ACBI3
Width300
Cas number2938169-76-5
Pubchem169449364
Chemspiderid129422922
Iupac name(2S,4R)-1-[(2S)-2-[4-[4-[(3S)-4-[4-[5-[(4S)-2-amino-3-cyano-4-methyl-6,7-dihydro-5H-1-benzothiophen-4-yl]-1,2,4-oxadiazol-3-yl]pyrimidin-2-yl]-3-methyl-1,4-diazepan-1-yl]butoxy]triazol-1-yl]-3-methylbutanoyl]-4-hydroxy-N-[(1R)-2-hydroxy-1-[4-(4-methyl-1,3-thiazol-5-yl)phenyl]ethyl]pyrrolidine-2-carboxamide
C50
H62
N14
O6
S2
SmilesC[C@H]1CN(CCCN1C2=NC=CC(=N2)C3=NOC(=N3)[C@]4(CCCC5=C4C(=C(S5)N)C#N)C)CCCCOC6=CN(N=N6)[C@@H](C(C)C)C(=O)N7C[C@@H](C[C@H]7C(=O)N[C@@H](CO)C8=CC=C(C=C8)C9=C(N=CS9)C)O
Stdinchi1S/C50H62N14O6S2/c1-29(2)42(47(68)63-25-34(66)22-38(63)46(67)55-37(27-65)32-11-13-33(14-12-32)43-31(4)54-28-71-43)64-26-40(58-60-64)69-21-7-6-18-61-19-9-20-62(30(3)24-61)49-53-17-15-36(56-49)45-57-48(70-59-45)50(5)16-8-10-39-41(50)35(23-51)44(52)72-39/h11-15,17,26,28-30,34,37-38,42,65-66H,6-10,16,18-22,24-25,27,52H2,1-5H3,(H,55,67)/t30-,34+,37-,38-,42-,50-/m0/s1
StdinchikeyDQRZNYPHOWVXPQ-YDUPODKQSA-N

ACBI3 is an experimental anticancer agent which is one of the first examples of a proteolysis targeting chimera (PROTAC) against the protein KRAS.

Being a PROTAC, it is a bifunctional molecule with two halves joined by a linker; one half binds to its target, KRAS which is a key driver in certain types of cancer, while the other half binds E3 ligase which triggers the cell's natural protein degradation mechanisms. This causes the KRAS protein to be degraded.

In early stage testing, it was able to target 13 of the 17 most common mutated forms of KRAS found in cancer cells, allowing selective targeting of a wide range of cancer types. While this particular molecule is still at an early developmental stage, it is an important proof of concept that KRAS can be targeted with a PROTAC.[1][2][3][4]

See also

References

  1. ^ Popow J, Farnaby W, Gollner A, Kofink C, Fischer G, Wurm M, Zollman D, Wijaya A, Mischerikow N, Hasenoehrl C, Prokofeva P, Arnhof H, Arce-Solano S, Bell S, Boeck G, Diers E, Frost AB, Goodwin-Tindall J, Karolyi-Oezguer J, Khan S, Klawatsch T, Koegl M, Kousek R, Kratochvil B, Kropatsch K, Lauber AA, McLennan R, Olt S, Peter D, Petermann O, Roessler V, Stolt-Bergner P, Strack P, Strauss E, Trainor N, Vetma V, Whitworth C, Zhong S, Quant J, Weinstabl H, Kuster B, Ettmayer P, Ciulli A (September 2024). "Targeting cancer with small-molecule pan-KRAS degraders". Science. 385 (6715): 1338–1347. Bibcode:2024Sci...385.1338P. doi:10.1126/science.adm8684. PMID 39298590
  2. ^ Hamilton G, Eggerstorfer MT, Stickler S (2024). "Development of PROTACS degrading KRAS and SOS1". Oncology Research. 32 (8): 1257–1264. doi:10.32604/or.2024.051653. PMC 11267056. PMID 39055890
  3. ^ Kumar H, Sobhia ME (August 2024). "Interplay of PROTAC Complex Dynamics for Undruggable Targets: Insights into Ternary Complex Behavior and Linker Design". ACS Medicinal Chemistry Letters. 15 (8): 1306–1318. doi:10.1021/acsmedchemlett.4c00189. PMC 11317996. PMID 39140051
  4. ^ Li Y, Yang L, Li X, Zhang X (August 2024). "Inhibition of GTPase KRASG12D: a review of patent literature". Expert Opinion on Therapeutic Patents. 34 (8): 701–721. doi:10.1080/13543776.2024.2369630. PMID 38884569