[CIS PIDD] [cis-pidd] ADA2 deficiency?

Mon May 8 03:51:25 EDT 2017

You may still want to send a serum sample to Mike Hershfield at Duke's? Contact him directly if you feel it may be needed...

On therapy, I agree fully with Elie.

Oyl Mikko Seppänen
Harvinaissairauksien yksikkö (HAKE)
[cid:]

Head, Rare Disease Center,
Helsinki University Hospital (HUH)
FINLAND

phone +358 947180201
GSM +358 50 4279606
fax +358 9 47174703

CIS-PIDD <cis-pidd at lists.clinimmsoc.org<mailto:cis-pidd at lists.clinimmsoc.org>> kirjoitti 5.5.2017 kello 15.28:

That's what I wanted to know.. if anti-tnf helped this patient.

Sent from my iPhone

On 5 May 2017, at 09:05, CIS-PIDD <cis-pidd at lists.clinimmsoc.org<mailto:cis-pidd at lists.clinimmsoc.org>> wrote:

Dear Beata,
the results of HSCT in ADA2 deficiency seem very good, as well as anti-TNF in vasculitis-like and disorders and stroke (which does not seem to be the main feature of your patient).
Did you have the plan to propose a HSCT for your patient ? What about possible donors ?
All the best
Elie

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<mailto:elie.haddad at umontreal.ca>

Le 2017-05-04 à 08:00, CIS-PIDD <cis-pidd at lists.clinimmsoc.org<mailto:cis-pidd at lists.clinimmsoc.org>> a écrit :

The patient developed a CVID-like clinical picture post RTX for her Evans-syndrome. She has been stable and doing very well on IVIG +MMF for many years.

Beata

Beata Derfalvi  M.D., Ph.D.
Pediatric Immunologist, Rheumatologist
Associate Professor
Dept. of Pediatrics, Dalhousie University/IWK Health Centre
5850 University Avenue
Halifax, Nova Scotia B3K 6R8 CANADA
ph 902-470-8481
fax 902-470-7812

From: cis-pidd at lyris.dundee.net<mailto:cis-pidd at lyris.dundee.net> [mailto:cis-pidd at lyris.dundee.net] On Behalf Of CIS-PIDD
Sent: Wednesday, May 03, 2017 4:32 PM
To: CIS-PIDD
Subject: RE: [cis-pidd] ADA2 deficiency?

I am a lab person. This is Dr. Derfalvi’s patient. She can answer your question.
Thank you,
Yenhui

From: cis-pidd at lyris.dundee.net<mailto:cis-pidd at lyris.dundee.net> [mailto:cis-pidd at lyris.dundee.net] On Behalf Of CIS-PIDD
Sent: Wednesday, May 03, 2017 1:34 PM
To: CIS-PIDD <cis-pidd at lyris.dundee.net<mailto:cis-pidd at lyris.dundee.net>>
Subject: Re: [cis-pidd] ADA2 deficiency?

I agree it fits the genetic founds... please let us know the uptakes after treatment. Whats the plan?
best

leo

2017-05-03 13:20 GMT-03:00 CIS-PIDD <cis-pidd at lists.clinimmsoc.org<mailto:cis-pidd at lists.clinimmsoc.org>>:
Dear Dr. Kumar,
Thank you very much for your feedback. Now I have more confidence in pursuing further confirmation and looking into similar cases.
Warm regards,
Yenhui

From: cis-pidd at lyris.dundee.net<mailto:cis-pidd at lyris.dundee.net> [mailto:cis-pidd at lyris.dundee.net<mailto:cis-pidd at lyris.dundee.net>] On Behalf Of CIS-PIDD
Sent: Tuesday, May 02, 2017 8:42 PM
To: CIS-PIDD <cis-pidd at lyris.dundee.net<mailto:cis-pidd at lyris.dundee.net>>
Subject: Re: [cis-pidd] ADA2 deficiency?

The phenotype fits with DADA2, you're probably right.

Ashish
Ashish Kumar, MD, PhD
Associate Professor
Director, Pediatric Hematology-oncology fellowship program
Director, Langerhans cell histiocytosis center
Cincinnati Children's Hospital Medical Center

On May 2, 2017, at 5:25 PM, CIS-PIDD <cis-pidd at lists.clinimmsoc.org<mailto:cis-pidd at lists.clinimmsoc.org>> wrote:
Dear All,

We tested a sample from a young girl with early-onset ITP and autoimmune hemolytic anemia with chronic splenomegaly and variable abdominal lymphadenopathy. The sample was sequenced with NGS technology using our 250 gene primary Immunodeficiency panel. A homologous insertion in exon 2 of CECR1 gene was identified. The variant Arg49Alafs*13 creates a frame shift starting at codon Arg49. The new reading frame ends in a stop codon 13 positions downstream.  The frequency of this variant is 0.024 in the general population. Her parents are first cousins, Middle-Eastern ethnicity.

Although ADA2 gene deficiency is characterized by various forms of auto inflammatory vasculitis it has a highly variable clinical expression.  Two cases with the same Arg49Alafs*13 variant and similar clinical expression with our patient were described in a recent paper by Dr. Polina Stepensky et al (J Pediatr 2016;177:316-2).  My understanding is that these two cases were both tested as ADA2 low activity by Dr. Hershfield’s group in Duke.

I strongly feel the variant Arg49Alafs*13 is accountable for this girl’s disease. If it is confirmed, she may get corresponding treatment. Please let me know your thoughts.

Thank you for your time and input.
Yenhui

Yenhui Chang, PhD
Immunogenetics
Johns Hopkins All Children’s Hospital
St. Petersburg, FL

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--

Leonardo Oliveira Mendonça
Médico Especialista em Imunologia Clínica e Alergia, Doenças Autoimunes e Autoinflamatórias
Médico Especialista em Clínica Médica/Medicina Interna

Leonardo Oliveira Mendonça, MD
Specialist in Clinical Immunology and Allergy, Autoimmune and Autoinflammatory disorders
Consultant Specialist in Internal Medicine

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