Syngeneic peripheral blood stem cell transplantation with immunosuppression for hepatitis-associated severe aplastic anemia / Hepatite bagli siddetli aplastik anemi icin immunosupresyonla singeneik periferik kan kok hucre transplantasyonu.
(Care and treatment)
Hematopoietic stem cells (Transplantation)
Bone marrow (Transplantation)
Rajic, Nebojsa Todorovic, Milena
|Publication:||Name: Turkish Journal of Hematology Publisher: Aves Yayincilik Audience: Academic Format: Magazine/Journal Subject: Health Copyright: COPYRIGHT 2010 Aves Yayincilik ISSN: 1300-7777|
|Issue:||Date: Dec, 2010 Source Volume: 27 Source Issue: 4|
Hepatitis-associated aplastic anemia occurs in up to 10% of all aplastic anemia cases. Syngeneic bone marrow transplantation is rare in patients with severe aplastic anemia and usually requires pre-transplant conditioning to provide engraftment. We report on a 29-year-old male patient with hepatitis-associated severe aplastic anemia who had a series of severe infectious conditions before transplantation, including tracheal inflammation. Life-threatening bleeding, which developed after bronchoscopy, was successfully treated with activated recombinant factor VII and platelet transfusions. Syngeneic peripheral blood stem cell transplantation using immunosuppressive treatment with antithymocyte globulin and cyclosporin A without high-dose pre-transplant conditioning was performed, followed by complete hematologic and hepatic recovery. (Turk J Hematol 2010; 27: 294-8)
Key words: Aplastic anemia, hepatitis, peripheral blood stem cell transplantation, trachea, infection, bleeding
Received: September 27, 2009
Accepted: Juanuary 25, 2010
Hepatite bagli aplastik anemi, tum aplastik anemi olgularinin %10'undan daha az bir oranda meydana gelir. Siddetli aplastik anemili hastalarda singeneik kemik iligi transplantasyonu nadir olup, genellikle hibritlesmeyi saglamak icin nakil oncesi sartlandirma gerektirmektedir. Transplantasyondan once, trakea enflamasyonu da dahil olmak uzere siddetli enfeksiyonlar geciren hepatite bagh siddetli aplastik anemili 29 yasinda erkek bir hastaya iliskin bir rapor sunulmustur. Bronkoskopiyi takiben gelisen yasami tehdit eden kanama, aktive edilmis rekombinant faktor VII ye platelet transfuzyonlanyla basarili sekilde tedavi edilmistir. Yuksek doz nakil oncesi sartlandirma olmaksizin, antitimosit globulin ve sikiosporin A ile immunosupresif tedavi yontemiyle singeneik periferikkan kok hucre transpiantasyonu gercekletirilmi ve ardindan tam hematolojik ve hepatik iyileme gozlenmitirl (Turk J Hernatol 2010; 27.294-8)
Anahtar kelimeler: Aplasti Anemi, hepatit, periferik kan kok hucre transpiantasyonu, trake, enfeksiyon, kanama
Geli tarihi: 27 Eylul 2009
Kabul tarihi: 25 Ocak 2010
Hepatitis-associated aplastic anemia is a well-described disease that occurs in 2 to 5% of aplastic anemia cases in the West, and in 4 to 10% in the Far East (1). Hepatitis of the hepatitis-associated aplastic anemia does not appear to be caused by any of the known hepatitis viruses (1), (2). Syngeneic bone marrow transplantation in patients with severe aplastic anemia (SAA) is rare, and usually requires pre-transplant conditioning to provide engraftment (3), (4).
We report a patient with hepatitis-associated SAA who was successfully treated with syngeneic peripheral blood stem cell (PBSC) transplantation after a series of infectious and bleeding complications. To our best knowledge, this is only the second published case of syngeneic PBSC transplantation in hepatitis-associated SAA (5). The patient gave informed consent for review of his medical records and publication of this case.
A 29-year-old male patient presented with fatigue, fever and skin and mucosal bleeding at the end of January 2008. He has a twin brother.
Initial laboratory findings showed severe pancytopenia and elevation of bilirubin and liver enzymes (Table 1, Day -116). Acquired idiopathic SAA was diagnosed following bone marrow biopsy, which indicated less than 10% cellularity. A series of tests were performed including hepatitis C virus (HCV), HBV, human immunodeficiency virus (HIV), anti-nuclear antibody (ANA), and Ham and Hartman test, which were all negative. Cytogenetics evaluation was normal. The patient was completely dependent on platelet and packed red blood cell (RBC) transfusions in order to control the bleeding and anemia.
There was a severe deterioration in the patient's liver condition, with development of jaundice and an increase in blood liver enzyme concentrations, at the beginning of March 2008 (Table 1, Day -77). In mid-March, the patient received mycophenolate mofetil 750 mg twice daily, together with 5 [micro]g/kg/d of recombinant human granulocyte colony-stimulating factor (G-CSF) and 1 mg/kg/day of methyl-prednisolone. The patient developed diabetes mellitus, which required regular short-acting insulin treatment and necessitated discontinuation of corti-costeroid treatment. Combined mycophenolate mofetil and G-CSF treatment caused elevation of granulocytes to 1.3 x [10.sup.9]/L in the second half of April, but showed no improvement in the platelet count (Table 1, Day -30). The improvement in RBC was the result of RBC transfusions. From the beginning of the disease until the end of April, the patient suffered two episodes of enterococcal sepsis and pneumonia and four febrile episodes.
HLA typing was performed after repeated attempts. His twin brother was HLA identical (PCR-SSP A*01-, B*08 B*35, DRB1*03-). We decided to perform syngeneic PBSC transplantation using anti-thymocyte globulin (ATG) and cyclosporin A as an immunosuppressive regimen without high-dose chemotherapy conditioning.
The transplantation procedure was postponed because the patient developed fever, hemoptysis and a sensation of a foreign body in his throat at the initial day of the planned conditioning regimen in April. Inspiratory stridor was auscultated over the trachea. Indirect laryngoscopy showed no signs of a laryngeal disease. A computed tomography (CT) scan showed a thickening of the anterior wall of the trachea, with internal air pockets, mucosal erosion and intraluminal soft tissue formations (Figure 1 a).The patient received liposomal amphotericin and antibiotics. A bronchoscopy was performed with a support of platelet transfusions and fresh frozen plasma, because of slightly prolonged prothrombin time. This caused extensive bleeding from the trachea, which was life-threatening given the concurrent development of alveolar hemorrhage and global respiratory insufficiency (Figure 1b). The patient received one dose of recombinant factor (rF) Vita 90 [micro]g/kg and platelet transfusion, after which the bleeding was markedly reduced. A week later, the fever stopped and the respiratory insufficiency was eliminated, but the patient still suffered from hemoptysis. A decision was made to start the transplantation procedure. Mycophenolate mofetil and G-CSF were discontinued before transplantation. The patient was still severely pancytopenic before transplantation, and exhibited hepatitis with some signs of improvement (Table 1, Day -4).
[FIGURE 1 OMITTED]
G-CSF was given as 10 [micro]g/kg/day to mobilize the donor's PBSCs. A large volume apheresis specimen was obtained using peripheral vein access with a Cobe-Spectra cell separator on Day 5 of mobilization. The cell harvest, with a total of 7.8 x [10.sup.8]/kg of MNC, 4.37 x [10.sup.8]/kg of CD3+, 11.7 x [10.sup.6]/kg of CD34+, and 12.9 x [10.sup.6]/kg of CD133+ cells, was infused on Day 0, following immunosuppression, as follows: 8.5 mg/kg/day of ATG (Fresenius) for 4 days (from Day -4 to -1) and 5 mg/kg/day of cyclosporin A intravenous (i.v.) in two equal doses for 7 days (from Day -1 to Day 6), followed by a switch to oral cyclosporin A. Mycophenolate mofetil was added on Day +14 as 1 g twice daily due to persistent thrombocytopenia and anemia. The patient received G-CSF as 5 [micro]g/kg after PBSC infusion until white blood cell (WBC) recovery. He also received standard prophylactic antibacterial, antifungal and antiviral treatments.The transplant took place without any febrile episodes or other complications. Neutrophil engraftment was rapid. The granulocytes were over 1.0 x [10.sup.9]//L on Day +8 (Table 1). The final RBC transfusion was on Day +16, and the final platelet transfusion on Day +27. The platelet number reached 100 x [10.sup.9]//L on Day +48 (Table 1), whereas RBC reached 100 g/L on Day +79. The patient was discharged from the hospital on Day +34. A follow-up CT scan of the trachea showed resolution of the lesions, with minor scarring. A complete resolution of the patient's liver disease was established. Diabetes mellitus was well controlled through diet. A follow-up bone marrow biopsy showed normal findings.Mycophenolate mofetil was discontinued, while cyciosporin A was gradually tapered. The patient is well and without signs of rejection 15 months after transplantation.
In summary, this case demonstrates concomitant hepatitis of unknown origin and SAA. The patient has a twin brother, but the transplantation was delayed for several reasons, such as severe hepatitis, unusual life-threatening tracheal complications, most likely of infectious origin, and due to repeated, unsuccessful HLA testing.
Inflammation of the tracheal wall is rarely reported in aplastic anemia, and it is usually caused by aspergillosis (6), (7). The situation was further complicated by life-threatening bleeding provoked by bronchoscopy, which was successfully treated by rFVIIa and platelet transfusions. This complication has not been previously reported in aplastic anemia. Successful off-label use of rVIIa has been reported for bleeding in cases of liver disease and in severely injured trauma patients (8), (9). It has been used rarely for bleeding complications in aplastic anemia (10).
Ultimately, we conducted a successful syngeneic transplantation using immunosuppressive treatment without high-dose pre-transplant conditioning, which is rarely reported in hepatitis-associated SAA (4). Conditioning regimens with cyclophosphamide (+ or -) ATG, or with fludarabine, cyclophosphamide (+ or -) ATG, are widely used in allogeneic settings with high rates of sustained engraftment and survival (11), (12). In the settings of syngeneic transplantation in aplastic anemia, application of cyclophosphamide in the conditioning regimen provides sustained engraftment, but increases early mortality (3). Syngeneic transplantation without conditioning is followed by a high rate of graft failure without the adverse effects on overall survival (3). The concept of syngeneic transplantation without conditioning or with ATG conditioning alone, as in our case, is therefore feasible (4), (13). Hepatitis usually precedes aplastic anemia (1), (2). In this case, hepatitis was present at the time of diagnosis and it severely deteriorated during the course of SAA. We believe that the immunosuppressive treatment may have had an important role both for the hematologic condition and for liver improvement (14). The liver improvement was rapid and complete following ATG and cyclosporin A treatment applied during the transplantation procedure In all likelihood, both SAA and hepatitis were probably caused by immune reactions (1), (2), (14), (15). In light of other studies that have explored the role of stem cells in liver injury, it is even possible that the stem cell transplantation may have contributed, to some extent, to the resolution of the patient's liver disease (16). Although hematopoietic stem cell transplantation with high-dose conditioning is generally a safe and successful treatment procedure in hepatitis-associated aplastic anemia (1), (2), (17), there is a risk of liver disease deterioration (18) .
This case confirms that rFVIIa, combined with platelet transfusion, may be effective in controlling tracheal bleeding in rare situations of tracheal infection in hepatitis-associated SAA. It also demonstrates the possibility of rapid liver disease resolution and sustained engraftment after syngeneic PBSC transplantation using immunosuppressive treatment without high-dose pre-transplant conditioning in hepatitis-associated SAA.
Conflict of Interest
No author of this paper has a conflict of interest, including specific financial interests, relationships, and/or affiliations relevant to the subject matter or materials included in this manuscript.
Address for Correspondence: M.D. Aleksandar Savic, Hajduk Veljkova 1-3 21000 Novi Sad, Serbia Phone: +381 21 484 3963 E-mail: email@example.com
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Aleksandar Savic (1), Bela Balint (2), Ivana Urosevic (1), Nebojsa Rajic (1), Milena Todorovic (3), Ivanka Percic (1), Stevan Popovic(1),
(1) Clinic of Hematology, Clinical Center of Vojvodina, Novi Sad, Serbia
(2) Institute of Transfusiology, Military Medical Academy, Belgrade, Serbia
(3) Clinic of Hematology, Clinical Center of Serbia, Belgrade, Serbia
Table 1. Laboratory findings for blood and liver function Parameters * Day # -116 -77 -30 -4 +8 +48 +250 WBC 0.2 0.345 3.15 1.83 4.2 6.09 6.81 [x[10.sup.9/]L] Neutrophils 0.069 0.107 1.3 0.354 1.57 2.43 2.66 [x[10.sup.9/]L] Hb [g/L] 46 80.4 79.9 90.6 78.9 102 117 Hct [1/1] 0.13 0.215 0.218 0.237 0.222 0.27 0.32 Pit 15.6 19.2 11.9 23.9 13 106 176 [x[10.sup.9/]L] Rtc [%] 0.3 - 0.3 0.3 0.2 4.2 1.68 AST [U/L] 67 835 460 283 32 40 22 ALT [U/L] 197 1835 1360 1099 27 49 13 Gamma-GT [U/L] 95 166 449 285 34 35 13 Total bilirubin 25 157 51 56 18 26 17 [[mu]mol/L] Direct bilirubin 7.2 68.4 39.9 14.3 4.9 6.7 3.9 [[mu]mol/L] upper normal values: AST 37 U/L, ALT 40 U/L, gamma-GT 55 U/L, Total bilirubin 21 [micro]mol/L, direct bilirubin 4.2 [micro]mol/L # - before transplantation, + after transplantation
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