- 同
- Leucine-5, SRBC receptor, LFA-2
- 関
- CD
発現細胞
分子量
機能
- リンパ球が抗原提示細胞と相互作用するのに重要 (IMM.343)
別名
ファミリー
WordNet
- the 3rd letter of the Roman alphabet (同)c
- (music) the keynote of the scale of C major
- a general-purpose programing language closely associated with the UNIX operating system
PrepTutorEJDIC
- carbonの化学記号
- certificate of deposit / (また『C.D.』)Civil Defense民間防衛
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2015/10/27 11:06:37」(JST)
[Wiki en表示]
CD2 molecule |
The protein structure of CD2. From PDB: 1hnf
|
Available structures |
PDB |
Ortholog search: PDBe, RCSB |
List of PDB id codes |
1CDB, 1GYA, 1HNF, 1L2Z, 1QA9, 2J6O, 2J7I
|
|
|
Identifiers |
Symbols |
CD2 ; LFA-2; SRBC; T11 |
External IDs |
OMIM: 186990 MGI: 88320 HomoloGene: 1338 ChEMBL: 2040 GeneCards: CD2 Gene |
Gene ontology |
Molecular function |
• receptor activity
• receptor binding
• protein binding
• protein homodimerization activity
|
Cellular component |
• extracellular region
• plasma membrane
• integral component of plasma membrane
• cell-cell junction
• external side of plasma membrane
• cytoplasmic side of plasma membrane
• cell surface
• anchored component of plasma membrane
|
Biological process |
• membrane raft polarization
• apoptotic process
• cell surface receptor signaling pathway
• blood coagulation
• single organismal cell-cell adhesion
• natural killer cell activation
• positive regulation of myeloid dendritic cell activation
• positive regulation of tumor necrosis factor production
• heterotypic cell-cell adhesion
• T cell activation
• regulation of T cell differentiation
• leukocyte migration
• positive regulation of interferon-gamma secretion
• positive regulation of interleukin-8 secretion
|
Sources: Amigo / QuickGO |
|
RNA expression pattern |
|
More reference expression data |
Orthologs |
Species |
Human |
Mouse |
Entrez |
914 |
12481 |
Ensembl |
ENSG00000116824 |
ENSMUSG00000027863 |
UniProt |
P06729 |
P08920 |
RefSeq (mRNA) |
NM_001767 |
NM_013486 |
RefSeq (protein) |
NP_001758 |
NP_038514 |
Location (UCSC) |
Chr 1:
116.75 – 116.77 Mb |
Chr 3:
101.28 – 101.29 Mb |
PubMed search |
[1] |
[2] |
|
CD2 (cluster of differentiation 2) is a cell adhesion molecule found on the surface of T cells and natural killer (NK) cells. It has also been called T-cell surface antigen T11/Leu-5, LFA-2,[1] LFA-3 receptor, erythrocyte receptor and rosette receptor.[2]
Contents
- 1 Function
- 2 Classification
- 3 Interactions
- 4 References
- 5 Further reading
- 6 External links
Function
It interacts with other adhesion molecules, such as lymphocyte function-associated antigen-3 (LFA-3/CD58) in humans, or CD48 in rodents, which are expressed on the surfaces of other cells.[3]
In addition to its adhesive properties, CD2 also acts as a co-stimulatory molecule on T and NK cells.[4]
Diagnostic relevance
CD2 is a specific marker for T cells and NK cells, and can therefore be used in immunohistochemistry to identify the presence of such cells in tissue sections. The great majority of T cell lymphomas and leukaemias also express CD2, making it possible to use the presence of the antigen to distinguish these conditions from B cell neoplasms.[5]
Classification
Due to its structural characteristics, CD2 is a member of the immunoglobulin superfamily; it possesses two immunoglobulin-like domains in its extracellular portion.[4]
Interactions
CD2 has been shown to interact with CD2BP2,[6] Lck[7] and PSTPIP1.[8]
References
- ^ Sanchez-Madrid F, Krensky AM, Ware CF, Robbins E, Strominger JL, Burakoff SJ, Springer TA (1982). "Three distinct antigens associated with human T-lymphocyte-mediated cytolysis: LFA-1, LFA-2, and LFA-3". Proc Natl Acad Sci U S A 79 (23): 7489–93. doi:10.1073/pnas.79.23.7489. PMC 347365. PMID 6984191.
- ^ Uniprot database entry for CD2 (accession number P06729)
- ^ Wilkins AL, Yang W, Yang JJ (2003). "Structural biology of the cell adhesion protein CD2: from molecular recognition to protein folding and design". Curr Protein Pept Sci 4 (5): 367–73. doi:10.2174/1389203033487063. PMID 14529530.
- ^ a b Yang JJ, Ye Y, Carroll A, Yang W, Lee HW (2001). "Structural biology of the cell adhesion protein CD2: alternatively folded states and structure-function relation". Curr Protein Pept Sci 2 (1): 1–17. doi:10.2174/1389203013381251. PMID 12369898.
- ^ Leong, Anthony S-Y; Cooper, Kumarason; Leong, F Joel W-M (2003). Manual of Diagnostic Cytology (2 ed.). Greenwich Medical Media, Ltd. p. 61. ISBN 1-84110-100-1.
- ^ Nishizawa K, Freund C, Li J, Wagner G, Reinherz EL (December 1998). "Identification of a proline-binding motif regulating CD2-triggered T lymphocyte activation". Proc. Natl. Acad. Sci. U.S.A. 95 (25): 14897–902. doi:10.1073/pnas.95.25.14897. PMC 24547. PMID 9843987.
- ^ Bell GM, Fargnoli J, Bolen JB, Kish L, Imboden JB (January 1996). "The SH3 domain of p56lck binds to proline-rich sequences in the cytoplasmic domain of CD2". J. Exp. Med. 183 (1): 169–78. doi:10.1084/jem.183.1.169. PMC 2192399. PMID 8551220.
- ^ Li J, Nishizawa K, An W, Hussey RE, Lialios FE, Salgia R, Sunder-Plassmann R, Reinherz EL (December 1998). "A cdc15-like adaptor protein (CD2BP1) interacts with the CD2 cytoplasmic domain and regulates CD2-triggered adhesion". EMBO J. 17 (24): 7320–36. doi:10.1093/emboj/17.24.7320. PMC 1171078. PMID 9857189.
Further reading
- Sayre PH, Reinherz EL (1989). "Structure and function of the erythrocyte receptor CD2 on human T lymphocytes: a review.". Scand. J. Rheumatol. Suppl. 76: 131–44. PMID 2471997.
- Rouleau M, Mollereau B, Bernard A, Metivier D, Rosenthal-Allieri MA, Charpentier B, Senik A (1997). "CD2 induced apoptosis of peripheral T cells.". Transplant. Proc. 29 (5): 2377–8. doi:10.1016/S0041-1345(97)00410-7. PMID 9270771.
- Lüscher B (2001). "Function and regulation of the transcription factors of the Myc/Max/Mad network.". Gene 277 (1-2): 1–14. doi:10.1016/S0378-1119(01)00697-7. PMID 11602341.
- Yang JJ, Ye Y, Carroll A, Yang W, Lee HW (2002). "Structural biology of the cell adhesion protein CD2: alternatively folded states and structure-function relation.". Curr. Protein Pept. Sci. 2 (1): 1–17. doi:10.2174/1389203013381251. PMID 12369898.
- Bell GM, Seaman WE, Niemi EC, Imboden JB (1992). "The OX-44 molecule couples to signaling pathways and is associated with CD2 on rat T lymphocytes and a natural killer cell line.". J. Exp. Med. 175 (2): 527–36. doi:10.1084/jem.175.2.527. PMC 2119111. PMID 1346273.
- Marie-Cardine A, Maridonneau-Parini I, Ferrer M, Danielian S, Rothhut B, Fagard R, Dautry-Varsat A, Fischer S (1992). "The lymphocyte-specific tyrosine protein kinase p56lck is endocytosed in Jurkat cells stimulated via CD2.". J. Immunol. 148 (12): 3879–84. PMID 1351089.
- Hahn WC, Menu E, Bothwell AL, Sims PJ, Bierer BE (1992). "Overlapping but nonidentical binding sites on CD2 for CD58 and a second ligand CD59.". Science 256 (5065): 1805–7. doi:10.1126/science.1377404. PMID 1377404.
- Luzzati AL, Giacomini E, Giordani L, Pugliese O, Viora M, Chersi A (1992). "The antigen-specific induction of normal human lymphocytes in vitro is down-regulated by a conserved HIV p24 epitope.". Immunol. Lett. 33 (3): 307–14. doi:10.1016/0165-2478(92)90078-3. PMID 1385321.
- Ruegg CL, Strand M (1991). "A synthetic peptide with sequence identity to the transmembrane protein GP41 of HIV-1 inhibits distinct lymphocyte activation pathways dependent on protein kinase C and intracellular calcium influx.". Cell. Immunol. 137 (1): 1–13. doi:10.1016/0008-8749(91)90051-C. PMID 1832084.
- Schraven B, Samstag Y, Altevogt P, Meuer SC (1990). "Association of CD2 and CD45 on human T lymphocytes.". Nature 345 (6270): 71–4. doi:10.1038/345071a0. PMID 1970422.
- Samelson LE, Fletcher MC, Ledbetter JA, June CH (1990). "Activation of tyrosine phosphorylation in human T cells via the CD2 pathway. Regulation by the CD45 tyrosine phosphatase.". J. Immunol. 145 (8): 2448–54. PMID 1976695.
- Luzzati AL, Pugliese O, Giacomini E, Giordani L, Quintieri F, Hraba T, Mach O, Krchnák V, Vágner J (1990). "Immunoregulatory effect of a synthetic peptide corresponding to a region of protein p24 of HIV.". Folia Biol. (Praha) 36 (1): 71–7. PMID 2111780.
- Seed B, Aruffo A (1987). "Molecular cloning of the CD2 antigen, the T-cell erythrocyte receptor, by a rapid immunoselection procedure.". Proc. Natl. Acad. Sci. U.S.A. 84 (10): 3365–9. doi:10.1073/pnas.84.10.3365. PMC 304871. PMID 2437578.
- Peterson A, Seed B (1987). "Monoclonal antibody and ligand binding sites of the T cell erythrocyte receptor (CD2).". Nature 329 (6142): 842–6. doi:10.1038/329842a0. PMID 2444890.
- Sayre PH, Chang HC, Hussey RE, Brown NR, Richardson NE, Spagnoli G, Clayton LK, Reinherz EL (1987). "Molecular cloning and expression of T11 cDNAs reveal a receptor-like structure on human T lymphocytes.". Proc. Natl. Acad. Sci. U.S.A. 84 (9): 2941–5. doi:10.1073/pnas.84.9.2941. PMC 304776. PMID 2883656.
- Diamond DJ, Clayton LK, Sayre PH, Reinherz EL (1988). "Exon-intron organization and sequence comparison of human and murine T11 (CD2) genes.". Proc. Natl. Acad. Sci. U.S.A. 85 (5): 1615–9. doi:10.1073/pnas.85.5.1615. PMC 279824. PMID 2894031.
- Lang G, Wotton D, Owen MJ, Sewell WA, Brown MH, Mason DY, Crumpton MJ, Kioussis D (1988). "The structure of the human CD2 gene and its expression in transgenic mice.". EMBO J. 7 (6): 1675–82. PMC 457152. PMID 2901953.
- Leca G, Boumsell L, Fabbi M, Reinherz EL, Kanellopoulos JM (1986). "The sheep erythrocyte receptor and both alpha and beta chains of the human T-lymphocyte antigen receptor bind the mitogenic lectin (phytohaemagglutinin) from Phaseolus vulgaris.". Scand. J. Immunol. 23 (5): 535–44. doi:10.1111/j.1365-3083.1986.tb01985.x. PMID 3085210.
- Sewell WA, Brown MH, Dunne J, Owen MJ, Crumpton MJ (1986). "Molecular cloning of the human T-lymphocyte surface CD2 (T11) antigen.". Proc. Natl. Acad. Sci. U.S.A. 83 (22): 8718–22. doi:10.1073/pnas.83.22.8718. PMC 387002. PMID 3490670.
PDB gallery
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1cdb: STRUCTURE OF THE GLYCOSYLATED ADHESION DOMAIN OF HUMAN T LYMPHOCYTE GLYCOPROTEIN CD2
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1gya: N-GLYCAN AND POLYPEPTIDE NMR SOLUTION STRUCTURES OF THE ADHESION DOMAIN OF HUMAN CD2
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1hnf: CRYSTAL STRUCTURE OF THE EXTRACELLULAR REGION OF THE HUMAN CELL ADHESION MOLECULE CD2 AT 2.5 ANGSTROMS RESOLUTION
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1qa9: Structure of a Heterophilic Adhesion Complex Between the Human CD2 and CD58(LFA-3) Counter-Receptors
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External links
- CD2 Antigen at the US National Library of Medicine Medical Subject Headings (MeSH)
- Mouse CD Antigen Chart
- Human CD Antigen Chart
Cluster of differentiation by lineage
|
|
Lymphoid |
B cell |
- Pre-B cell: CD10/CALLA
- CD79A
- mature: CD19
- CD20
- CD21/CR2
- CD23/FcεRII
- CD127
- CD40
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|
T/NK |
T cell |
- CD1
- CD4
- CD8
- CD13
- CD18
- CD26
- CD27
- CD28
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NK cell |
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All |
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All |
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Myeloid |
CFU-GM/
Myelomonocyte |
- CD11c
- CD14
- CD15
- CD31
- CD64
- CD68
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MEP |
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All (pan-myeloid) |
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Stem cell |
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Index of cells from bone marrow
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Description |
- Immune system
- Cells
- Physiology
- coagulation
- proteins
- granule contents
- colony-stimulating
- heme and porphyrin
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|
Disease |
- Red blood cell
- Monocyte and granulocyte
- Neoplasms and cancer
- Histiocytosis
- Symptoms and signs
- Blood tests
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Treatment |
- Transfusion
- Drugs
- thrombosis
- bleeding
- other
|
Index of the immune system
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|
Description |
- Physiology
- cells
- autoantigens
- autoantibodies
- complement
- surface antigens
- IG receptors
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Disease |
- Allergies
- Immunodeficiency
- Immunoproliferative immunoglobulin disorders
- Hypersensitivity and autoimmune disorders
- Neoplasms and cancer
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Treatment |
- Procedures
- Drugs
- antihistamines
- immunostimulants
- immunosuppressants
- monoclonal antibodies
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UpToDate Contents
全文を閲覧するには購読必要です。 To read the full text you will need to subscribe.
English Journal
- Thiocyanate mediated structural diversity in phenol based "end-off" compartmental ligand complexes of group 12 metal ions: Studies on their photophysical properties and phosphatase like activity.
- Adhikary J1, Chakraborty P2, Samanta S3, Zangrando E4, Ghosh S5, Das D6.
- Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.Spectrochim Acta A Mol Biomol Spectrosc.2017 May 5;178:114-124. doi: 10.1016/j.saa.2017.01.041. Epub 2017 Jan 25.
- PMID 28171815
- Cd2+ and Pb2+ complexation by glutathione and the phytochelatins.
- Jacquart A1, Brayner R1, El Hage Chahine JM1, Ha-Duong NT2.
- Chemico-biological interactions.Chem Biol Interact.2017 Apr 1;267:2-10. doi: 10.1016/j.cbi.2016.09.002. Epub 2016 Sep 6.
- PMID 27613484
- Layer-by-layer encapsulated nano-emulsion of ionic liquid loaded with functional material for extraction of Cd2+ ions from aqueous solutions.
- Elizarova IS1, Luckham PF2.
- Journal of colloid and interface science.J Colloid Interface Sci.2017 Apr 1;491:286-293. doi: 10.1016/j.jcis.2016.12.054. Epub 2016 Dec 24.
- PMID 28049053
Japanese Journal
- 金属イオン添加によるCu-In-S系ナノ粒子の光学特性
- Watanabe Kosuke,Uehara Masato,Nakamura Hiroyuki,Miyazaki Masaya,Maeda Hideaki
- Engineering sciences reports, Kyushu University 35(2), 1-6, 2013-12
- … Furthermore, we added some metal ions (Zn2+, Cd2+ or Ag+) by the post heat-treatment in the organic coordinating solvent in order to tune the PL wavelength of NCs. … In particular, the materials treated with Zn2+ or Cd2+ achieved respective QY of 25% and 40%. …
- NAID 120005372136
- Close Relations between Podocyte Injuries and Membranous Proliferative Glomerulonephritis in Autoimmune Murine Models
- Kimura Junpei,Ichii Osamu,Otsuka Saori,Sasaki Hayato,Hashimoto Yoshiharu,Kon Yasuhiro
- American Journal Of Nephrology 38(1), 27-38, 2013-07
- … Furthermore, both MPGN models showed a decrease in immune-positive areas of nephrin, podocin and synaptopodin in the glomerulus, and in the mRNA expression of Nphs1, Nphs2, Synpo, Actn4, Cd2ap, and Podxl in the isolated glomerulus. … Significant negative correlations were detected between serum anti-dsDNA antibody levels and glomerular Nphs1 expression, and between urinary albumin-to-creatinine ratio and glomerular expression of Nphs1, Synpo, Actn4, Cd2ap, or Podxl. …
- NAID 120005322430
- パイロクロア酸化物Cd₂Os₂O₇における全入全出型スピン配列と金属絶縁体転移 (特集 4d/5d電子系酸化物の特異な物性)
- 広井 善二,山浦 淳一,播磨 尚朝
- Ceramics Japan = セラミックス : bulletin of the Ceramic Society of Japan 48(6), 453-458, 2013-06
- NAID 40019653388
Related Pictures
★リンクテーブル★
[★]
- 英
- adhesion molecule
- 同
- 接着因子
- 関
接着分子のファミリー
白血球の相互作用に関与している接着分子 (IMM.87)
白血球の相互作用に関与している免疫グロブリンスーパーファミリーの接着分子 (IMM.329)
-接着分子
-細胞接着分子
-カドヘリン
[★]
- 英
- malignant lymphoma
- ラ
- lymphoma malignum
- 関
悪性リンパ腫とマーカー
- 悪性リンパ腫.xls
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sIg
|
CD5
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CD10
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CD19
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CD20
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CD23
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CD43
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bcl
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cyclin
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TdT
|
その他
|
転座
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小リンパ性リンパ腫 small lymphocytic lymphoma 慢性リンパ性白血病 chronic lymphocytic leukemia
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+
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+
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+
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+
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+
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-
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-
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-
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濾胞性リンパ腫 FL
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+
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-
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+
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+
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bcl2 +
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-
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MALTリンパ腫
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-
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-
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+
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マントル細胞リンパ腫 MCL
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+
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+
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-
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+
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+
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びまん性大細胞性B細胞リンパ腫 DLBL
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+
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-
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+/-
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+
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+
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bcl6 +
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前駆Bリンパ芽球性リンパ腫 急性Bリンパ球性白血病 LBL/ALL
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-
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+
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+
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バーキットリンパ腫 BL
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+
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-
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+
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+
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+
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Myc, Ki-67
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t(8,14)Myc;IgH ~80% t(2,8)κ;Myc ~15%
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ホジキンリンパ腫
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CD15, CD30, CD45 -
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t(8,22)Myc;λ ~10%
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成人T細胞白血病 ATL
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CD2, CD3, CD4, CD25, HLA-DR, CD8 -
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病期
参考
- http://www.rinpashu.com/inspection/
国試
[★]
- 英
- adult T cell leukemia, adult T-cell leukemia ATL
- 同
- 成人T細胞白血病リンパ腫 adult T-cell leukemia/lymphoma ATLL
- 関
- ヒトTリンパ球向性ウイルス
特徴
- CD4陽性Tリンパ球に感染して白血病/リンパ腫を起こす → 成熟したT細胞に感染し、それが腫瘍性に増殖
- (CD2+, CD3+, CD4+, CD25+, HLA-DR+, CD8-)
病型
|
急性型
|
リンパ腫型
|
慢性型
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くすぶり型
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典型的な症状
|
腫瘍随伴症状(腫瘍熱、高カルシウム血症(意識障害・脱水・腎機能障害) (50%で認められる))が初発症状であることが多い。 臓器浸潤による症状(消化管浸潤(下痢・腹痛)、肝臓浸潤(黄疸)、 肺浸潤(呼吸困難)、中枢神経浸潤(脳神経症状))
|
リンパ節腫大は全例で認められる。 腫瘍熱、高カルシウム血症を初発症状とする場合もある。 末梢血中の形態的異常細胞は1%以下
|
多くの場合、自覚症状を欠き、健康診断などで偶然診断される。 日和見感染症や腫瘍の浸潤に伴う皮膚症状(皮疹、皮膚腫瘤)、 肺病変(労作時息切れ、咳嗽)が診断の発端となる場合もある。
|
リンパ球増多を伴わないため、血液検査では診断に至らない。 無症候キャリアーと同様、多くの患者では症状を欠く。
|
PS>1
|
67.6%
|
45.4%
|
27.2%
|
22.7%
|
感染性併発症
|
26.9%
|
10.9%
|
35.5%
|
35.6%
|
皮膚病変
|
40.2%
|
25%
|
46.1%
|
48.9%
|
肺病変
|
20.2%
|
10.9%
|
15.1%
|
15.6%
|
肝腫大
|
35.9%
|
16%
|
13.8%
|
0%
|
脾腫大
|
29.9%
|
15.4%
|
11.2%
|
0%
|
4個以上の腫大リンパ節
|
80.7%
|
62.2%
|
54%
|
6.7%
|
高カルシウム血症
|
50.3%
|
16.7%
|
0%
|
0%
|
貧血(Hb<10g/dl)
|
10.1%
|
4.5%
|
4%
|
0%
|
血小板減少(10万/ul)
|
19.4%
|
4.5%
|
2%
|
6.7%
|
疫学
- 日本に約120万人の感染者
- 男性に多い。
- 1000-2000人に1。50歳以上で発症(平均58歳)。
病原体
潜伏期間
感染経路
- 母乳感染 ← 哺乳の停止・人工乳による感染防止
- 輸血
- 性交
病理
- 参考1
- 末梢血、骨髄:花弁状、脳回転状に分葉した異型細胞 → ATL細胞:CD4陽性、CD8陰性
- [show details]
- リンパ節
- その他:(皮膚)皮膚T細胞リンパ腫のように表皮向性をもち、ポートリエ微小膿瘍を伴って皮膚に浸潤することがある。このばあい、緩徐進行型の経過をたどる
- 免疫表現型
- 遺伝子:決まった核型異常や遺伝子異常はない。
病態
- ATL細胞はPTHrP、IL-1α、TNF-βを産生 → 高カルシウム血症、全身症状?(発熱、全身倦怠感など)
- 正常T細胞の減少 → 易感染性
症状
- 初発症状は皮膚症状、リンパ節腫脹、肝脾腫、高カルシウム血症など。貧血や出血症状の頻度は少ない。
- 皮膚症状 → PMID: 24438140 [1]
- リンパ節腫脹
- 肝脾腫
- 高カルシウム血症:ATL細胞の産生する副甲状腺ホルモン関連蛋白質(PTHrP)により破骨細胞の活性化が起こるため。
検査
合併症
- HTLV-1 associated myelopath(HAM) = tropical spastic paraparesis(TSP) →まとめて「HAM/TSP」と呼ばれることがある。
検査
治療
予後
- 急性型とリンパ腫型は予後不良
- LDH、血清Ca濃度が予後と関連(PMID 16122659)
参考
- 1. [charged] Clinical manifestations, pathologic features, and diagnosis of adult T cell leukemia-lymphoma - uptodate [2]
国試
[★]
- 英
- T cell
- 同
- Tリンパ球、T lymphocyte
- 関
- TCR、B細胞、MHC
- 図:IMM.315(T細胞の成熟)
- 胸腺で成熟したT細胞は血流によって移動し、リンパ節の傍皮質、白脾髄のリンパ性動脈周囲鞘、パイエル板の傍濾胞域に集まる(人間の正常構造と機能 VIIA血管・免疫 p.28)
種類
- ヘルパーT細胞(Th細胞)
- キラーT細胞(Tc細胞)
- サプレッサーT細胞(Treg細胞)
T細胞の抗原認識 (SP.248)
CD4+ T細胞のサイトカイン放出とその原因
Th細胞活性化と接着分子
[★]
- 英
- acute promyelocytic leukemia, APL
- 同
- M3。急性前骨髄芽球性白血病?
- 関
- 急性骨髄性白血病 AML、白血病。前骨髄球
概念
- 急性骨髄性白血病の一病型
- 白血病細胞が前骨髄球の段階で成熟停止を起こした型
- FAB分類:M3
- アウエル小体が多く認められる。アウエル小体が集積した細胞(鳥の巣細胞、ファゴット細胞)がみられる。
- 免疫組織化学:MPO陽性(*ミエロペルオキシダーゼ活性はほぼ100%陽性)
- 異型前骨髄球がみられる。
- 染色体異常
- 95%以上の症例:t(15;17)(q22;q21)
- 全症例:PML遺伝子(chr.15)とRAR-α遺伝子(chr.17)の融合遺伝子の存在
M3と他のAMLを区別するポイント
検査
- 急性白血病に特徴的:高尿酸血症、LDH上昇
- 染色体異常:全例にt(15;17)を認め、PML遺伝子とRAR-α遺伝子が誘導したPML-RARA遺伝子を認める。
- [show details]
合併症
- Auer顆粒を豊富に含み、この中にはトロンボプラスチン類似物質を含む。この物質の逸脱により凝固が亢進しDICにつながる
- 線溶亢進型DICを引きおこし、臓器障害より出血症状が前面にてくる。フィブリノゲン減少、Dダイマー・FDP増加が見られる。
治療
国試
[★]
発現細胞
- メモリーB細胞はIgD陰性、CD27がマーカーとなる
分子量
機能
ファミリー
- 抗原提示細胞がnaive T細胞を活性化する際、MHC class II ⇔ TCR+CD4が第一のシグナルとして入力される。
- 第2のシグナルは幾つかあるが、APCがもつCD27がリガンド、naive T細胞のCD70が受容体となりco-stimulatorとして働くものがある (IMM.346)
[★]
- 英
- CD26 antigen
- 関
- ジペプチジルペプチダーゼIV
[★]
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