Journals / Klinik Laboratuvar Araştırma Derg. / 2001 / Cilt: 5 - Sayı: 2

Reinduction of remission by immunotherapy in chronic myelogenous leukemia patients after allogeneic bone marrow transplantation

Kronik myeloid lösemide allojeneik kemik iliği transplantasyonu sonrası immünoterapi ile remisyon indüksiyonu

Pages
35–40
Publication Date
2022-10-17
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

It seems that IFN-alfa-2b and infusions of donor MNC are effective in reducing the Ph (+) clones in CML patients.

📌 3 Key Takeaways

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Objective & Hypothesis:Relapse or persistent mixed chimerism after allogeneic bone marrow transplantation (alloBMT)for chronic myelogenous leukemia (CML) are significant problems.
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Key Findings & Data:We gave interferon (IFN)-alfa 2b and donor mononuclear cells (MNC) to two patients to induce a grafi-versus-leukemia effect. ' Our patients were a 30 year-old male and a 25 year old female who underwent alloBMT for Ph (+) CML.
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Conclusion & Impact:It seems that IFN-alfa-2b and infusions of donor MNC are effective in reducing the Ph (+) clones in CML patients.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Relapse or persistent mixed chimerism after allogeneic bone marrow transplantation (alloBMT)for chronic myelogenous leukemia (CML) are significant problems. The detection and persistence of Ph (+) bone marrow cells after BMT has almost always been followed by hematological relapse . We gave interferon (IFN)-alfa 2b and donor mononuclear cells (MNC) to two patients to induce a grafi-versus-leukemia effect. ' Our patients were a 30 year-old male and a 25 year old female who underwent alloBMT for Ph (+) CML. After BMT, they had triple bone marrow chimerism, and & gradual increase in the proportion of Ph (+) bone marrow cells. They were both in hematological remission. Starting four weeks before the first infusion of MNC, IFN-alfa-2b (lntron-A, Schering-Plough) was given at a dose of 5x106 U/m2/d subcutaneously. The cytogenetic and FISH studies showed that number of Ph (+) cells in blood and bone marrow of each patient decreased significantly two months after the first infusion. It seems that IFN-alfa-2b and infusions of donor MNC are effective in reducing the Ph (+) clones in CML patients.

Özet

Kronik myeloid lösemili (KML) hastalarda allojeneik kemik iliği transplantasyonundan (AKİT) sonra görülen relaps veya kalıcı miks kimerizm önemli problemlerdir. KİT sonrası kemik iliğinde Ph varlığı sonradan olabilecek bir hematolojik relapsı yansıtır. Hastalarımız 30 yaşında erkek ve 25 yaşında kadın olup Ph+KML için AKİT uygulandı.. KİT sonrası üçlü kemik iliği kimerizmi gösterdiler ve kemik iliği Ph (+) hücre oranında büyük oranda artış gözlendi. Her ikisi de hematolojik remisyonda idi. GVL etkisini oluşturmak için 2 hastaya interferon (IFN)-alfa-2b ve verici mononükleer hücrelerini (MNC) verildi. MNC'lerin ilk infüzyonundan 4 hafta önce IFN alfa-2b subkütan olarak 5 milyon ünite/m2 verildi. Sitogenetik ve FISH çalışmaları İle her hastanın kan ve kemik iliğinde Ph (+) hücrelerin azaldığı gözlendi. Bu sonuçlar, lFN-alfa-2b ve verici MNC infüzyonlarının KML 'li hastaların Ph (+) klonların azalmasında etkili olduğunu göstermektedir.

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Cite This Article

GÜRMAN, G., ÖZCAN, M., SUNGUROĞLU, A., BEKSAÇ, M., UYSAL, A., KONUK, N., KOÇ, H., ARSLAN, Ö., AKAN, H., İLHAN, O. (2022). Reinduction of remission by immunotherapy in chronic myelogenous leukemia patients after allogeneic bone marrow transplantation. Klinik Laboratuvar Araştırma Derg., Cilt: 5 - Sayı: 2, 35–40. https://ajindex.com/articles/573729