in the UK so pls let me know if you need further details.
>However, diagnostic IL-17 production (for other CMC subgroups) is not
>routinely available.
>
>Desa Lilic MD MSc PhD FRCPath
>Consultant & Hon Clin Sen Lecturer in Immunology
>Newcastle University
>
>
>>-----Original Message-----
>>From: pagid-bounces at list.clinimmsoc.org [mailto:pagid-
>>bounces at list.clinimmsoc.org] On Behalf Of Conley, Mary Ellen
>>Sent: 13 July 2011 19:31
>>To: 'pagid at list.clinimmsoc.org'
>>Subject: Re: [CIS-PAGID] Transplantation for APECED ?. .
>>
>>Maybe we can take a different point of view. Some patients with
>>DiGeorge Syndrome have been treated with allogeneic transplants (Blood.
>>2010 Sep 30;116(13):2229-36) with some patients doing moderately well.
>>This suggests that the mature T cells in the graft may provide
>>sufficient protection from infection. If there were a perfect matched
>>sib or MUD for your patient, you might be able to use thymectomy and an
>>ablative prepartive regimen. Yes, I know, its a radical approach. But
>>it might work.
>>Mary Ellen
>>
>>
>>
>>
>>
>>
>>Mary Ellen Conley, MD
>>Department of Immunology/ Mail Stop 351
>>St. Jude Children's Research Hospital
>>262 Danny Thomas Place
>>Memphis, TN 38105-3678
>>FAX 901-595-3977
>>TEL 901-595-2576
>>
>>
>>-----Original Message-----
>>From: pagid-bounces at list.clinimmsoc.org [mailto:pagid-
>>bounces at list.clinimmsoc.org] On Behalf Of Notarangelo, Luigi
>>Sent: Wednesday, July 13, 2011 1:09 PM
>>To: pagid at list.clinimmsoc.org
>>Subject: Re: [CIS-PAGID] Transplantation for APECED ?. .
>>
>>Dear Elie:
>>
>>As you pointed out, HCT should not work for APECED because Aire is
>>mostly expressed by mTECs. However, it is interesting to know that
>>conflicting results have been obtained with HCT in aire KO mice, with
>>two groups reporting either complete failure or successful correction
>of
>>autoimmunity. I do not think that anybody has looked carefully into
>>this, and I wonder whether: a) "resetting" of the immune system could
>be
>>explanation for success 9at least in some cases); or b) aire expression
>>by donor-derived myeloid cells might partially compensate for the
>>defect. In any case, I think there is insufficient evidence (if any)
>>that HCT would work, unless you bet specifically on resetting of the
>>immune system (but even so, attempts with autologous HCT for
>>autoimmunity are less popular now than they were until few years ago, I
>>guess?)
>>
>>Gigi
>>
>>
>>Luigi D. Notarangelo, M.D.
>>Jeffrey Modell Chair of Pediatric Immunology Research in Boston
>>Director, Research and Molecular Diagnosis Program on Primary
>>Immunodeficiencies Division of Immunology, Children's Hospital
>Professor
>>of Pediatrics and Pathology, Harvard Medical School Karp Building, 9th
>>floor, Rm 09210
>>1 Blackfan Circle
>>Boston, MA 02115
>>USA
>>
>>(tel) (617)-919-2276
>>(fax) (617)-730-0709
>>
>>
>>Secretary: Luisa Raleza
>>email: luisa.raleza at childrens.harvard.edu
>>
>>
>>
>>
>>On 7/13/11 12:04 PM, "Elie Haddad" <elie.haddad at umontreal.ca> wrote:
>>
>>Dear all,
>>I follow a 22 years old girl with APECED (proven AIRE mutation) with
>>very severe autoimmunity.
>>The only treatment that was considered efficient was Rituximab for many
>>years (since 2005) and she was treated by one injection every 6 months.
>>I informed the patient about the risks of repeating Rituximab but she
>>said that her endocrinologic autoimmunity was very uncomfortable and
>the
>>only treatment that worked was Rituximab and she did not want to stop.
>>18 months ago, she presented with extensive pulmonary embolism related
>>with deep venous thrombosis (we did not understand why she did this)
>>that could be efficiently treated. During the hospitalization, we
>>noticed a very severe anemia that did not resolve and that was
>>eventually considered as autoimmune central anemia. Indeed, the anemia
>>was central, Epo was normal, there was no anti-Epo antibodies, and
>>marrow specimen showed plenty of T cells infiltrating the marrow and
>>surrounding reticulocytes (I could not see the slides, this is what
>said
>>the haematologist). To treat this autoimmune central anemia, we stopped
>>Rituximab and tried ATG + FK506 and then MMF in accordance with
>>haematologist advise. This treatment was unsuccessful and she is
>>presently transfused with red cells every 3 weeks with ferritin
>>dangerously growing up (even if somewhat stabilized by oral iron
>>chelation)... We are therefore facing a very severe autoimmune central
>>anemia that is resistant to Rituximab (that has been restarted recently
>>to control her endocrinologic autoimmunity), MMF, anti-Calcineurine,
>>ATG. She is under sub-cu IG for immunoglobulin replacement because of
>>repeated rituximab. Given the T cell infiltrate in marrow (that is not
>a
>>leukemic infiltrate), we consider that we are facing a T cell
>>autoimmunity and we don't feel that plasmapheresis could work.
>>The question is regarding bone marrow transplantation. I know it may be
>>a strange idea but our haematologist colleagues propose to perform an
>>allogenic HSCT. I would like to have your opinion. Given that AIRE
>>deficiency is a thymic disorder, allogenic HSCT should not work. The
>>only way it could work would be that thymus function in older patients
>>is not perfect and that the new immune system may not be miseducated.
>>However, if this theory works, then an autologous HSCT after < radical
>>
>>immunosuppression to "reset" the immune system should work also and
>>would be less dangerous than an allo-HSCT.
>>What do you think ? Allo ? Auto ? Has anyone already done an HSCT for
>>APECED ? HSCT (auto or allo) doesn't make any sense ? Other proposition
>>to treat this autoimmunity?
>>Thank you for your feedback.
>>Elie
>>
>>PS: sorry for the long text (it's a complicated story), and sorry for
>>the possible English mistakes from a "French" Canadian.
>>
>>
>>Elie Haddad, MD, PhD;
>>Professor of Pediatrics, University of Montreal, Head, Pediatric
>>Immunology and Rheumatology Division, CHU Sainte-Justine, 3175 Cote
>>Sainte-Catherine Montreal, QC, H3T 1C5, Canada
>>Ph: 1 514 345 4713
>>fax: 1 514 345 4897
>>e-mail: elie.haddad at umontreal.ca
>>
>>
>>
>>
>>
>>
>>Email Disclaimer: www.stjude.org/emaildisclaimer
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