[125I]Iodo-ASEM, a specific in vivo radioligand for α7-nAChR

Yongjun Gao, Ronnie C. Mease, Thao T. Olson, Kenneth J. Kellar, Robert F. Dannals, Martin G. Pomper, Andrew G. Horti

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


[125I]Iodo-ASEM, a new radioligand with high affinity and selectivity for α7-nAChRs (Ki=0.5nM; α7/α4β2=3414), has been synthesized in radiochemical yield of 33±6% from the corresponding di-butyltriazene derivative and at high specific radioactivity (1600Ci/mmol; 59.2MBq/μmol). [125I]Iodo-ASEM readily entered the brains of normal CD-1 mice and specifically and selectively labeled cerebral α7-nAChRs. [125I]iodo-ASEM is a new useful tool for studying α7-nAChR.

Original languageEnglish (US)
Pages (from-to)488-493
Number of pages6
JournalNuclear Medicine and Biology
Issue number5
StatePublished - May 1 2015


  • Iodo-ASEM
  • Nicotinic acetylcholine receptor
  • α7-nAChR

ASJC Scopus subject areas

  • Molecular Medicine
  • Radiology Nuclear Medicine and imaging
  • Cancer Research


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