Molecular Imaging of Retinoic Acids in Live Cells Using Single-Chain Bioluminescence Probes

Sung Bae Kim, Rika Fujii, Ryo Nishihara, Rajendran J.C. Bose, Daniel Citterio, Koji Suzuki, Tarik F. Massoud, Ramasamy Paulmurugan

Research output: Contribution to journalArticle

Abstract

Retinoic acid (RA) is a key metabolite necessary for embryonic development and differentiation in vertebrates. We demonstrate the utility of genetically encoded, ligand-Activatable single-chain bioluminescence probes for detecting RAs from different biological sources. We examined 13 different molecular designs to identify an efficient single-chain probe that can quantify RA with significant sensitivity. The optimal probe consisted of four components: The N-and C-Terminal fragments of artificial luciferase variant-16 (ALuc16), the ligand binding domain of retinoic acid receptor α (RARα LBD), and an LXXLL interaction motif. This probe showed a 5.2-fold greater bioluminescence intensity in response to RA when compared to the vehicle control in live mammalian cells. The probe was highly selective to all-Trans-RA (at-RA), and highly sensitive in determining at-RA levels in cells derived from tumor xenografts created using MDA-MB-231 cells engineered to stably express the probe. We also detected RA levels in serum and cerebrospinal fluid. Using this probe, the detection limit for at-RA was â10 -9.5 M, with a linear range of two orders. We present a highly useful technique to quantitatively image endogenous at-RA levels in live mammalian cells expressing novel single-chain bioluminescence probes.

Original languageEnglish
JournalACS Combinatorial Science
DOIs
Publication statusPublished - 2019 Jan 1

Fingerprint

Bioluminescence
Molecular imaging
Tretinoin
Cells
Ligands
Cerebrospinal fluid
Retinoic Acid Receptors
Metabolites
Luciferases
Heterografts
Tumors

Keywords

  • artificial luciferase
  • bioluminescence
  • protein-protein interactions
  • retinoic acid receptor
  • retinoic acids
  • single-chain probe

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Molecular Imaging of Retinoic Acids in Live Cells Using Single-Chain Bioluminescence Probes. / Kim, Sung Bae; Fujii, Rika; Nishihara, Ryo; Bose, Rajendran J.C.; Citterio, Daniel; Suzuki, Koji; Massoud, Tarik F.; Paulmurugan, Ramasamy.

In: ACS Combinatorial Science, 01.01.2019.

Research output: Contribution to journalArticle

Kim, Sung Bae ; Fujii, Rika ; Nishihara, Ryo ; Bose, Rajendran J.C. ; Citterio, Daniel ; Suzuki, Koji ; Massoud, Tarik F. ; Paulmurugan, Ramasamy. / Molecular Imaging of Retinoic Acids in Live Cells Using Single-Chain Bioluminescence Probes. In: ACS Combinatorial Science. 2019.
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