WO2013184641A1 - Fluorescent nitric oxide probes and associated methods - Google Patents

Fluorescent nitric oxide probes and associated methods Download PDF

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Publication number
WO2013184641A1
WO2013184641A1 PCT/US2013/044037 US2013044037W WO2013184641A1 WO 2013184641 A1 WO2013184641 A1 WO 2013184641A1 US 2013044037 W US2013044037 W US 2013044037W WO 2013184641 A1 WO2013184641 A1 WO 2013184641A1
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nitric oxide
probes
associated methods
fluorescent
present disclosure
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French (fr)
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Eric V. Anslyn
Youjun Yang
Michelle A. IVY
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University of Texas System
University of Texas at Austin
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University of Texas at Austin
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/84—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving inorganic compounds or pH
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/33—Heterocyclic compounds
    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
    • A61K31/44—Non condensed pyridines; Hydrogenated derivatives thereof
    • A61K31/455—Nicotinic acids, e.g. niacin; Derivatives thereof, e.g. esters, amides
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D215/00—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems
    • C07D215/02—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom
    • C07D215/12—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
    • G01N31/22—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T436/00—Chemistry: analytical and immunological testing
    • Y10T436/17—Nitrogen containing
    • Y10T436/177692—Oxides of nitrogen

Definitions

  • NO nitric oxide
  • EDPvF endothelial-derived relaxing factor
  • fluorescence techniques are the most desirable because of their sensitivity, and high spatiotemporal resolution when combined with microscopy. Consequently, a number of fluorescent NO probes are available, but each is hampered by certain selectivity and/or synthetic limitations.
  • benzotriazoles are pH sensitive (pK a 's f3 ⁇ 4i 6.69) near neutral pH.
  • the pH sensitivity can be solved by methylation of one of the amines, however the reactivity of the probe toward DHA was undesirably enhanced.
  • the aforementioned limitations complicate NO detection using ortho- diamines.
  • a series of metal ligand complexes for NO detection are also currently under development.
  • Cu n (FL 5 ) displays a fluorescence enhancement upon exposure to NO and can be used as a cellular imaging agent.
  • SWCN single-walled carbon nanotubes wrapped with 3,4- diaminophenyl-functionalized dextrans were used for in vitro or in vivo studies.
  • the NIR fluorescence of the SWCN is bleached by several reactive oxygen/nitrogen species, but at least NO does so more than others.
  • the present disclosure generally relates to nitric oxide probes. More particularly, the present disclosure relates to fluorescent nitric oxide probes and associated methods.
  • a nitric oxide probe of the present disclosure comprises a compound that is represented by the following Formula I:
  • Ri is an alkyl group or H
  • R2 is H, CN, SO 3 " , sulfamoyl, alkyl substituted sulfamoyls, COO, carbamoyl, or alkyl substituted carbamoyls
  • R3 is a methyl or other alkyl.
  • the present disclosure generally relates to nitric oxide probes. More particularly, the present disclosure relates to fluorescent nitric oxide probes and associated methods. [0010] The present disclosure provides a nitric oxide probe that may be used to detect and/or image NO.
  • a nitric oxide probe of the present disclosure comprises a compound that is represented by the following Formula I:
  • Ri is an alkyl group or H
  • R 2 is H, CN, SO 3 " , sulfamoyl, alkyl substituted sulfamoyls, COO " , carbamoyl, or alkyl substituted carbamoyls, R3 an alkyl group or methyl.
  • nitric oxide probes of the present disclosure are highly selective and have not been found to interfere with reactive oxygenated species, reactive nitrogen species, ascorbic acid (AA), and dehydroascorbic acid (DHA).
  • the probes of the present disclosure have also been shown to successfully respond to nitric oxide within cellular media. Due to the various roles of nitric oxide in the body, a sensing method utilizing a nitric oxide probe of the present disclosure can be applied to study any of the biological pathways where nitric oxide may be involved.
  • a nitric oxide probe of the present disclosure is also advantageous due to its facile synthesis, low pH dependence, and fast reaction kinetics.
  • a method of the present disclose comprises contacting a sample with a nitric oxide probe comprising a compound represented by Formula I, and detecting emitted fluorescence from the nitric oxide probe.
  • the detection of emitted fluorescence involves the detection of a turn on fluorescence signal from a dark background at the longer wavelength upon nitric oxide addition, rather than a fluorescent signal fluctuation from a non-zero background seen by most nitric oxide detecting systems.
  • Highly electron rich ortho- diamino aromatics were avoided so as to impede general oxidation by other reactive oxygen/nitrogen species and condensation with ascorbic acid (AA) analogs.
  • a spectrofluorometer may be used to detect emitted fluorescence from a nitric oxide probe.

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  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Molecular Biology (AREA)
  • Immunology (AREA)
  • Medicinal Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Pathology (AREA)
  • General Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Biochemistry (AREA)
  • Analytical Chemistry (AREA)
  • Hematology (AREA)
  • Urology & Nephrology (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Epidemiology (AREA)
  • Food Science & Technology (AREA)
  • Biotechnology (AREA)
  • Cell Biology (AREA)
  • Inorganic Chemistry (AREA)
  • Microbiology (AREA)
  • Biophysics (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)

Abstract

Nitric oxide probes comprising a compound represented by Formula I are provided. Methods of using this nitric oxide probes to detect nitric oxide are also provided.

Description

INTERNATIONAL PCT APPLICATION COVER SHEET
This is a request for filing an International PCT Application for Patent.
Title: Fluorescent Nitric Oxide Probes and Associated Methods
Inventor(s): (1) Eric V. Anslyn
Austin, Texas
(2) Youjun Yang
Austin, Texas (3) Michelle A. Ivy
Austin, Texas
Correspondence
Address: The address corresponding to Customer Number: 98820
Attention: Robert Riddle
Reg. No. 69,599
Reed Smith LLP
811 Main Street, Suite 1700
Houston, Texas 77002-6119
Attorney's Docket: 13-21012-WO
Client Reference: 6157-ANS
Government Interest: None
FLUORESCENT NITRIC OXIDE PROBES AND ASSOCIATED METHODS
Cross-Reference to Related Applications
[0001] This application claims the benefit of U.S. Provisional Application No. 61/656,416, filed June 6, 2012, which is incorporated by reference.
BACKGROUND
[0002] The biological roles of nitric oxide (NO) have led chemists and molecular biologists to seek cellular imaging agents responsive to this species. The creation of such agents derives from the pivotal role of NO in vasodilation as an endothelial-derived relaxing factor (EDPvF), and its function as a platelet aggregation inhibitor, neurotransmitter, antimicrobial agent, and due to its antitumor activity in cardiovascular, nervous, and immune systems. Although a variety of quantification techniques have been developed, fluorescence techniques are the most desirable because of their sensitivity, and high spatiotemporal resolution when combined with microscopy. Consequently, a number of fluorescent NO probes are available, but each is hampered by certain selectivity and/or synthetic limitations.
[0003] Currently, the most common approach for NO detection involves the use of oriho-diamino aromatics under aerobic conditions, which reacts with NO+ equivalent, presumably N2O3 to furnish fluorescent triazole derivatives. Turn-on fluorescence signals are achieved due to suspension of photoinduced electron transfer (PET). Examples using fluoresceins (such as DAF-2 DA), anthraquinones, rhodamines (such as DAR-4M AM), BODIPYs, and cyanines are documented. Such probes are among the current state of the art, yet severe limitations exist. First of all, in the presence of H202 peroxidase, OONO", OH ' , O2 ' , and CO3 ' the intrinsically electron rich diaminobenzene moiety is easily oxidized to an arylaminyl radical, which combines with NO and leads to triazoles. Second, dehydroascorbic acid (DHA) condenses with ortho-di im aromatics and turns on the fluorescence of such probes. It was reported that 1 mM DHA yielded a fluorescence signal with the commercial NO probes DAF-2 DA, DAR-4M AM, comparable to 300 nM and 100 μΜ of NO respectively. Third, benzotriazoles are pH sensitive (pKa'sf¾i6.69) near neutral pH. The pH sensitivity can be solved by methylation of one of the amines, however the reactivity of the probe toward DHA was undesirably enhanced. [0004] The aforementioned limitations complicate NO detection using ortho- diamines. Hence, a series of metal ligand complexes for NO detection are also currently under development. For example, Cun(FL5) , displays a fluorescence enhancement upon exposure to NO and can be used as a cellular imaging agent. However, given a dissociation constant (Kd) of 1.5 μΜ and the presence other metal ions in physiological conditions, it is a concern that the complex will release cytotoxic Cu2+. Complexes with lower Kd's were reported, though with decreased reactivity toward NO.
[0005] Most recently, single-walled carbon nanotubes (SWCN) wrapped with 3,4- diaminophenyl-functionalized dextrans were used for in vitro or in vivo studies. The NIR fluorescence of the SWCN is bleached by several reactive oxygen/nitrogen species, but at least NO does so more than others.
SUMMARY
[0006] The present disclosure generally relates to nitric oxide probes. More particularly, the present disclosure relates to fluorescent nitric oxide probes and associated methods.
[0007] The present disclosure provides a nitric oxide probe that may be used to detect and/or image NO and associated methods. In one embodiment, a nitric oxide probe of the present disclosure comprises a compound that is represented by the following Formula I:
Figure imgf000004_0001
Formula I
wherein Ri is an alkyl group or H; R2 is H, CN, SO3 ", sulfamoyl, alkyl substituted sulfamoyls, COO, carbamoyl, or alkyl substituted carbamoyls; and R3 is a methyl or other alkyl.
[0008] The features and advantages of the present invention will be readily apparent to those skilled in the art upon a reading of the description of the embodiments that follows.
DESCRIPTION
[0009] The present disclosure generally relates to nitric oxide probes. More particularly, the present disclosure relates to fluorescent nitric oxide probes and associated methods. [0010] The present disclosure provides a nitric oxide probe that may be used to detect and/or image NO. In one embodiment, a nitric oxide probe of the present disclosure comprises a compound that is represented by the following Formula I:
Figure imgf000005_0001
Formula I
wherein Ri is an alkyl group or H, R2 is H, CN, SO3 ", sulfamoyl, alkyl substituted sulfamoyls, COO" , carbamoyl, or alkyl substituted carbamoyls, R3 an alkyl group or methyl.
[0011 ] While not wishing to be bound to any particular theory, it is believed that upon introduction of nitric oxide under aerobic conditions to a nitric oxide probe of the present disclosure, a nitrosation reaction occurs to yield a nitrosamine, which is subsequently scavenged via an electronic aromatic substitution reaction. The product of this reaction has an extended conjugation system in comparison to the initially synthesized compound and displays red shifted spectral properties, which are easily detected through fluorescence.
[0012] One of the many advantages of the present disclosure, many of which are not discussed herein, is that the nitric oxide probes of the present disclosure are highly selective and have not been found to interfere with reactive oxygenated species, reactive nitrogen species, ascorbic acid (AA), and dehydroascorbic acid (DHA). The probes of the present disclosure have also been shown to successfully respond to nitric oxide within cellular media. Due to the various roles of nitric oxide in the body, a sensing method utilizing a nitric oxide probe of the present disclosure can be applied to study any of the biological pathways where nitric oxide may be involved. In addition to the advantage of high specificity, a nitric oxide probe of the present disclosure is also advantageous due to its facile synthesis, low pH dependence, and fast reaction kinetics.
[0013] In one embodiment, a method of the present disclose comprises contacting a sample with a nitric oxide probe comprising a compound represented by Formula I, and detecting emitted fluorescence from the nitric oxide probe. In some embodiments, the detection of emitted fluorescence involves the detection of a turn on fluorescence signal from a dark background at the longer wavelength upon nitric oxide addition, rather than a fluorescent signal fluctuation from a non-zero background seen by most nitric oxide detecting systems. Highly electron rich ortho- diamino aromatics were avoided so as to impede general oxidation by other reactive oxygen/nitrogen species and condensation with ascorbic acid (AA) analogs. In some embodiments, a spectrofluorometer may be used to detect emitted fluorescence from a nitric oxide probe.
[0014] Therefore, the present invention is well adapted to attain the ends and advantages mentioned as well as those that are inherent therein. While numerous changes may be made by those skilled in the art, such changes are encompassed within the spirit of this invention as illustrated, in part, by the appended claims.

Claims

What is claimed is:
1. A nitric oxide probe comprising a compound represented by the following Formula I:
Figure imgf000007_0001
Formula I
wherein Ri is an alkyl group or H; R2 is H, CN, SO3", sulfamoyl, alkyl substituted sulfamoyls, COO, carbamoyl, or alkyl substituted carbamoyls; and R3 is a methyl or other alkyl.
2. A method of detecting the presence of nitric oxide in a sample comprising:
contacting a sample with the nitric oxide probes of claim 1 ; and
detecting emitted fluorescence from the nitric oxide probe, wherein the emitted fluorescence indicates the presence of nitric oxide in the sample.
PCT/US2013/044037 2012-06-06 2013-06-04 Fluorescent nitric oxide probes and associated methods Ceased WO2013184641A1 (en)

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JP6613736B2 (en) * 2015-09-07 2019-12-04 セイコーエプソン株式会社 Substance detection method and substance detection apparatus
CN114394978B (en) * 2021-11-24 2023-05-23 徐州医科大学 Nitric oxide light-activated fluorescent probe and preparation method and application thereof

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WO2011013366A1 (en) * 2009-07-28 2011-02-03 株式会社 東芝 Neutron shield material, method for producing same, and cask for spent fuel

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US20080249321A1 (en) * 2004-03-04 2008-10-09 Tetsuo Nagano Fluorescent Probes
EP1780274B1 (en) * 2004-07-05 2012-09-12 Japan Science and Technology Agency Probe for nitrogen monoxide detection/quantitative determination, and method of nitrogen monoxide detection/quantitative determination using the same
US7494821B2 (en) * 2005-08-01 2009-02-24 Massachusetts Institute Of Technology Fluorescein based sensors for tracking nitric oxide in live cells
US8465985B2 (en) * 2007-03-01 2013-06-18 The University Of Tokyo Fluorescent probe
CA2796711A1 (en) * 2010-04-22 2011-10-27 Board Of Regents, The University Of Texas System Fluorescent nitric oxide probes and associated methods

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Title
YANG, Y ET AL.: "'A'Highly Selective Low-Background Fluorescent Imaging Agent for Nitric Oxide'", J. AM. CHEM. SOC., vol. 132, 30 July 2010 (2010-07-30), pages 13114 - 13116 *

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