Castleman-Kojima disease

disease
On this page

Also known as TAFRO syndromethrombocytopenia-anasarca-fever-renal insufficiency-organomegaly syndrome

Summary

Castleman-Kojima disease (MONDO:0018702) is a disease with 9 cohort genes. The dominant Reactome pathway is Transcriptional regulation by RUNX1 (4 cohort genes).

At a glance

  • Prevalence: <1 / 1 000 000 (Worldwide) [Orphanet-validated]
  • Cohort genes: 9
  • ClinVar variants: 7
  • Phenotypes (HPO): 25

Clinical features

Epidemiology

Prevalence records

2 prevalence record(s), Orphanet:

TypeClassValueGeographyValidation
Cases/families28WorldwideValidated
Point prevalence<1 / 1 000 000WorldwideValidated

Signs & symptoms

Clinical features (HPO)

25 HPO clinical features (Orphanet curated; top 25 by frequency):

HPO IDTermFrequency
HP:0001433HepatosplenomegalyVery frequent (80-99%)
HP:0001873ThrombocytopeniaVery frequent (80-99%)
HP:0002716LymphadenopathyVery frequent (80-99%)
HP:0011227Elevated circulating C-reactive protein concentrationVery frequent (80-99%)
HP:0012050AnasarcaVery frequent (80-99%)
HP:0000083Renal insufficiencyFrequent (30-79%)
HP:0001541AscitesFrequent (30-79%)
HP:0001744SplenomegalyFrequent (30-79%)
HP:0001903AnemiaFrequent (30-79%)
HP:0001945FeverFrequent (30-79%)
HP:0001974LeukocytosisFrequent (30-79%)
HP:0002202Pleural effusionFrequent (30-79%)
HP:0002240HepatomegalyFrequent (30-79%)
HP:0003155Elevated circulating alkaline phosphatase concentrationFrequent (30-79%)
HP:0005513Increased megakaryocyte countFrequent (30-79%)
HP:0011974MyelofibrosisFrequent (30-79%)
HP:0030783Increased circulating interleukin 6 concentrationFrequent (30-79%)
HP:0031052Elevated vascular endothelial growth factor levelFrequent (30-79%)
HP:0045041Reduced circulating lactate dehydrogenase concentrationOccasional (5-29%)
HP:0002664NeoplasmExcluded (0%)
HP:0002960AutoimmunityExcluded (0%)
HP:0012156HemophagocytosisExcluded (0%)
HP:0031691Severe viral infectionExcluded (0%)
HP:0032262Pulmonary tuberculosisExcluded (0%)
HP:0032288Polyclonal elevation of circulating IgGExcluded (0%)

Identifiers

Disease identifiers

FieldValue
Canonical nameCastleman-Kojima disease
Mondo IDMONDO:0018702
Orphanet457077
ICD-111505841618
UMLSC4552543
MedGen1672503
GARD0021902
Is cancer (heuristic)no

Also known as: TAFRO syndrome · thrombocytopenia-anasarca-fever-renal insufficiency-organomegaly syndrome

Data availability: 7 ClinVar variants.

Disease family

Classification path: disease › human disease › disease by body system or component › immune system disorderhypersensitivity reaction diseasetype IV hypersensitivity diseaseautoimmune lymphoproliferative syndromeCastleman-Kojima disease

Related subtypes (8): autoimmune lymphoproliferative syndrome type 1, autoimmune lymphoproliferative syndrome type 2A, autoimmune lymphoproliferative syndrome type 2B, autoimmune lymphoproliferative syndrome type 4, autoimmune lymphoproliferative syndrome due to CTLA4 haploinsufficiency, FAS-related autoimmune lymphoproliferative immune disorder, type 3 autoimmune lymphoproliferative syndrome, autoimmune lymphoproliferative syndrome, type III caused by mutation in PRKCD

Genetics & variants

GWAS landscape

No GWAS associations recorded — common-variant (GWAS) studies don’t cover this disease (typical for Mendelian / rare diseases). See the curated gene cohort and Mendelian overlap below.

Variant details and genetic-evidence tiers

ClinVar germline variants

7 retrieved; paginated sample, class counts are floors:

5 uncertain significance, 1 pathogenic/likely pathogenic, 1 conflicting classifications of pathogenicity

ClinVarVariant (HGVS)GeneClassificationReview
666272NM_030662.4(MAP2K2):c.383C>T (p.Pro128Leu)MAP2K2Pathogenic/Likely pathogeniccriteria provided, multiple submitters, no conflicts
9861NM_000044.6(AR):c.1937C>A (p.Ala646Asp)ARConflicting classifications of pathogenicitycriteria provided, conflicting classifications
666269NM_152641.4(ARID2):c.3577A>G (p.Thr1193Ala)ARID2Uncertain significanceno assertion criteria provided
666270NM_014727.3(KMT2B):c.1108_1109del (p.Glu370fs)KMT2BUncertain significanceno assertion criteria provided
666271NM_001039396.2(MPEG1):c.661C>A (p.Leu221Ile)MPEG1Uncertain significanceno assertion criteria provided
436618NM_001754.5(RUNX1):c.259G>T (p.Gly87Cys)RUNX1Uncertain significancereviewed by expert panel
666268NM_003200.5(TCF3):c.1040A>C (p.Asn347Thr)TCF3Uncertain significanceno assertion criteria provided

Genes & proteins

Mendelian disease overlap and somatic drivers

GenCC: 0 · Orphanet: 16 · OMIM-shared: 0 · Dual-evidence (GWAS+Mendelian): 0

Orphanet rare-disease linkage (cohort genes)

GeneOrphanet IDRare disease
RUNX1Orphanet:102724Acute myeloid leukemia with t(8;21)(q22;q22) translocation
RUNX1Orphanet:521Chronic myeloid leukemia
RUNX1Orphanet:71290Familial platelet disorder with associated myeloid malignancy
RUNX1Orphanet:98850Aggressive systemic mastocytosis
TCF3Orphanet:33110Autosomal non-syndromic agammaglobulinemia
TCF3Orphanet:585956B-lymphoblastic leukemia/lymphoma with t(1;19)(q23;p13.3)
TCF3Orphanet:641375B-lymphoblastic leukemia/lymphoma with t(17;19)
KMT2BOrphanet:528084Non-specific syndromic intellectual disability
KMT2BOrphanet:589618Dystonia 28
ARID2Orphanet:1465Coffin-Siris syndrome
AROrphanet:481Kennedy disease
AROrphanet:90797Partial androgen insensitivity syndrome
AROrphanet:95706Non-syndromic posterior hypospadias
AROrphanet:99429Complete androgen insensitivity syndrome
MAP2K2Orphanet:1340Cardiofaciocutaneous syndrome
MAP2K2Orphanet:638Neurofibromatosis-Noonan syndrome

Cohort genes → proteins

9 cohort genes, 9 distinct canonical proteins.

Evidence partition

SubsetGenes
multi_evidence9

Cohort genes (full)

SymbolHGNCEnsemblUniProtNameEvidence
RUNX1HGNC:10471ENSG00000159216Q01196Runt-related transcription factor 1clinvar
TCF3HGNC:11633ENSG00000071564P15923Transcription factor E2-alphaclinvar
TCF7L1HGNC:11640ENSG00000152284Q9HCS4Transcription factor 7-like 1clinvar
KMT2BHGNC:15840ENSG00000272333Q9UMN6Histone-lysine N-methyltransferase 2Bclinvar
ARID2HGNC:18037ENSG00000189079Q68CP9AT-rich interactive domain-containing protein 2clinvar
MPEG1HGNC:29619ENSG00000197629Q2M385Macrophage-expressed gene 1 proteinclinvar
ARHGNC:644ENSG00000169083P10275Androgen receptorclinvar
AREGHGNC:651ENSG00000109321P15514Amphiregulinclinvar
MAP2K2HGNC:6842ENSG00000126934P36507Dual specificity mitogen-activated protein kinase kinase 2clinvar

Cohort function summary

Lead sentence per gene, UniProt-curated.

SymbolProtein nameFunction (lead sentence)
RUNX1Runt-related transcription factor 1Forms the heterodimeric complex core-binding factor (CBF) with CBFB.
TCF3Transcription factor E2-alphaTranscriptional regulator involved in the initiation of neuronal differentiation and mesenchymal to epithelial transition.
TCF7L1Transcription factor 7-like 1Participates in the Wnt signaling pathway.
KMT2BHistone-lysine N-methyltransferase 2BHistone methyltransferase that catalyzes methyl group transfer from S-adenosyl-L-methionine to the epsilon-amino group of ‘Lys-4’ of histone H3 (H3K4) via a non-processive mechanism.
ARID2AT-rich interactive domain-containing protein 2Involved in transcriptional activation and repression of select genes by chromatin remodeling (alteration of DNA-nucleosome topology).
MPEG1Macrophage-expressed gene 1 proteinPore-forming protein involved in both innate and adaptive immunity.
ARAndrogen receptorSteroid hormone receptors are ligand-activated transcription factors that regulate eukaryotic gene expression and affect cellular proliferation and differentiation in target tissues.
AREGAmphiregulinLigand of the EGF receptor/EGFR.
MAP2K2Dual specificity mitogen-activated protein kinase kinase 2Catalyzes the concomitant phosphorylation of a threonine and a tyrosine residue in a Thr-Glu-Tyr sequence located in MAP kinases.

Protein-family classification

Druggable: 3 · Difficult: 4 · Unknown: 2 · Druggable fraction: 0.33

Family distribution

Cohort families vs a genome-wide background (hypergeometric, BH-FDR; fold = observed/expected). Counts kept; sorted by enrichment, so the catch-all Other/Unknown bucket no longer leads.

FamilyGenesFoldFDR
Nuclear receptor142.9×0.055
Complement129.8×0.055
Transcription factor43.7×0.055
Kinase13.1×0.352
Other/Unknown20.4×0.992

Per-gene assignment

SymbolFamilyDruggable?ECInterPro (top 3)
RUNX1Transcription factornoAML1_Runt, p53-like_TF_DNA-bd_sf, p53/RUNT-type_TF_DNA-bd_sf
TCF3Transcription factornobHLH_dom, HLH_DNA-bd_sf, NeuroDiff_E-box_TFs
TCF7L1Other/UnknownnoHMG_box_dom, CTNNB1-bd_N, TCF/LEF
KMT2BTranscription factornoSET_dom, Znf_PHD, Znf_CXXC
ARID2Transcription factornoARID_dom, DNA-bd_RFX, Znf_C2H2_type
MPEG1ComplementyesMACPF, MPEG1
ARNuclear receptoryesNucl_hrmn_rcpt_lig-bd, Andrgn_rcpt, Znf_hrmn_rcpt
AREGOther/UnknownnoEGF
MAP2K2Kinaseyes2.7.12.2Prot_kinase_dom, Ser/Thr_kinase_AS, Kinase-like_dom_sf

Expression context

Cohort genes with no expression data: 0.

9 cohort genes are a single-cell marker in ≥1 SCXA experiment.

Breadth distribution (Bgee present_calls)

BucketGenes
narrow (1-5 tissues)0
moderate (6-20)0
broad (>20)9
unknown0

Top tissues across cohort

TissueCohort genes
left testis2
right testis2
epithelium of bronchus1
mucosa of paranasal sinus1
olfactory segment of nasal mucosa1
embryo1
ganglionic eminence1
ventricular zone1
aorta1
popliteal artery1
tibial artery1
lower esophagus mucosa1
pancreatic ductal cell1
secondary oocyte1
sperm1
ileal mucosa1
leukocyte1
monocyte1
nipple1
seminal vesicle1

Per-gene tissue summary (top 30)

SymbolBgee breadthFANTOM5 breadthSCXATop tissues
RUNX1253ubiquitousmarkerolfactory segment of nasal mucosa, epithelium of bronchus, mucosa of paranasal sinus
TCF3294ubiquitousmarkerganglionic eminence, ventricular zone, embryo
TCF7L1230ubiquitousmarkerpopliteal artery, tibial artery, aorta
KMT2B269ubiquitousmarkerright testis, left testis, lower esophagus mucosa
ARID2253ubiquitousmarkersperm, pancreatic ductal cell, secondary oocyte
MPEG1219broadmarkermonocyte, leukocyte, ileal mucosa
AR250ubiquitousmarkerseminal vesicle, urethra, nipple
AREG216ubiquitousmarkermucosa of urinary bladder, endometrium epithelium, right lung
MAP2K2291ubiquitousmarkermucosa of transverse colon, right testis, left testis

Protein interactions among cohort

Intra-cohort edges: 0.

Hub genes (top 10 by interactor count)

SymbolInteractor count
AR7,400
RUNX14,994
MAP2K23,789
AREG2,745
KMT2B2,639
ARID22,190
TCF7L11,635
MPEG1981
TCF3457

Structural data

PDB: 8 · AlphaFold-only: 1 · No structure: 0

Cohort genes with PDB structures (top 30)

SymbolUniProtPDB entries
ARP1027595
RUNX1Q011965
TCF3P159235
MPEG1Q2M3855
KMT2BQ9UMN64
MAP2K2P365073
ARID2Q68CP92
AREGP155141

AlphaFold-only cohort genes (top 30 by pLDDT)

SymbolUniProtpLDDT
TCF7L1Q9HCS452.59

Function

Pathway analysis

Distinct Reactome pathways touched by cohort: 155. Enrichment computed across 9 evidence-associated genes (8 with Reactome annotation).

Pathways by enrichment

Over-representation of cohort genes vs the genome-wide background (hypergeometric test, Benjamini-Hochberg FDR; fold = observed/expected over 8 annotated cohort genes). Counts and members are kept as ground-truth; sorted by enrichment.

PathwayCohort genesFoldFDRSample cohort genes
Transcriptional regulation by RUNX1473.2×1e-05RUNX1, TCF3, KMT2B, ARID2
RNA Polymerase II Transcription616.9×1e-05RUNX1, TCF3, TCF7L1, KMT2B, ARID2, AR
Gene expression (Transcription)613.4×4e-05RUNX1, TCF3, TCF7L1, KMT2B, ARID2, AR
Generic Transcription Pathway611.3×8e-05RUNX1, TCF3, TCF7L1, KMT2B, ARID2, AR
Signal Transduction67.6×7e-04RUNX1, TCF3, TCF7L1, AR, AREG, MAP2K2
RUNX1 interacts with co-factors whose precise effect on RUNX1 targets is not known275.1×0.008RUNX1, ARID2
Transcriptional regulation by RUNX3268.0×0.008RUNX1, TCF7L1
Transcriptional regulation by RUNX2263.4×0.008RUNX1, AR
Deactivation of the beta-catenin transactivating complex258.3×0.009TCF7L1, KMT2B
Developmental Biology47.2×0.020RUNX1, TCF3, TCF7L1, MAP2K2
MAPK1/MAPK3 signaling232.8×0.021AREG, MAP2K2
ESR-mediated signaling232.1×0.021RUNX1, AREG
Formation of the beta-catenin:TCF transactivating complex230.1×0.021TCF7L1, KMT2B
RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function230.1×0.021RUNX1, KMT2B
RUNX3 regulates RUNX1-mediated transcription1475.8×0.022RUNX1
Signaling by Overexpressed Wild-Type EGFR in Cancer1356.9×0.023AREG
Signaling by MAP2K mutants1356.9×0.023MAP2K2
MAPK family signaling cascades225.7×0.023AREG, MAP2K2
Signaling by Nuclear Receptors225.5×0.023RUNX1, AREG
RUNX1 regulates transcription of genes involved in differentiation of HSCs223.8×0.023RUNX1, TCF3
RUNX1 regulates expression of components of tight junctions1285.5×0.023RUNX1
RUNX1 regulates transcription of genes involved in interleukin signaling1285.5×0.023RUNX1
RUNX2 regulates genes involved in differentiation of myeloid cells1285.5×0.023RUNX1
Negative feedback regulation of MAPK pathway1237.9×0.023MAP2K2
RUNX1 regulates estrogen receptor mediated transcription1237.9×0.023RUNX1
RUNX1 regulates transcription of genes involved in BCR signaling1237.9×0.023RUNX1
RUNX1 regulates transcription of genes involved in WNT signaling1237.9×0.023RUNX1
Chromatin organization220.4×0.023KMT2B, ARID2
Prolonged ERK activation events1178.4×0.026MAP2K2
RUNX1 regulates transcription of genes involved in differentiation of myeloid cells1178.4×0.026RUNX1

GO biological processes by enrichment

Over-representation of cohort genes vs the genome-wide background (hypergeometric test, Benjamini-Hochberg FDR; fold = observed/expected over 9 annotated cohort genes). Counts and members are kept as ground-truth; sorted by enrichment.

GO termCohort genesFoldFDRSample cohort genes
positive regulation of DNA-templated transcription515.5×9e-04RUNX1, TCF3, KMT2B, AR, MAP2K2
mammary gland alveolus development2220.3×0.002AR, AREG
insulin-like growth factor receptor signaling pathway2110.1×0.007AR, MAP2K2
dendritic cell antigen processing and presentation11872.4×0.008MPEG1
antigen processing and presentation of exogenous peptide antigen11872.4×0.008MPEG1
male somatic sex determination11872.4×0.008AR
prostate induction11872.4×0.008AR
regulation of connective tissue replacement11872.4×0.008RUNX1
regulation of G1/S transition of mitotic cell cycle268.1×0.008TCF3, ARID2
positive regulation of cell differentiation259.4×0.008ARID2, AR
regulation of developmental growth1936.2×0.012AR
lateral sprouting involved in mammary gland duct morphogenesis1936.2×0.012AR
myeloid leukocyte differentiation1624.1×0.012RUNX1
regulation of plasminogen activation1624.1×0.012RUNX1
positive regulation of integrin biosynthetic process1624.1×0.012AR
dichotomous subdivision of terminal units involved in mammary gland duct morphogenesis1624.1×0.012AREG
tertiary branching involved in mammary gland duct morphogenesis1624.1×0.012AR
positive regulation of epithelial cell proliferation involved in prostate gland development1624.1×0.012AR
negative regulation of CD4-positive, alpha-beta T cell differentiation1468.1×0.012RUNX1
morphogenesis of an epithelial fold1468.1×0.012AR
cardiac muscle tissue regeneration1468.1×0.012RUNX1
regulation of Golgi inheritance1468.1×0.012MAP2K2
positive regulation of extracellular matrix organization1468.1×0.012RUNX1
B cell lineage commitment1374.5×0.012TCF3
peptidyl-serine autophosphorylation1374.5×0.012MAP2K2
positive regulation of CD8-positive, alpha-beta T cell differentiation1374.5×0.012RUNX1
animal organ formation1374.5×0.012AR
male genitalia morphogenesis1374.5×0.012AR
regulation of cardiac muscle cell proliferation1374.5×0.012RUNX1
epithelial cell proliferation involved in lung morphogenesis1374.5×0.012MAP2K2

Therapeutics

Drug target analysis

Approved (phase 4): 3 · Phase ≥3: 3 · Phased (≥1): 3 · Undrugged: 6

Druggability breadth: 7 of 9 evidence-associated genes (78%) have a ChEMBL target (buckets above are over the deeply-mined display cohort).

Genes with an approved drug

The molecule shown is one approved compound that hits the gene — not necessarily a drug of choice or one indicated for this disease.

SymbolExample approved molecule
RUNX1APOMORPHINE HYDROCHLORIDE
ARPROGESTERONE
MAP2K2VEMURAFENIB

Top cohort targets by molecule count

SymbolMoleculesMax phase
AR1164
MAP2K2524
RUNX124
TCF300
TCF7L100
KMT2B00
ARID200
MPEG100
AREG00

Drugs targeting cohort genes (top 30)

MoleculeMax phaseTargets in cohort
APOMORPHINE HYDROCHLORIDE4RUNX1
PROGESTERONE4AR
ENZALUTAMIDE4AR
HYDROCORTISONE ACETATE4AR
EPLERENONE4AR
CHLORMADINONE ACETATE4AR
ARIPIPRAZOLE4AR
MOMETASONE FUROATE4AR
TESTOSTERONE PROPIONATE4AR
ESTRADIOL ACETATE4AR
OXANDROLONE4AR
BECLOMETHASONE DIPROPIONATE4AR
DIFLORASONE DIACETATE4AR
ETHYNODIOL DIACETATE4AR
HALCINONIDE4AR
DYDROGESTERONE4AR
FLUMETHASONE PIVALATE4AR
HALOBETASOL PROPIONATE4AR
ESTRADIOL CYPIONATE4AR
CLOCORTOLONE PIVALATE4AR
FLURANDRENOLIDE4AR
MEGESTROL ACETATE4AR
NORETHINDRONE ACETATE4AR
SERTACONAZOLE4AR
PYRVINIUM4AR
PRASUGREL4AR
OXICONAZOLE4AR
NILUTAMIDE4AR
MIFEPRISTONE4AR
PREDNISOLONE4AR

Bioactivity and enzyme data

Enzyme cohort genes (≥1 EC): 1.

Cohort genes with ChEMBL bioactivity (full, sorted by assay count)

SymbolAssaysType breakdown
AR2,100Binding:1727, Functional:339, ADMET:33, Unclassified:1
MAP2K2615Binding:581, Functional:33, ADMET:1
RUNX120Binding:17, Functional:3
KMT2B15Binding:15
ARID27Binding:7
MPEG13Binding:3
AREG1Functional:1

Cohort enzymes (BRENDA EC)

SymbolEC numbersNames
MAP2K22.7.12.2mitogen-activated protein kinase kinase

Cohort genes with high screening signal

≥100 ChEMBL assays — a studied-ness signal; see Therapeutics for approved-drug status.

SymbolChEMBL assays
AR2,100
MAP2K2615

Pharmacogenomics

Cohort genes with a PharmGKB record: 9; with CPIC/DPWG dosing guidelines: 0.

No cohort gene has a CPIC/DPWG genotype-guided dosing guideline (PharmGKB).

Chemical tractability of cohort targets

30 approved/phased compounds have measured bioactivity against a cohort gene (and aren’t yet in disease-level trials). This is a research / tractability signal, NOT a therapeutic recommendation — a bioactivity row often reflects off-target or screening binding (e.g. promiscuous kinase inhibitors against a cohort kinase), implying no disease mechanism.

CompoundMax phaseCohort target (bioactivity)
APOMORPHINE HYDROCHLORIDE4RUNX1
PROGESTERONE4AR
ENZALUTAMIDE4AR
HYDROCORTISONE ACETATE4AR
EPLERENONE4AR
CHLORMADINONE ACETATE4AR
ARIPIPRAZOLE4AR
MOMETASONE FUROATE4AR
TESTOSTERONE PROPIONATE4AR
ESTRADIOL ACETATE4AR
OXANDROLONE4AR
BECLOMETHASONE DIPROPIONATE4AR
DIFLORASONE DIACETATE4AR
ETHYNODIOL DIACETATE4AR
HALCINONIDE4AR
DYDROGESTERONE4AR
FLUMETHASONE PIVALATE4AR
HALOBETASOL PROPIONATE4AR
ESTRADIOL CYPIONATE4AR
CLOCORTOLONE PIVALATE4AR
FLURANDRENOLIDE4AR
MEGESTROL ACETATE4AR
NORETHINDRONE ACETATE4AR
SERTACONAZOLE4AR
PYRVINIUM4AR
PRASUGREL4AR
OXICONAZOLE4AR
NILUTAMIDE4AR
MIFEPRISTONE4AR
PREDNISOLONE4AR

Druggability pyramid

Cohort genes binned by druggability tier (high → low):

TierDefinitionGenesSymbols
AApproved (phase 4 drug)3RUNX1, AR, MAP2K2
BPhased (≥1) drug, not yet approved0
CDruggable family + PDB, no drug1MPEG1
DDruggable family + AlphaFold only, no drug0
EDifficult family or no structure, no drug5TCF3, TCF7L1, KMT2B, ARID2, AREG

Undrugged target profiles

6 cohort genes are undrugged. Ranked by ‘starting-point quality’ (assay depth + drugged-partner adjacency).

SymbolChEMBL assaysDrugged partners (top 3)
TCF30
TCF7L10
KMT2B15
ARID27
MPEG13
AREG1

Clinical trials & evidence

Clinical trials

Clinical trials: 0.