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Neuropilin

Izvor: Wikipedija

Neuropilin 1
Kristalografska struktura dimernog B1 domena ljudskog neuropilina 1.[1]
Identifikatori
Simbol NRP1
Entrez 8829
HUGO 8004
OMIM 602069
PDB 3I97
RefSeq NM_001024628
UniProt O14786
Drugi podaci
Lokus Hromozom 10 p12
Neuropilin 2
Identifikatori
Simbol NRP2
Entrez 8828
HUGO 8005
OMIM 602070
RefSeq NM_201279
UniProt O60462
Drugi podaci
Lokus Hromozom 2 q34

Neuropilin je proteinski receptor koji je aktivan u neuronima.

Postoje dve forme neuropilina, NRP-1 i NRP-2. Oni su transmembranski glikoproteini, i predominantni koreceptori jedne druge klase proteina poznate kao semaforini. Među semaforinima, NRP-1 i NRP-2 su specifično receptori za klasu-3 semaforina, koja je između ostalog odgovorna za aksonsko navođenje tokom razvoja nervnog sistem kod kičmenjaka.

Neuropilini deluju kao koreceptori jer imaju veoma mali citoplazmatični domen te zavise od drugih molekula da prenesu signale kroz membranu, normalno od pleksina. Neuropilini obično deluju kao dimeri. Različite kombinacije imaju različite afinitete. Na primer, NRP-1 homodimeri imaju visok afinitet za Sema-3A, dok NRP-2 homodimeri imaju visok afinitet za Sema-3F.

Još jedan ligand za neuropiline je VEGF, faktor rasta koji učestvuje u regulaciji angiogeneze.

Primena

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Neuropilin-1 je terapeutska meta u tretmanu leukemije i limfoma. Izražavanje neuropilina-1 je povećano kod obolelih od leukemije i osoba sa ćelijama limfoma.[2] Takođe je poznato da antagonizovanje neuropilina-1 inhibira tumorsku ćelijsku migraciju i adheziju.[3]

Reference

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  1. PDB 3I97; Jarvis A, Allerston CK, Jia H, Herzog B, Garza-Garcia A, Winfield N, Ellard K, Aqil R, Lynch R, Chapman C, Hartzoulakis B, Nally J, Stewart M, Cheng L, Menon M, Tickner M, Djordjevic S, Driscoll PC, Zachary I, Selwood DL (March 2010). „Small molecule inhibitors of the neuropilin-1 vascular endothelial growth factor A (VEGF-A) interaction”. J. Med. Chem. 53 (5): 2215–26. DOI:10.1021/jm901755g. PMC 2841442. PMID 20151671. 
  2. Karjalainen K, Jaalouk DE, Bueso-Ramos CE, Zurita AJ, Kuniyasu A, Eckhardt BL, Marini FC, Lichtiger B, O'Brien S, Kantarjian HM, Cortes JE, Koivunen E, Arap W, Pasqualini R (November 2010). „Targeting neuropilin-1 in human leukemia and lymphoma”. Blood 117 (3): 920–927. DOI:10.1182/blood-2010-05-282921. PMID 21063027. 
  3. Jia H, Cheng L, Tickner M, Bagherzadeh A, Selwood D, Zachary I (February 2010). „Neuropilin-1 antagonism in human carcinoma cells inhibits migration and enhances chemosensitivity”. Br. J. Cancer 102 (3): 541–52. DOI:10.1038/sj.bjc.6605539. PMC 2822953. PMID 20087344. 

Spoljašnje veze

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Neuropilin
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