Table 1

Clinical and immunologic characteristics of CHH patients

Patient no.SexMutationClinical characteristicsPresence before HSCT
Age at transplantation, yDonorConditioningGraft stability at last controlTransplant-related complication
OutcomeFollow-up, y
AutoimmunityBM failureOrgan sequlaeUp to 1 y after HSCTBeyond 1 y after HSCT
12-25 dup/+post(STOP)T Omenn syndrome No No No < 1 (8 mo) MSD Busulfan/cyclophosphamide 90% donor on T cells30% donor on B cells70% on myeloid cells None None Alive and well 11 
A214T/G146A Omenn syndrome No No No < 1 (8 mo) Haploidentical father Busulfan/cyclophosphamide 100% donor on lymphocytes100% recipient on myeloid cells None Severe autoimmune thrombopenia leading to cerebral hemorrhage; CMV primoinfection with lung disease hemorrhage Died 4 y after HSCT due to autoimmunity 
40G>A/+63C>T Chronic intractable diarrhea with failure to thrive Autoimmune enteropathy Yes, transient No 1.9 MUD Busulfan/cyclophosphamide Donor chimerism 100% (whole blood) EBV-lymphoproliferative disorder None Alive and well 8.5 
n.a. Adenovirus hepatitis; failure to thrive No Yes Yes, liver function disorder due to adenovirus hepatitis 2.3 Haploidentical mother Busulfan/fludarabine n.a. Engraftment failure; Klebsiella sepsis; generalized adenovirus infection n.a. Died 6 mo after HSCT due to adenovirus infection n.a 
g-25_11trip/g.96_97dup Multiple bacterial pneumonias; varicella pneumonitis; growth hormone deficiency Yes, autoimmune hemolytic anemia No Yes, lung bronchiectasis 2.5 MSD Busulfan/cyclophosphamide 100% donor (whole blood) None None(growth hormone deficiency treated? growth hormone insufficiency substitution) Alive and well 16 
n.a. Recurrent lung infections No No Yes, lung bronchiectasis 2.5 Haploidentical father Busulfan/fludarabine/Thiotepa n.a. Engraftment failure; generalized adenovirus infection n.a. Died 7 mo after HSCT due to adenovirus infection n.a. 
0-4 dup/−13-22tripl Recurrent fungal infections; chronic diarrhea with failure to thrive No No No 2.5 MUD Busulfan/cyclophosphamide 100% donor chimerism (whole blood) Acute GVHD grade II Acute nephritis: 6 y post-HSCT Alive and well 
35C>7/70A>G Pure red cell aplasia Yes, erythrodermia Yes No 2.5 MUD Busulfan/cyclophosphamide 100% donor (whole blood) Mild veno-occlusive disease; mild acute GVHD Pneumococcus sepsis Died 29 mo after HSCT due to pneumococcus sepsis 2.5 
Homozygous 70 A>G Persistent EBV viremia No No No 2.6 MSD Busulfan/cyclophosphamide 100% donor (blood) None None Alive and well 2.5 
10 insT195/C63T Several pneumonias and chronic diarrhea; development of aplastic anemia No Yes, aplastic anemia; no virus was found as etiology No MSD Busulfan/cyclophosphamide 100% donor (whole blood: mononuclear cells, granulocytes) None None Alive and well 12 
11 154 G>C Persistent infection with EBV, herpes simplex virus, and CMV No No Bilateral interstitial pneumonitis and bronchiectasis on high-resolution computed tomography 3.5 mMUD Campath/treosulfan/cyclophosphamide 100% donor (whole blood) Pulmonary hemorrhage and multiorgan failure leading to death at day +32 n.a.  n.a. 
12 Homozygous 70 A>G Persistent EBV viremia; Adenovirus enteritis; HHV-6 viremia infection of the gut with small round structured virus No Yes, EBV-related red cell aplasia No 4.5 MUD Busulfan/cyclophosphamide Donor chimerism94% on T cells, 90% on B cells, 76% on myeloid cells Pneumonitis; HHV-6 infection None Alive and well 
13 g.-20_4dup/g.4C>T Chronic lung and ear infections; intestinal malabsorption with severe failure to thrive; growth hormone deficiency Yes, autoimmune hemolytic anemia, autoimmune hypothyroidism, and autoimmune enteropathy No Yes, lung bronchiectasis 5.9 MUD Busulfan/fludarabine Donor chimerism 94% on mononuclear cells, 80% on neutrophils Cutaneous candida infection; BK viremia Persisting growth hormone deficiency (substituted) Alive and well 
14 n.a. Severe varicella infection; failure to thrive; EBV-related large B cell lymphoma with central nervous system compromise Yes, severe eczema Yes, transient No 11 MUD Fludarabine/melphalan n.a. Gram-positive sepsis; lung aspergillosis; hemorrhagic cystitis due to BK virus None Alive and well 
15 4C>T/13db dup Chronic diarrhea; persistent EBV infection; chronic human papillomavirus infection; chronic granulomatous ulcerative skin lesions No No Yes, chronic interstitial pneumonitis and bronchiectasis with oxygen needed at night 16.8 MUD Fludarabine/melphalan n.a. Mild cutaneous GVHD None Alive and well 1.6 
16 n.a. Severe varicella infection; EBV-related non-Hodgkin lymphoma; chronic granulomatous ulcerative skin lesions No Yes, CMV-related infection Yes, lung bronchiectasis secondary to varicella pneumonitis and primary lung lymphoma 19 MSD Busulfan/cyclophosphamide 100% donor (whole blood) Lung aspergillosis and candidiasis; CMV gastrointestinal disease; sinocerebral mucormycosis None Died 10 mo after HSCT due to cerebral mucormycosis n.a. 
Patient no.SexMutationClinical characteristicsPresence before HSCT
Age at transplantation, yDonorConditioningGraft stability at last controlTransplant-related complication
OutcomeFollow-up, y
AutoimmunityBM failureOrgan sequlaeUp to 1 y after HSCTBeyond 1 y after HSCT
12-25 dup/+post(STOP)T Omenn syndrome No No No < 1 (8 mo) MSD Busulfan/cyclophosphamide 90% donor on T cells30% donor on B cells70% on myeloid cells None None Alive and well 11 
A214T/G146A Omenn syndrome No No No < 1 (8 mo) Haploidentical father Busulfan/cyclophosphamide 100% donor on lymphocytes100% recipient on myeloid cells None Severe autoimmune thrombopenia leading to cerebral hemorrhage; CMV primoinfection with lung disease hemorrhage Died 4 y after HSCT due to autoimmunity 
40G>A/+63C>T Chronic intractable diarrhea with failure to thrive Autoimmune enteropathy Yes, transient No 1.9 MUD Busulfan/cyclophosphamide Donor chimerism 100% (whole blood) EBV-lymphoproliferative disorder None Alive and well 8.5 
n.a. Adenovirus hepatitis; failure to thrive No Yes Yes, liver function disorder due to adenovirus hepatitis 2.3 Haploidentical mother Busulfan/fludarabine n.a. Engraftment failure; Klebsiella sepsis; generalized adenovirus infection n.a. Died 6 mo after HSCT due to adenovirus infection n.a 
g-25_11trip/g.96_97dup Multiple bacterial pneumonias; varicella pneumonitis; growth hormone deficiency Yes, autoimmune hemolytic anemia No Yes, lung bronchiectasis 2.5 MSD Busulfan/cyclophosphamide 100% donor (whole blood) None None(growth hormone deficiency treated? growth hormone insufficiency substitution) Alive and well 16 
n.a. Recurrent lung infections No No Yes, lung bronchiectasis 2.5 Haploidentical father Busulfan/fludarabine/Thiotepa n.a. Engraftment failure; generalized adenovirus infection n.a. Died 7 mo after HSCT due to adenovirus infection n.a. 
0-4 dup/−13-22tripl Recurrent fungal infections; chronic diarrhea with failure to thrive No No No 2.5 MUD Busulfan/cyclophosphamide 100% donor chimerism (whole blood) Acute GVHD grade II Acute nephritis: 6 y post-HSCT Alive and well 
35C>7/70A>G Pure red cell aplasia Yes, erythrodermia Yes No 2.5 MUD Busulfan/cyclophosphamide 100% donor (whole blood) Mild veno-occlusive disease; mild acute GVHD Pneumococcus sepsis Died 29 mo after HSCT due to pneumococcus sepsis 2.5 
Homozygous 70 A>G Persistent EBV viremia No No No 2.6 MSD Busulfan/cyclophosphamide 100% donor (blood) None None Alive and well 2.5 
10 insT195/C63T Several pneumonias and chronic diarrhea; development of aplastic anemia No Yes, aplastic anemia; no virus was found as etiology No MSD Busulfan/cyclophosphamide 100% donor (whole blood: mononuclear cells, granulocytes) None None Alive and well 12 
11 154 G>C Persistent infection with EBV, herpes simplex virus, and CMV No No Bilateral interstitial pneumonitis and bronchiectasis on high-resolution computed tomography 3.5 mMUD Campath/treosulfan/cyclophosphamide 100% donor (whole blood) Pulmonary hemorrhage and multiorgan failure leading to death at day +32 n.a.  n.a. 
12 Homozygous 70 A>G Persistent EBV viremia; Adenovirus enteritis; HHV-6 viremia infection of the gut with small round structured virus No Yes, EBV-related red cell aplasia No 4.5 MUD Busulfan/cyclophosphamide Donor chimerism94% on T cells, 90% on B cells, 76% on myeloid cells Pneumonitis; HHV-6 infection None Alive and well 
13 g.-20_4dup/g.4C>T Chronic lung and ear infections; intestinal malabsorption with severe failure to thrive; growth hormone deficiency Yes, autoimmune hemolytic anemia, autoimmune hypothyroidism, and autoimmune enteropathy No Yes, lung bronchiectasis 5.9 MUD Busulfan/fludarabine Donor chimerism 94% on mononuclear cells, 80% on neutrophils Cutaneous candida infection; BK viremia Persisting growth hormone deficiency (substituted) Alive and well 
14 n.a. Severe varicella infection; failure to thrive; EBV-related large B cell lymphoma with central nervous system compromise Yes, severe eczema Yes, transient No 11 MUD Fludarabine/melphalan n.a. Gram-positive sepsis; lung aspergillosis; hemorrhagic cystitis due to BK virus None Alive and well 
15 4C>T/13db dup Chronic diarrhea; persistent EBV infection; chronic human papillomavirus infection; chronic granulomatous ulcerative skin lesions No No Yes, chronic interstitial pneumonitis and bronchiectasis with oxygen needed at night 16.8 MUD Fludarabine/melphalan n.a. Mild cutaneous GVHD None Alive and well 1.6 
16 n.a. Severe varicella infection; EBV-related non-Hodgkin lymphoma; chronic granulomatous ulcerative skin lesions No Yes, CMV-related infection Yes, lung bronchiectasis secondary to varicella pneumonitis and primary lung lymphoma 19 MSD Busulfan/cyclophosphamide 100% donor (whole blood) Lung aspergillosis and candidiasis; CMV gastrointestinal disease; sinocerebral mucormycosis None Died 10 mo after HSCT due to cerebral mucormycosis n.a. 

CHH was established on classical clinical features in all but 2 study patients.

AIHA indicates autoimmune hemolytic anemia; HHV-6, human herpesvirus type 6; mMUD, mismatched MUD; MSD, matched sibling donor; and n.a., not available.

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