WO2010024609A2 - 단백질분해효소 활성 측정용 나노입자 센서 및 그 제조방법 - Google Patents
단백질분해효소 활성 측정용 나노입자 센서 및 그 제조방법 Download PDFInfo
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- WO2010024609A2 WO2010024609A2 PCT/KR2009/004794 KR2009004794W WO2010024609A2 WO 2010024609 A2 WO2010024609 A2 WO 2010024609A2 KR 2009004794 W KR2009004794 W KR 2009004794W WO 2010024609 A2 WO2010024609 A2 WO 2010024609A2
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- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
- C12Q1/34—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving hydrolase
- C12Q1/37—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving hydrolase involving peptidase or proteinase
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- G—PHYSICS
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- 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
- G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
- G01N33/543—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals
- G01N33/54313—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals the carrier being characterised by its particulate form
- G01N33/54346—Nanoparticles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y15/00—Nanotechnology for interacting, sensing or actuating, e.g. quantum dots as markers in protein assays or molecular motors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y5/00—Nanobiotechnology or nanomedicine, e.g. protein engineering or drug delivery
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- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S977/00—Nanotechnology
- Y10S977/70—Nanostructure
- Y10S977/773—Nanoparticle, i.e. structure having three dimensions of 100 nm or less
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- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S977/00—Nanotechnology
- Y10S977/70—Nanostructure
- Y10S977/773—Nanoparticle, i.e. structure having three dimensions of 100 nm or less
- Y10S977/774—Exhibiting three-dimensional carrier confinement, e.g. quantum dots
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- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S977/00—Nanotechnology
- Y10S977/70—Nanostructure
- Y10S977/788—Of specified organic or carbon-based composition
- Y10S977/802—Virus-based particle
- Y10S977/806—Virus-based particle with exterior chemical attachment
- Y10S977/807—Exterior attachment for detection
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- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S977/00—Nanotechnology
- Y10S977/70—Nanostructure
- Y10S977/811—Of specified metal oxide composition, e.g. conducting or semiconducting compositions such as ITO, ZnOx
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- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S977/00—Nanotechnology
- Y10S977/902—Specified use of nanostructure
- Y10S977/932—Specified use of nanostructure for electronic or optoelectronic application
- Y10S977/953—Detector using nanostructure
Definitions
- the present invention relates to a nanoparticle sensor for measuring protease activity for imaging of protease and a method of manufacturing the same.
- proteases regulate protein activity or fate through hydrolysis of irreversible peptide bonds. For example, intracellular or external positioning of proteins or separation from the cell surface, activation or deactivation of various growth factor hormones, cytokines, enzyme proteases, and conversion of receptor agonists to antagonists. .
- proteolytic enzymes play a role in controlling a variety of cellular functions in a wide range, and this is achieved through the degradation of bioactive substances, so the function and role of proteolytic enzymes for the life phenomenon of all living things is very important.
- the lack or lack or overexpression of certain proteolytic enzymes has serious consequences, which can be manifested in cancer, arthritis, neurodegenerative diseases, cardiovascular and autoimmune inflammatory diseases. Therefore, in the pharmaceutical industry, protease and its matrix protein are the main targets of drug development and are of great interest.
- MMP matrix metalloprotease
- MMP has been found to play an important role in cancer growth, such as new angiogenesis, cancer cell infiltration, metastasis.
- Cell apoptosis also plays a key role in biological processes based on the development and healing of various diseases, and plays a pivotal role in immune system function and eliminating defective cells. If cell death does not work properly or is damaged by pathogens, the consequences can be fatal and can develop into various refractory diseases such as cancer, Alzheimer's disease and AIDS. Accordingly, the development of new drugs targeting caspase, which plays a pivotal role in MMP and cell death, is being conducted in various developed pharmaceutical giants.
- proteolytic enzymes currently used include 2-D gels, multi-step liquid chromatography, the enzyme immunoassay (The Enzyme-Linked ImmunoSorbent Assay, or ELISA), or phosphors on peptide substrates that are specifically degraded to proteolytic enzymes. And a method of measuring the degree of peak shift by spectroscopy.
- these methods require a multi-step measurement protocol and are not economically and time efficient for use in screening many drugs, such as drug development.
- the above method is impossible to detect the expression of a specific protease in the body or to quantitatively analyze the expression and use it for early diagnosis of the disease.
- the most representative technique is a polymer sensor for protease imaging developed at Harvard Medical School in 2001.
- the sensor consists of a chemical bond of a phosphor-peptide substrate-biocompatible polymer capable of degradation by protease.
- near-infrared phosphors are at close distances (tens of nm)
- the emission and excitation spectra of the phosphors are shared, and the fluorescence of the phosphors is quenched by the fluorescence resonance energy transfer (FRET) principle.
- FRET fluorescence resonance energy transfer
- the fluorescence is quenched by the physical binding of the phosphor-phosphor, but the peptide is decomposed by protease, and the fluorescence is restored when the distance between the phosphor-phosphor increases.
- the degree of protease expression can be imaged.
- the most important aspect of optical imaging is the signal-to-noise (S / N) ratio. High background fluorescence inevitably results in lower image resolution in the target biomolecule or tissue.
- the quenching of the phosphor is very important and the fluorescence does not show any fluorescence in the quenched state, but when the fluorescence emits light at a desired biomolecule or disease site, a high S / N ratio can be obtained, resulting in a clear image.
- the sensor was quenched by using self-quenching, which fluoresced when the near-infrared phosphors were in close proximity.
- self-quenching due to FRET is made when the phosphor is very close and there is a disadvantage that the fluorescence extinction rate is not excellent.
- black hole quencher which is a complete light absorber, has various absorption wavelengths.
- BHQ-1 absorbs fluorescence efficiently at 480-580 nm
- BHQ-2 has 550-650 nm
- BHQ-3 has 620-730 nm wavelength.
- a single molecule of the phosphor-peptide substrate-quencher is capable of restoring fluorescence when the peptide substrate is degraded by proteolytic enzymes to measure the amount of protease, and exhibits a higher fluorescence quenching rate than auto-quenching of the phosphor-phosphor bonds.
- the phosphor-peptide substrate-quencher can only be applied to in vitro kits that quantitatively analyze the amount of protease in the reaction solution with low in vivo stability and cell permeability, which are peptide specific properties. .
- the phosphor-peptide substrate-quencher since a single molecule of the phosphor-peptide substrate-quencher is difficult to emit high fluorescence that can be imaged only in vivo, it is difficult to measure protein expression in vivo in real time.
- An object of the present invention is a biocompatible polymer comprising a phosphor, a peptide substrate specifically degraded by a protease, and a quencher that absorbs luminescence of the phosphor for selectively imaging proteases expressed in cells and tissues in the body.
- the present invention provides a nanoparticle sensor for measuring protease activity bound to nanoparticles and a method of manufacturing the same.
- Another object of the present invention to provide a composition for diagnosing cancer, stroke, autoimmune diseases or quantitative analysis of proteolytic enzymes using the nanoparticle sensor as an active ingredient.
- the present invention provides a nanoparticle sensor for measuring protease activity coupled to a biocompatible polymer nanoparticle on a peptide substrate to which a phosphor and a quencher are combined and specifically degraded by a protease.
- the nanoparticle sensor for measuring protease activity may be one having the following Structural Formula 1:
- A is a phosphor
- B is a peptide substrate specifically degraded by the protease
- C is a quencher that can absorb the luminescence of the phosphor and exhibit a quenching effect
- D is a cancer And nanoparticles consisting of a biocompatible polymer that can be specifically accumulated in the inflammatory disease site.
- the -SH group of the carboxylic acid or cysteine of the C-terminal end of the peptide substrate may be one that the biocompatible polymer nanoparticles are bonded.
- the peptide substrate may be peptide coupled with the phosphor and the quencher.
- the biocompatible polymer nanoparticles a biocompatible polymer selected from the group consisting of chitosan, dextran, hyaluronic acid, polyamino acid and heparin and a hydrophobic material selected from the group consisting of bile acids, fatty acids and cholesterol This may be a bonded nanoparticle.
- the protease is matrix metalloproteinases (MMP), thrombin, FXIIIa (factor Xiiia), caspase, urokinase plasminogen activator (urokinase plasminogen activator) , uPA), HIV protease, dipeptidyl peptidase (DPP-IV) and proteasomes may be selected from the group consisting of.
- the phosphor may be a phosphor emitting red or near infrared fluorescence, and the phosphor is a group consisting of cyanine, fluorescein, tetramethylrodamine, alexa, bodiphy, and derivatives thereof. It may be selected from.
- the peptide may be a peptide substrate that is specifically degraded by protease.
- the quencher may be selected from the group consisting of blackhole quencher, blackberry quencher quencher and derivatives thereof capable of quenching fluorescence.
- the protease is MMP
- the A is Cy5.5
- the B is a peptide substrate that is specifically cleaved to MMP
- the C is BHQ-3
- the D is chitosan Nanoparticles.
- the present invention provides a composition for screening the efficacy of a drug or drug that inhibits overexpression of the protease, containing the nanoparticle sensor for measuring protease activity as an active ingredient.
- the present invention provides a method for producing a nanoparticle sensor for measuring the protease activity, comprising the following steps:
- the present invention in another aspect, the squamous cell carcinoma, uterine cancer, cervical cancer, prostate cancer, head and neck cancer, pancreatic cancer, brain tumor, breast cancer, liver cancer, skin cancer, esophageal cancer containing the nanoparticles for measuring the protease activity as an active ingredient
- a cancer diagnostic composition selected from the group consisting of, testicular cancer, kidney cancer, colon cancer, rectal cancer, stomach cancer, kidney cancer, bladder cancer, ovarian cancer, cholangiocarcinoma and gallbladder cancer.
- the present invention may provide a composition for diagnosing autoimmune diseases, containing the nanoparticles for measuring protease activity as an active ingredient.
- the autoimmune disease is an inflammatory disease, may be osteoarthritis or rheumatoid arthritis.
- the present invention provides a composition for quantitative analysis of the protease expressed in cells and tissues, containing the nanoparticle sensor for measuring protease activity as an active ingredient.
- the nanoparticle sensor for measuring protease activity in which the phosphor according to the present invention, a peptide substrate specifically degraded by proteolytic enzymes, and a quencher that absorbs light emission of the phosphor are bound to biocompatible polymer nanoparticles.
- the fluorescence does not emit light due to the high quenching ability of the quenching phosphor, but when the peptide substrate is decomposed by a specific protease, the fluorescence specifically emits light. It can be useful for the early diagnosis of various diseases and incurable diseases, such as autoimmune diseases such as cancer, osteoarthritis, rheumatoid arthritis, dementia, and the like for screening new drugs such as inhibitors that inhibit the disease.
- the present invention is to maximize the extinction rate of fluorescence by combining the phosphor and the quencher to any peptide substrate that is specifically degraded to the proteolytic enzymes expressed in cells and the body, it is biocompatibility, cell
- the present invention relates to a nanoparticle sensor for measuring protease activity by binding to permeable polymer nanoparticles, reacting specifically to various proteases, and causing fluorescence to occur only on specific target proteases.
- the nanoparticle sensor for measuring protease activity may be a nanoparticle sensor for measuring protease activity expressed in cells or living tissues with the following structural formula 1:
- A is a phosphor
- B is a peptide substrate specifically degraded by the protease
- C is a quencher that can absorb the luminescence of the phosphor and exhibit a quenching effect
- D is a cancer And nanoparticles composed of biocompatible polymers that can accumulate specifically at inflammatory disease sites.
- the -SH group of the carboxylic acid or cysteine of the C terminal of the peptide substrate may be bonded to the nanoparticles.
- the phosphor and the quencher in the peptide substrate can bind to any site capable of forming a peptide bond with the peptide substrate, for example, may be bonded to the amino terminal, lysine, cysteine, or carboxylic acid. .
- the protease is matrix metalloproteinases (MMP), thrombin, FXIIIa (factor Xiiia), caspase, urokinase plasminogen activator (uPA), HIV protease, DPP- IV (dipeptidyl peptidase) or proteasome (proteasome) and the like,
- the peptide substrate (C) is a peptide substrate that is specifically degraded by proteolytic enzymes, for example, targets such as matrix metalloprotenase (MMP), thrombin, caspases activated by apoptosis, and proteasomes. It may be a peptide.
- MMP matrix metalloprotenase
- thrombin thrombin
- caspases activated by apoptosis
- proteasomes proteasomes. It may be a peptide.
- the peptide substrate used depends on the particular protease.
- peptide substrate sequences for various proteolytic enzymes are shown in Table 1 below.
- the peptide substrate used in the nanoparticle sensor according to the present invention is not limited to peptides of these specific sequences.
- the phosphor (A) may be a phosphor that emits fluorescence in the visible region or near infrared rays, for example, fluorescein, fluoresce, BODYPY, tetramethylrhodamine, Alexa Cyanine, allopicocyanine, phosphors that generate other fluorescence, or derivatives thereof may be used.
- a phosphor having a high quantum yield it is preferable to use a phosphor having a high quantum yield.
- cyanine-based and Alexa-based emit and absorb near-infrared light, and thus, interference or absorption with cells, blood, and biological tissues is minimized.
- the quencher (C) is a quencher chemically bonded to the peptide substrate to which the phosphor is bound to absorb a light of the wavelength emitted by the phosphor to achieve a strong quenching effect (peptide) by a specific protease If not resolved, the fluorescence does not emit, and this quenching effect occurs when the distance between the phosphor and the quencher is within several tens of nm. In other words, when the peptide substrate is decomposed by reacting with a specific protease, the phosphor-binding phosphor and the quencher are separated from each other, and the quenching effect is lost. Analysis is possible.
- the quencher is a quencher that can absorb the wavelength of the light emitted from the phosphor to maximize the quencher effect, because the quencher having the same wavelength as or similar to the emission wavelength of the phosphor can be used to maximize the quencher effect
- the kind of quencher used depends on the range of the light emission wavelength of the phosphor.
- the quencher is a dark quencher, which is a material capable of quenching the fluorescence of the phosphor because it absorbs the energy of the excited phosphor but does not emit the fluorescence energy outside.
- Black hole quenchers BHQ, WO01 / 86001, Biosearch Technologies, Inc. Novato, CA, USA
- blackberry quencher Berry & Associates Inc. Dexter, MI, USA.
- the nanoparticles (D) have a molecular weight of 1,000 to 500, 500 to 500nm of uniform size in aqueous solution, such as chitosan, poly (ethylene imine), poly (amino acid), and the like. It may be a nanoparticle made by combining a hydrophobic compound in a biocompatible polymer of 1,000,000 Da.
- the term "biocompatibility" is harmless to a living body without causing a toxic response, an inflammatory response, an immune response, a carcinogenicity, etc., and has a good affinity with a living tissue or a biological system without causing an immunological rejection.
- the biocompatible polymer includes chitosan, dextran, hyaluronic acid, polyamino acid, heparin, and the like, and preferably, may be hydrophilic chitosan, and all kinds of chitosans having a molecular weight of 10 3 to 10 6 , in particular, biocompatibility.
- Water-soluble chitosan which is an excellent natural polymer, and more preferably, glycol chitosan having increased water solubility by introducing a glycol group.
- Hydrophobic substances bound to the biocompatible polymer include bile acids, fatty acids, cholesterol, and the like.
- the peptide (B) is a peptide substrate that is specifically degraded to various enzymes overexpressed in the cancer and inflammatory diseases
- Phosphor (A) is Cy5.5
- a cyanine phosphor that binds to the amino terminus of the peptide and exhibits near-infrared fluorescence
- the quencher (C) is combined with lysine and cysteine of the peptide to absorb the fluorescence of the phosphor to provide a quenching effect. It can be a black hole quencher-3 (BHQ-3) that can be maximized.
- the nanoparticles (D) is capable of chemically binding to the -SH portion of the carboxylic acid or cysteine of the C terminal end portion of the peptide (B) to specifically deliver the lumen type phosphor ABC to cancer and inflammation sites Can act as a carrier.
- the nanoparticle sensor since the nanoparticle sensor is based on polymer nanoparticles, it has cell permeability and can be specifically accumulated in inflammatory disease sites including cancer tissues in vivo by an enhanced permeability retention (EPR) effect.
- EPR enhanced permeability retention
- the expression level of protease specifically expressed in cells and in vivo disease sites can be measured and imaged non-invasively.
- the nanoparticle sensor for protease activity measurement for imaging of the protease according to the present invention and the phosphor and quencher coupled to the peptide substrate that is specifically degraded to a specific protease. It can be prepared by binding to the polymer nanoparticles.
- the method may further include purifying or identifying a phosphor-peptide-quencher-nanoparticle sensor manufactured by the above method.
- the peptide substrate may be appropriately synthesized, and such synthesis may use various peptide synthesis methods known to those skilled in the art, such as Fmoc strategy according to solid phase synthesis. .
- the peptide is bonded to one end of the peptide
- the protecting group at the other end of the derivative can be removed, and the phosphor capable of binding to this terminal functional group or a derivative thereof can be reacted to bind.
- the biocompatible polymer is chemically bonded using a hydrophilic biopolymer and a hydrophobic material to uniform nano size in an aqueous solution state. Obtained by forming particles of.
- the distance between the phosphor (A) and the quencher (C) is adjusted to maximize the quenching effect occurring between the phosphor and the quencher, so that the fluorescence of the phosphor can be minimized. It is preferable to synthesize the phosphor to minimize the fluorescence intensity by the quenching effect caused by keeping the distance between the phosphor and the quencher within several tens of nanometers.
- the prepared protease activity-detecting nanoparticle sensor phosphor-peptide-quencher-nanoparticle derivatives can be easily changed and controlled the phosphor, quencher, and peptide substrate, the desired specific protease sensor And since it is easy to control a variety of sensors of the desired wavelength range, it is possible to design a sensor for a variety of protease.
- the activity and inhibition of protease can be screened quickly through imaging, it can be applied to drug screening, real-time cell imaging and non-invasive tissue imaging of cells and tissues, and specifically, the nanoparticle sensor Since the presence or absence, activity, and inhibition of protease present in specific tissues or cells in vivo can be easily determined, it can be used for various purposes such as cell imaging, specific tissue imaging, drug delivery, and the like.
- the nanoparticle sensor for measuring protease activity is squamous cell carcinoma, uterine cancer, cervical cancer, prostate cancer, head and neck cancer, pancreatic cancer, brain tumor, breast cancer, liver cancer, skin cancer, esophageal cancer, testicular cancer, kidney cancer, colon cancer, rectal cancer , Gastric cancer, kidney cancer, bladder cancer, ovarian cancer, bile duct cancer, gallbladder cancer, and the like, and can be used in the method of imaging proteolytic enzymes in inflammatory diseases such as rheumatoid arthritis, osteoarthritis, in one embodiment, the protein Sensors for imaging degrading enzymes may be used in methods of imaging proteolytic enzymes in intractable diseases including dementia, stroke, and the like.
- the present invention for example, squamous cell carcinoma, uterine cancer, cervical cancer, prostate cancer, head and neck cancer, pancreatic cancer, brain tumor, breast cancer, liver cancer, skin cancer, esophageal cancer containing the nanoparticles for measuring the protease activity as an active ingredient ,
- a cancer diagnostic composition selected from the group consisting of testicular cancer, kidney cancer, colorectal cancer, rectal cancer, stomach cancer, kidney cancer, bladder cancer, ovarian cancer, cholangiocarcinoma and gallbladder cancer, or compositions for diagnosing dementia or stroke or autoimmune diseases, specifically osteoarthritis or rheumatoid It relates to a composition for diagnosing inflammatory diseases including arthritis.
- the nanoparticle sensor for measuring the protease activity by using the nanoparticle sensor for measuring the protease activity, containing it as an active ingredient of the protease expressed in cells and tissues It may be a composition for quantitative analysis or a composition for screening efficacy of a drug or a drug that inhibits overexpression of the protease.
- compositions are in vivo ( in vivo ) And in vitro ( in in vitro As it can be applied, it can be used for various purposes such as high-throughput screening method and early disease diagnosis necessary for new drug development.
- 1 is a protonase activity measuring sensor of the present invention consisting of peptides, near-infrared phosphors, quencher and polymer nanoparticles that can be imaged by strong fluorescence when specifically decomposed by protease in fluorescence quenching state It is a schematic diagram of.
- Figure 2 is a schematic diagram showing the principle that the strong fluorescence is restored by the various proteolytic enzymes over-expressed at the disease site by accumulating the polymer nanoparticle-based protease activity sensor specifically in the inflammation site.
- Figure 3 shows an example of the synthesis of P1 consisting of phosphor-peptide-quencher.
- Figure 4 (a) is a schematic diagram of the synthesis of glycol chitosan-bile acid derivatives that can form a uniform nanoparticles in the aqueous solution.
- Figure 4 (b) is a particle size distribution and TEM picture showing that the glycol chitosan-bile acid derivatives form uniform nanoparticles in the aqueous solution.
- Figure 5 (a) shows that as the concentration of protease MMP-2 increases the degree of fluorescence of PN1 is constantly increased to show that it is possible to enzymatically analyze the protease.
- Figure 5 (b) shows that the degree of fluorescence is constantly increased as the concentration of protease MMP-2 is increased through the fluorescence imaging equipment.
- FIG. 6 (a) shows MMP-2 inhibitor treatment after administration of PN1 to cancer-induced cancer tissues and normal tissues after 1 and 2 hours of animal model without MMP-2 inhibitor treatment. Near-infrared image of each obtained cancer tissue site is shown.
- Figure 6 (b) shows the cancer tissue site of the cancer-induced cancer tissues and normal tissues treated with MMP-2 inhibitors after administration of PN1, a protease sensor, and an animal model not treated with MMP-2 inhibitors. Fluorescence intensity is represented numerically.
- Figure 7 shows the fluorescence microscopy of cancer-induced cancer tissues and normal tissues after administration of PN1, a protease sensor, to the MMP-2 inhibitor treatment and cancer tissues in an animal model not treated with the MMP-2 inhibitor. The picture was observed with.
- FIG. 8 shows each cancer tissue obtained after 2 hours of an MMP-13 inhibitor treatment and an animal model not treated with the MMP-13 inhibitor after administration of PN3, which is a protease sensor, to an osteoarthritis-induced joint region and a normal joint region. Near-infrared image of the site is shown.
- the peptide is prepared by Fmoc method according to solid phase synthesis, and chemically binds the phosphor and quencher to the prepared peptide sequence. It was.
- Phosphors were Cy5.5 (ex / em, 670/690), TRITC (ex / em, 547/572), FITC (ex / em, 490/520), and Cy5.5, TRITC, FITC, respectively.
- the quenchers capable of quenching the fluorescence of phosphors are BHQ-3 (abs. 620 nm-730 nm), BHQ-2 (abs. 550 nm-650 nm) and BHQ-1 (abs. 48- nm-580 nm) (Biosearch Technologies Inc.) were used respectively.
- 5 mg of peptide substrate, 8.5 mg of a near-infrared phosphor Cy5.5-HNS ester, 8 ⁇ l of N-methylmorpholine, and 0.3 mg of 4-dimethylaminopyridine were dissolved in 200 ⁇ l of dimethylformamide at room temperature for 12 hours. Reacted.
- reaction solution was precipitated with 4 ml of cold ethyl ether and centrifuged to remove the supernatant and washed again with 2 ml of cold ethyl ether. Remove the ethyl ether from the surface and dry it with a speed vacuum or vacuum oven, Cy5.5-Gly-Pro-Leu-Gly-Val-Arg (Pbf) -Gly-Lys (Boc) -Gly -Gly-COOH precursor was prepared.
- Agilent ZORBAX SB-C18 column 9.4 x 150 mm
- 0.1% TFA HPLC was stabilized with 95% saline with 5% acetonitrile, 0.1% TFA.
- the material was passed through gradient elution for 20 minutes (5% at 0 minutes, 22% at 5 minutes, 40% acetonitrile (with 0.1% TFA) vs DW (with 0.1% TFA) at 20 minutes). Separated.
- the HPLC was stabilized with 95% saline with nitrile, 0.1% TFA.
- the material was separated via gradient elution (5% at 0 min, 30% at 5 min, 70% acetonitrile (with 0.1% TFA) vs. saline with 0.1% TFA at 25 minutes) for 25 minutes.
- Biocompatible glycol chitosan (molecular weight 250,000 Da) was used as a polymer to prepare biocompatible polymer nanoparticles having high selectivity for cancer and inflammatory tissues by EPR effect and cell permeability. Cholanic acid was used, and the final synthesized material was glycol chitosan-bile acid (FIG. 4).
- the phosphor-peptide-quencher prepared in 1-1 was chemically bonded to the polymer nanoparticles, thereby preparing a nanoparticle sensor for measuring polymer nanoparticle-based protease activity according to the present invention.
- P1, P2, and P3 in the phosphor-peptide-quencher prepared in 1-1 were bound to glycol chitosan-based nanoparticles.
- Nanoparticles prepared using P1, P2 or P3 and chitosan-bile acid by the above production method were named PN1, PN2, PN3.
- the selection specificity for the proteolytic enzyme of the MMPs specific polymer based sensor prepared in Example 1 was observed.
- Each of the sensors (PN1, PN2, PN3) was added to the reaction solution to which the proteolytic enzyme was added, and the fluorescence intensity (FI) was restored over time.
- PN1, PN2, PN3 (10 ⁇ g / ml each), in which fluorescence is restored by specifically reacting to MMPs, are activated by MMP-2, MMP-3, MMP-7, MMP-9 or MMP-13 (1 Pg / ml) and fluorescence expression by enzyme digestion was observed.
- MMPs were added to TCNB reaction solution (0.1 M Tris, 5 mM calcium chloride, 200 mM NaCl, 0.1% Brij) to which p-aminophenyl mercuric acid was added to activate each MMPs. After the reaction was performed at 37 ° C. for 1 hour, the activated MMPs were reacted with the polymer nanoparticle-based sensor at 200 ° C. in each 96 well at 37 ° C., and then the degree of fluorescence recovery over time was observed through a fluorescence spectrometer.
- PN1 restored 9.7, 2.0, 1, 9.2, and 12.3-fold fluorescence when reacted with MMP-2, MMP-3, MMP-7, MMP-9, and MMP-13 for 60 minutes, respectively. Indicated. Therefore, it was found that PN1 reacted with MMP-2, MMP-3, MMP-9, and MMP-13 to restore relatively high fluorescence.
- PN2 resulted in 1.8, 3.6, 3.9, 1.3, and 4.8-fold fluorescence recovery after 60 minutes of reaction with MMP-2, MMP-3, MMP-7, MMP-9, and MMP-13, as shown in Table 3 below. Indicated. Therefore, it was found that PN2 reacted with MMP-3, MMP-7, and MMP-13 to restore relatively high fluorescence.
- PN3 resulted in 3.7, 2.4, 0.8, 1.3, and 4.3-fold fluorescence recovery after 60 minutes of reaction with MMP-2, MMP-3, MMP-7, MMP-9, and MMP-13, as shown in Table 4 below. Indicated. Therefore, it was found that PN3 reacted with MMP-2, MMP-3, and MMP-13 to restore relatively high fluorescence.
- the concentration of protease was quantitatively analyzed using the sensors prepared in Example 1. Specifically, in the same manner as in Experimental Example 1, after the concentration of 0, 0.55, 1, 3, 7, 14 nmol / L activated MMP-2 was added to the PN1 sensor, and reacted at 37 °C for 60 minutes The degree of fluorescence emission was observed with a fluorometer and a digital imaging system (Kodak Image Station 4000MM).
- SCC7 squamous cell carcinoma
- SCC7 Squamous cell carcinoma
- PN1 100 ⁇ l, 100 ⁇ g
- PN1 and MMP-2 expression inhibitors inhibitors
- the sensor administered to a normal mouse (No treat) without cancer cells did not emit fluorescence, but the strong fluorescence over time in the mouse (PN1) containing cancer cells As a result, it was possible to observe bright light emission.
- strong fluorescence recovery in MMP-2-expressing cancer cells did not occur when MMP-2 inhibitors inhibited the activity of MMP-2 (PN1 + inhibitor). Since the fluorescence recovery rate was 2.2 times lower when the MMPs activity inhibitor was administered as shown in FIG. 6 (b), PN1 specifically showed strong fluorescence in response to cancer cells overexpressing MMP-2 in vivo. It was demonstrated that the expression level of MMPs expressed in the cancer cells and the cancer cells resulting therefrom can be specifically imaged.
- MMPs are overexpressed, and thus, early diagnosis of arthritis is possible using MMPs as markers.
- MMP-13 is known to be overexpressed at the osteoarthritis disease site, and thus, an early diagnosis of osteoarthritis through MMP-13 imaging was attempted in an animal model of osteoarthritis disease using the sensor manufactured in Example 1.
- PN2 PN2 (100 ⁇ l, 100 ⁇ g) was administered to normal and osteoarthritis joint tissues, and observed using a digital imaging system (Kodak Image Station 4000MM).
- PN2 administered to normal joint tissue did not fluoresce, but strong fluorescence was observed in osteoarthritis joint tissue (OA) overexpressing MMP-13.
- OA osteoarthritis joint tissue
- strong fluorescence restoration in the MMP-13-expressing osteoarthritis site was not observed when the MMP-13 inhibitor was inhibited (+ inh). Therefore, PN3 showed strong fluorescence at the site of osteoarthritis disease in which MMP-13 was overexpressed in vivo, and thus, it was shown that the expression of MMPs expressed in vivo and the inflammatory disease caused by it can be specifically imaged.
- OA osteoarthritis joint tissue
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Abstract
Description
| 질환 | 단백질 분해효소 | 펩타이드 기질/ 분해되는 site |
| 암 (Cancer) | MMP-2/9 | PLG/LP |
| MMP-7 | VPLS/LTM | |
| 죽상동맥경화증(Atherosclerosis) | MMP-13 | PLG/MRG |
| 류마티즘(Rheumatoid) | Cathepsins B | K/K |
| Cathepsins D | PICF/FRL | |
| 관절염(arthritis) | PSA | HSSLQ/ |
| 세포사멸(Apoptosis) | Capspase-1 | WEHD/ |
| Capspase-3 | DEVD/ | |
| 고지혈증(Cardiovascular) | Thrombin | F(Pin)R/S |
| Fijian | NQ/EQVS | |
| 당뇨병(Diabetes) | DPP-Ⅳ | GP/GP |
| HIV protease | HSV | GVSQNY/PIVG |
| 단백질분해효소에 대한 형광 세기 (FI) 변화 | |||||
| 시간 (분) | MMP-2 | MMP-3 | MMP-7 | MMP-9 | MMP-13 |
| 0 | 378.6 | 307.4 | 278.5 | 350.5 | 664.6 |
| 10 | 952.3 | 284.9 | 288.3 | 680.3 | 1933 |
| 20 | 1715 | 362.6 | 287.2 | 1350 | 3933 |
| 30 | 2387 | 421.3 | 290.1 | 2010 | 5292 |
| 40 | 2916 | 506.4 | 294.2 | 2248 | 6512 |
| 50 | 3210 | 537.3 | 299.6 | 2846 | 7608 |
| 60 | 3658 | 629.5 | 302.1 | 3221 | 8182 |
| 단백질분해효소에 대한 형광 세기 (FI) 변화 | |||||
| 시간 (분) | MMP-2 | MMP-3 | MMP-7 | MMP-9 | MMP-13 |
| 0 | 271.1 | 336.1 | 327.9 | 182 | 286.7 |
| 10 | 245 | 225.7 | 653 | 186.3 | 723.5 |
| 20 | 350 | 407.8 | 992.8 | 186 | 1063 |
| 30 | 280.2 | 842.8 | 1161 | 187.1 | 1231 |
| 40 | 334.8 | 946 | 1252 | 239.4 | 1350 |
| 50 | 426.1 | 1073 | 1310 | 233.3 | 1361 |
| 60 | 493.5 | 1229 | 1276 | 247.9 | 1373 |
| 단백질분해효소에 대한 형광 세기 (FI) 변화 | |||||
| 시간 (분) | MMP-2 | MMP-3 | MMP-7 | MMP-9 | MMP-13 |
| 0 | 77.37 | 102.5 | 104.3 | 100.9 | 100.6 |
| 10 | 90.98 | 128.3 | 90.14 | 106.1 | 131.2 |
| 20 | 125.2 | 143.2 | 87.61 | 109.1 | 166.1 |
| 30 | 151.3 | 174.4 | 86.97 | 114.3 | 234.4 |
| 40 | 189.4 | 199.5 | 91.48 | 127.6 | 280.7 |
| 50 | 238.5 | 217.2 | 94.88 | 129.8 | 355.3 |
| 60 | 286.7 | 249.3 | 86.33 | 133.3 | 455.5 |
Claims (16)
- 형광체 및 소광체가 결합되고, 단백질분해효소에 의해 특이적으로 분해되는 펩타이드 기질이 생체 적합성 고분자 나노입자에 결합된 단백질분해효소 활성 측정용 나노입자 센서.
- 제2항에 있어서, 상기 펩타이드 기질의 C-터미널 말단의 카르복실산 또는 시스테인의 -SH기와 상기 생체적합성 고분자 나노입자가 결합되는 것인 단백질분해효소 활성 측정용 나노입자 센서.
- 제2항에 있어서, 상기 펩타이드 기질은 상기 형광체 및 상기 소광체와 펩티드 결합된 것인 단백질분해효소 활성 측정용 나노입자 센서.
- 제1항에 있어서, 상기 생체적합성 고분자 나노입자는, 키토산, 덱스트란, 히알루론산, 폴리아미노산 및 헤파린으로 이루어진 군에서 선택된 생체 적합성 고분자 및 담즙산, 지방산 및 콜레스테롤로 구성된 군에서 선택된 소수성 물질이 결합된 나노입자인 것인 단백질분해효소 활성 측정용 나노입자 센서.
- 제1항에 있어서, 상기 단백질분해효소는 기질 금속단백분해효소(matrix metalloproteinases; MMP), 트롬빈, FXIIIa(factor Xiiia), 카스파제(caspase), 우로키나아제 플라스미노겐 활성제(urokinase plasminogen activator, uPA), HIV 프로테아제, DPP-IV(dipeptidyl peptidase) 및 프로테아좀(proteasome)으로 이루어지는 군에서 선택되는, 세포 또는 생체 조직 내에서 발현되는 단백질분해효소 활성 측정용 나노입자 센서.
- 제1항에 있어서, 상기 형광체는 적색 또는 근적외선의 형광을 발광하는 형광체인 것인 단백질분해효소 활성 측정용 나노입자 센서.
- 제7항에 있어서, 상기 형광체는 시아닌, 플루오레신, 테트라메틸로드아민, 알렉사, 보디피 및 이들의 유도체로 이루어지는 군에서 선택되는 것인 단백질분해효소 활성 측정용 나노입자 센서.
- 제1항에 있어서, 상기 소광체는 형광을 소광시킬 수 있는 블랙홀 소광체(blackhole quencher), 블랙베리(blackberry quencher) 및 이들의 유도체로 이루어지는 군에서 선택되는 것인 단백질분해효소 활성 측정용 나노입자 센서.
- 제1항 내지 제5항 중 어느 하나의 항에 있어서, 상기 단백질분해효소는 MMP이고, 상기 A는 Cy5.5이고, 상기 B는 MMP에 특이적 분해되는 펩타이드 기질이고, 상기 C는 BHQ-3이고, 상기 D는 키토산 나노입자인 것인 단백질분해효소 활성 측정용 나노입자 센서.
- 다음의 단계를 포함하는 제1항에 따른 단백질분해효소 활성 측정용 나노입자 센서의 제조방법:(a) 특정 단백질분해효소에 특이적인 펩타이드 기질에 근적외선 형광체를 반응시켜 결합하는 단계;(b) 상기 펩타이드 기질에 소광체를 결합시키는 단계; 및(c) 상기 형광체-펩타이드 기질-소광체 복합체에 고분자 나노입자를 결합시켜 단백질분해효소 활성 측정용 나노입자 센서를 제조하는 단계.
- 제1항에 따른 단백질분해효소 활성 측정용 나노입자 센서를 유효성분으로 함유하는 편평상피세포암, 자궁암, 자궁경부암, 전립선암, 두경부암, 췌장암, 뇌종양, 유방암, 간암, 피부암, 식도암, 고환암, 신장암, 대장암, 직장암, 위암, 신장암, 방광암, 난소암, 담관암 및 담낭암으로 이루어진 군으로부터 선택되는 암 진단용 조성물.
- 제1항에 따른 단백질분해효소 활성 측정용 나노입자를 유효성분으로 함유하는, 자가면역질환 진단용 조성물.
- 제13항에 있어서, 상기 자가면역질환은 골관절염 또는 류마티스 관절염인 것인 자가면역질환 진단용 조성물.
- 제1항에 따른 단백질분해효소 활성 측정용 나노입자 센서를 유효성분으로 함유하는, 세포 및 조직에서 발현되는 상기 단백질분해효소의 정량분석용 조성물.
- 제1항에 따른 단백질분해효소 활성 측정용 나노입자 센서를 유효성분으로 함유하는, 상기 단백질분해효소의 과다발현을 억제하는 약물 또는 약물의 효능의 스크리닝을 위한 조성물.
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| KR102129522B1 (ko) * | 2018-07-26 | 2020-07-02 | 한국과학기술연구원 | 암세포 특이적 항암 단백질-형광 복합체 및 이를 포함하는 암의 진단 및 영상화용 조성물 |
| KR102138256B1 (ko) * | 2018-09-13 | 2020-08-13 | 한국과학기술연구원 | 케스페이즈-1 활성 측정용 프로브, 이를 포함하는 염증성 질환 진단용 조성물 |
| US12173349B2 (en) | 2018-09-25 | 2024-12-24 | Massachusetts Institute Of Technology | Lung protease nanosensors and uses thereof |
| CN113365608A (zh) * | 2018-12-14 | 2021-09-07 | 诺维信公司 | 用于筛选酶或微生物的基于纳米粒子的方法 |
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| KR101135449B1 (ko) * | 2009-03-10 | 2012-04-13 | 한국과학기술연구원 | 헤파라나제 활성 측정용 이온 복합체 나노 입자 및 그 제조방법 |
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- 2008-08-29 KR KR1020080085497A patent/KR101103548B1/ko active Active
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- 2009-08-27 US US13/060,902 patent/US8841085B2/en active Active
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130230562A1 (en) * | 2010-06-23 | 2013-09-05 | Hyung-Jun Ahn | Fusion protein comprising small heat shock protein, cage protein formed thereby, and novel use thereof |
| US8916685B2 (en) * | 2010-06-23 | 2014-12-23 | Korea Institute Of Science And Technology | Fusion protein comprising small heat shock protein, cage protein formed thereby, and novel use thereof |
| US9265844B2 (en) | 2010-12-01 | 2016-02-23 | The Methodist Hospital System | Protease degradable polypeptides and uses thereof |
| US9439976B2 (en) | 2013-02-13 | 2016-09-13 | The Methodist Hospital System | Compositions and methods for using cathepsin E cleavable substrates |
| PL440782A1 (pl) * | 2022-03-29 | 2023-10-02 | Urteste Spółka Akcyjna | Związek - marker diagnostyczny raka jelita, sposób wykrywania aktywności enzymatycznej, sposób diagnozowania raka jelita, zestaw zawierający taki związek oraz zastosowania takiego związku i sposób leczenia raka jelita |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20100026477A (ko) | 2010-03-10 |
| US8841085B2 (en) | 2014-09-23 |
| WO2010024609A3 (ko) | 2010-06-17 |
| KR101103548B1 (ko) | 2012-01-09 |
| US20110213121A1 (en) | 2011-09-01 |
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