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Researchers Try to Identify Origins of Abnormal Cells in Refractory Celiac Disease Type II

Celiac.com 09/21/2012 - Refractory celiac disease type II (RCDII) is a severe complication of celiac disease that occurs when symptoms and intestinal damage continue even when the patient adopt a gluten-free diet. Refractory celiac disease marked by abnormal intraepithelial lymphocytes (IELs) of unknown origin that display an atypical CD3(-)CD7(+)icCD3(+) phenotype. About 40% of patients with RCDII lymphocytes develop a dangerous and invasive lymphoma.

Photo: CC--RDECOMA team of researchers recently sought to identify possible origins of abnormal intraepithelial lymphocytes in refractory celiac disease type II.

The research team included F. Schmitz; T.M. Tjon, Y. Lai; A. Thompson; Y. Kooy-Winkelaar; R.J. Lemmers; H.W. Verspaget; M.L. Mearin; F.J. Staal; M.W. Schreurs; T. Cupedo; A.W. Langerak; C.J. Mulder; J. van Bergen; and F. Koning.

In their study, the researches sought to find the physiological counterpart of these abnormal intraepithelial lymphocytes cells.

To do so, they used microarray analysis, real-time quantitative PCR and flow cytometry to compare RCDII cell lines with T-cell receptor positive (TCR(+)) IEL (T-IEL) lines. They then used their data to identify cells with an RCDII-associated phenotype in duodenal biopsies from non-refractory individuals by multicolor flow cytometry.

They found that RCDII cell lines were distinct from T-IEL lines and showed higher levels of multiple natural killer (NK) cell receptors.

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In addition to the CD3(-)CD7(+)icCD3(+) phenotype, the RCDII lines showed an absence of CD56, CD127 and CD34, compared with other lymphocyte subsets.

Moreover, they found cells matching this surface lineage-negative (Lin(-)) CD7(+)CD127(-)CD34(-) phenotype that showed a functional interleukin-15 (IL-15) receptor and comprised a substantial portion of IELs in duodenal specimens of patients without celiac disease, particularly children. They also found cells of this kind in the thymus.

For patients without celiac disease, the Lin(-)CD7(+)CD127(-)CD34(-) subset was one of four subsets within the CD3(-)CD7(+)icCD3(+) population that showed a differential expression of CD56 and/or CD127.

The results indicate that the CD3(-)CD7(+)icCD3(+) population is heterogeneous and show the existence of a Lin(-) subset that is different from T, B, NK and lymphoid tissue inducer cells.

The team hypothesizes that the IL-15 cells are the counterpart of abnormal cells that are expanded in RCDII and transformed in RCDII-associated lymphoma.

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Thank you for taking the time for sharing that info. Don't we have the best disease ever! There's got to be a better way to cut down the scarring. Yes, I've scratched till it bleed. Can't help it. It's like having a bunch of mosquito bites. Yes, only gluten free now. Still have bursts, so probably am being exposed to gluten. Will need to stop dapsone soon. Good luck with your situation.

Best Foods or Hellman's on the East Oast is Gluten free. You can make your own too! Easy! http://www.foodnetwork.com/recipes/alton-brown/mayonnaise-recipe I buy any brand of sugar.

Are you sure you do not have fractures? I fractured two vertebrae two months after my celiac disease diagnosis DOING NOTHING!!!! Turns out I have osteoporosis from untreated celiac disease. ? Consider a bone scan.

Be sure to let us know how it goes! Help keep them in business by writing a review on Find Me Gluten Free! Enjoy! ?

I'm a naturalist -- I don't use drugs, creams, etc. I do, however, scratch** the rash until I'm almost bleeding and then dump isopropyl alcohol in it -- that relieves the itch for quite some time. (Stings at first though.) I get the rashes on my legs. ANYWAY, I have found that a gluten-free diet is the only (or best) approach -- it's certainly the most natural, in my opinion. It took six months before I felt I was cleansed of gluten. I went nine months (or more) without a rash. Then, I mistakenly ate some soup with barley in it. Got the rash. I let it run its course while getting back to & staying on a gluten-free diet. My best advice is just to stay on a gluten-free diet. Be strong, brave. You can do it! ** I should clarify that when my rashes start itching, I can't help but scratch (excessively). I am not suggesting scratching yourself (with or without cause) as a means to an end. Don't scratch if you can.