CN115364224B - Use of GLUT1 inhibitors as mitochondrial autophagy inducers - Google Patents

Use of GLUT1 inhibitors as mitochondrial autophagy inducers Download PDF

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CN115364224B
CN115364224B CN202211022336.9A CN202211022336A CN115364224B CN 115364224 B CN115364224 B CN 115364224B CN 202211022336 A CN202211022336 A CN 202211022336A CN 115364224 B CN115364224 B CN 115364224B
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刘栋
吴荣海
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Hangzhou Tianjijishi Biotechnology Co ltd
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Abstract

The application discloses application of a GLUT1 inhibitor as a mitochondrial autophagy inducer. The application provides a novel application of GLUT1 inhibitor as a mitochondrial autophagy inducer, and in a preferred embodiment of the invention, BAY-876 and STF-31 can be used as the mitochondrial autophagy inducer to have outstanding selective induced injury mitochondrial autophagy.

Description

Use of GLUT1 inhibitors as mitochondrial autophagy inducers
Technical Field
The invention relates to the field of chemical medicaments, in particular to application of a GLUT1 inhibitor as a mitochondrial autophagy inducer.
Background
Glucose transporter 1 (GLUT 1) inhibitors are commonly used to inhibit the expression level of glucose transporter 1 and thus the proliferation of cancer cells, such as the proliferation of lung cancer cells and breast cancer cells.
Mitochondria act as energy metabolism centers in cells, regulating cell death and inflammation. The cell controls the quality of mitochondria through mitochondrial autophagy, ensures the normal physiological process of the cell and reduces the inflammation level. Mitochondrial autophagy is an important physiological process in cells and is closely related to the occurrence and development of various diseases. Such as neurodegenerative diseases, inflammation, autoimmune diseases, infectious diseases, etc. The mechanism of these diseases is still unclear and there is no effective treatment in the prior art. The present inventors have found in the study that, in the progress of diseases related to mitochondrial autophagy, damage accumulation occurs due to mitochondrial dysfunction, which further aggravates mitochondrial autophagy dysfunction, so that cells cannot suppress inflammation or other symptoms by clearing damaged mitochondria, thereby suppressing disease progression. At this time, induction of mitochondrial autophagy can effectively help cells restart the mitochondrial quality control process, thereby clearing damaged mitochondria, relieving disease symptoms and hopefully curing such refractory diseases.
However, there is no successful development of a mitochondrial autophagy inducer suitable for clinical treatment. Thus, there is a need in the art to develop new mitochondrial autophagy inducers.
Disclosure of Invention
The invention aims to provide application of a GLUT1 inhibitor.
It is another object of the present invention to provide a method of inducing mitochondrial autophagy.
It is another object of the present invention to provide a method for preventing and/or treating diseases associated with mitochondrial autophagy.
To solve the above technical problem, the first aspect of the present invention provides the use of a GLUT1 inhibitor for the preparation of a medicament or pharmaceutical composition for one or more uses selected from the group consisting of:
(i) Inducing mitochondrial autophagy (as a mitochondrial autophagy inducer); and
(ii) Preventing and/or treating diseases related to mitochondrial autophagy.
In some preferred embodiments, the inducing mitochondrial autophagy is selectively inducing damaged mitochondrial autophagy, more preferably selectively inducing damaged mitochondrial autophagy caused by CCCP.
In some preferred embodiments, the GLUT1 inhibitor is BAY-876 or STF-31.
In some preferred embodiments, the selectively inducing damaged mitochondrial autophagy comprises:
selectively induces the degradation of damaged mitochondrial marking protein Tim23, but does not affect the degradation of endoplasmic reticulum marking protein Calnexin.
In some preferred embodiments, the selectively inducing damaged mitochondrial autophagy comprises:
the fluorescence of the keima protein localized in the injured mitochondria is selectively enhanced, but the fluorescence intensity of the keima protein in the intact mitochondria is not affected.
In some preferred embodiments, the disease associated with mitochondrial autophagy is selected from at least one of ischemia reperfusion injury, neurodegenerative disease, kidney injury associated disease, heart disease and sepsis.
In some preferred embodiments, the neurodegenerative disease is selected from at least one of Alzheimer's Disease (AD), huntington's Disease (HD), parkinson's Disease (PD), amyotrophic Lateral Sclerosis (ALS), hypoxic ischemic brain injury, MELAS-type Mitochondrial Encephalomyopathy (MELAS), and feverfew-related diseases.
In some preferred embodiments, the kidney injury-related disorder is selected from at least one of acute kidney injury, diabetic nephropathy, and chronic kidney failure.
In some preferred embodiments, the heart disease is selected from at least one of cardiomyopathy, diabetic cardiomyopathy, and cardiovascular disease.
In some preferred embodiments, the ischemia reperfusion injury is selected from at least one of renal ischemia reperfusion injury, hepatic ischemia reperfusion injury, and cardiac ischemia reperfusion injury or brain ischemia reperfusion injury.
In a second aspect of the invention, there is provided a pharmaceutical composition comprising BAY-876 and STF-31, and a pharmaceutically acceptable carrier or excipient.
In a third aspect of the present invention, there is provided a method of inducing autophagy in mitochondria, the method comprising the steps of:
administering to the subject a mitochondrial autophagy inducer which is a GLUT1 inhibitor or a pharmaceutical composition according to the second aspect of the invention.
In some preferred embodiments, the inducing mitochondrial autophagy is selectively inducing damaged mitochondrial autophagy.
In some preferred embodiments, the GLUT1 inhibitor is BAY-876 or STF-31.
In a fourth aspect of the present invention, there is provided a method for preventing and/or treating a disease associated with mitochondrial autophagy, the method comprising the steps of:
administering to the subject a therapeutically effective amount of a GLUT1 inhibitor or a pharmaceutical composition according to the second aspect of the invention.
Compared with the prior art, the invention has at least the following advantages:
(1) The invention provides a new application of GLUT1 inhibitor as a mitochondrial autophagy inducer, and in a preferred embodiment of the invention, BAY-876 and STF-31 can be used as the mitochondrial autophagy inducer to have outstanding capacity of selectively inducing damaged mitochondrial autophagy;
(2) The invention also provides methods of treating difficult conditions associated with mitochondrial autophagy, including neurodegenerative diseases, kidney injury related diseases, heart diseases, sepsis, and the like, using GLUT1 inhibitors, preferably BAY-876 and STF-31.
(3) The invention also provides pharmaceutical compositions containing BAY-876 and STF-31, useful for selectively inducing damaged mitochondrial autophagy.
It is understood that within the scope of the present invention, the above-described technical features of the present invention and technical features specifically described below (e.g., in the examples) may be combined with each other to constitute new or preferred technical solutions. And are limited to a space, and are not described in detail herein.
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One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings.
FIG. 1 is a graph showing the results of Tim23 and Calnexin levels in cells containing damaged mitochondria and undamaged mitochondria under treatment with BAY-876 according to an embodiment of the present invention;
FIG. 2 is a statistical thermogram of fluorescence of cells containing damaged mitochondria and undamaged mitochondria in BAY-876 and STF-31 treatments, respectively, according to an embodiment of the present invention.
Detailed Description
Existing developments have demonstrated that mitochondrial autophagy is associated with the pathological course of a variety of problematic diseases. Glucose transporter 1 (GLUTs) is the major vector mediating glucose transport in mammalian cells, with the subtype GLUT1 being most widely distributed among glucose transporters in vivo. The existing research shows that the expression level of GLUT1 is related to various cancers to different degrees, so that the GLUT1 inhibitor is used for resisting cancers in the prior art. Through extensive and intensive studies, the present inventors have unexpectedly found that GLUT1 inhibitors (e.g., BAY-876 or STF-31) can be used as a mitochondrial autophagy inducer to induce mitochondrial autophagy or repair the mitochondrial autophagy pathway, and thus can be used for preventing and/or treating diseases associated with mitochondrial autophagy.
GLUT1 inhibitors
In the present invention, GLUT1 inhibitors refer to compounds, polypeptides and proteins that can inhibit the expression of glucose transporter 1. Commercial GLUT1 inhibitors are available commercially, and it will be appreciated by those skilled in the art that GLUT1 inhibitors as used herein are not limited to the compounds WZB117, DRB18, KL-11743, bay-876 and STF-31 disclosed herein.
In a preferred embodiment of the invention, the GLUT1 inhibitor is compound BAY-876 or STF-31.
In the invention, the structural formula of the compound BAY-876 is shown as formula I, wherein the name is as follows: n4- (1- (4-cyanobenzyl) -5-methyl-3- (trifluoromethyl) -1H-pyrazol-4-yl) -7-fluoroquinoline-2, 4-dicarboxamide, CAS number: 1799753-84-6.BAY-876 may be used as GLUT1 inhibitor.
In the invention, the structural formula of the compound STF-31 is shown as a formula II, wherein the name is as follows: 4- [ 4-tert-butylphenyl ] sulfonyl ] amino ] methyl ] -N-3-pyridylbenzamide having the CAS number: 724741-75-7.STF-31 may be used as a GLUT1 inhibitor.
In the invention, the structural formula of the compound WZB117 is shown in a formula III, wherein the name is as follows: 3-fluoro-1, 2-phenylenebis (3-hydroxybenzoate) with CAS number: 1223397-11-2.WZB117 may be used as GLUT1 inhibitor.
In the invention, the structural formula of the compound DRB18 is shown as a formula IV. DRB18 may be used as GLUT1 inhibitor.
In the invention, the structural formula of the compound KL-11743 is shown as a formula V, wherein the name is as follows: acetamide, 2- [3- [ 6-ethoxy-4- [4- (1H-pyrazolyl-4-yl) phenyl ] amino ] -2-quinazolinyl ] phenoxy ] -N- (1-methylethyl) -, CAS number: 1369452-53-8.KL-11743 can be used as GLUT1 inhibitors.
Mitochondrial autophagy inducer
In the present invention, a mitochondrial autophagy inducer refers to a compound that can selectively degrade damaged mitochondria (e.g., CCCP damaged mitochondria) in an autophagy pathway. The mitochondrial autophagy pathway comprises the processes of recognizing damaged mitochondria, activating mitochondrial autophagy receptors, wrapping the damaged mitochondria by autophagosomes, fusing the autophagosomes with lysosomes, degrading the mitochondria by the lysosomes and the like. Mitochondrial autophagy inducers may function in multiple processes.
Pharmaceutical composition
In the present invention, the pharmaceutical composition comprises an active ingredient, and a pharmaceutically acceptable carrier or excipient; wherein the active ingredient comprises BAY-876 and/or STF-31.
In a preferred embodiment of the invention, the active ingredients include BAY-876 and STF-31.
In the present invention, an "active ingredient" refers to a compound that is administered to a subject to treat, prevent or alleviate one or more symptoms of a condition, disorder or disease, alone or in combination with one or more pharmaceutically acceptable excipients. As used herein, an "active ingredient" and an "active agent" may be a pharmaceutically acceptable salt, solvate, prodrug, stereoisomer, isotopic variant, or tautomer of a compound described herein.
In the present invention, "pharmaceutically acceptable carriers and excipients" refer to pharmaceutically acceptable materials, compositions or vehicles, such as liquid or solid fillers, diluents, solvents or encapsulating materials. In one embodiment, each component is "pharmaceutically acceptable" in the sense that it is compatible with the other components of the pharmaceutical formulation and is suitable for contact with tissues or organs of humans and animals without undue toxicity, irritation, allergic response, immunogenicity, or other problem or complication, commensurate with a reasonable benefit/risk ratio.
The pharmaceutical compositions of the present invention may be formulated with pharmaceutically acceptable carriers and/or vehicles as described above, ultimately providing several forms, both unit dosage forms and multi-dose forms. Non-limiting examples of formulations include, but are not limited to, oral formulations such as powders, granules, tablets, capsules, suspensions, emulsions, syrups and aerosols, topical formulations such as ointments and creams, suppositories and sterile injectable solutions, preferably oral formulations or sterile injectable solutions.
Use of the same
The GLUT1 inhibitors of the present invention may be used in the preparation of a medicament or pharmaceutical composition for one or more uses selected from the group consisting of:
(i) Inducing mitochondrial autophagy;
(ii) Preventing and/or treating diseases related to mitochondrial autophagy.
In a preferred embodiment of the invention, the induction of mitochondrial autophagy is selective induction of damaged mitochondrial autophagy, more preferably selective induction of damaged mitochondrial autophagy caused by CCCP.
In the present invention, the term "inducing mitochondrial autophagy" refers to inducing targeted phagocytosis or destruction of mitochondria by cells.
In the present invention, the term "selectively induce damaged mitochondrial autophagy" refers to an autophagy manner that selectively isolates and degrades damaged or incomplete mitochondria without affecting or only minimally affecting intact mitochondria.
In a preferred embodiment of the invention, the GLUT1 inhibitor is BAY-876 or STF-31. Compared with other GLUT1 inhibitors, the two inhibitors have outstanding capability of selectively inducing damaged mitochondrial autophagy, namely, the damaged mitochondrial autophagy can be selectively induced.
In a preferred embodiment of the invention, BAY-876 or a pharmaceutical composition comprising the same, STF-31 or a pharmaceutical composition comprising the same, BAY-876 and STF-31, the pharmaceutical compositions comprising BAY-876 and STF-31 each having an outstanding ability to selectively induce damaged mitochondrial autophagy.
"Selectivity" can be verified by various means conventional in the art. In a preferred embodiment of the invention, selectively inducing damaged mitochondrial autophagy comprises: the fluorescence of the keima protein localized in the injured mitochondria is selectively enhanced, but the fluorescence intensity of the keima protein in the intact mitochondria is not affected. In a preferred further embodiment of the invention, selectively inducing damaged mitochondrial autophagy comprises: selectively induces the degradation of damaged mitochondrial marking protein Tim23, but does not affect the degradation of endoplasmic reticulum marking protein Calnexin.
Indication of disease
In the present invention, GLUT1 inhibitors are useful for preventing and/or treating diseases associated with mitochondrial autophagy. Such as neurodegenerative diseases, diseases associated with kidney injury, heart diseases, sepsis, etc.
Neurodegenerative diseases such as, but not limited to, alzheimer's Disease (AD), huntington's Disease (HD), parkinson's Disease (PD), amyotrophic Lateral Sclerosis (ALS), hypoxic ischemic brain injury, MELAS type Mitochondrial Encephalomyopathy (MELAS), and febrile convulsion-related diseases.
The kidney injury-related diseases are not limited, and include acute kidney injury, diabetic nephropathy, chronic renal failure, and the like.
Heart diseases such as, without limitation, cardiomyopathy, diabetic cardiomyopathy, cardiovascular disease, and the like.
Therapeutic method
In the present invention, a method for treating the above indications comprises the steps of: a therapeutically effective amount of a GLUT1 inhibitor, preferably BAY-876, STF-31, or a pharmaceutical composition of the invention, is administered to a subject.
In the present invention, the term "subject" is defined herein to include animals, such as mammals, including, but not limited to, primates (e.g., humans), cows, sheep, goats, horses, dogs, cats, rabbits, rats, mice, and the like. In a particular embodiment, the subject is a human.
In order to accommodate the characteristics of the subject and the need for treatment, the manner of administering the "GLUT1 inhibitor" or "pharmaceutical composition" to the subject is not limited in the present invention, and alternative administration modes include: enteral administration (oral, sublingual, rectal), parenteral injection (intravenous, subcutaneous, intramuscular, intraperitoneal), pulmonary absorption, or absorption via the conjunctiva, nasopharynx, oral, rectal, urinary tract, or bladder, in one embodiment, the subject is administered enterally.
As used herein, a "therapeutically effective amount" of a compound means an amount of the compound that is sufficient to provide a therapeutic effect in the treatment or management of a disease or disorder, or to delay or minimize one or more symptoms associated with the disease or disorder. A therapeutically effective amount of a compound refers to the amount of a therapeutic agent that, when used alone or in combination with other therapies, provides a therapeutic effect in the treatment or management of a disease or disorder. The term "therapeutically effective amount" may include an amount that improves overall therapy, reduces or avoids symptoms or causes of a disease or disorder, or enhances the therapeutic efficacy of another therapeutic agent.
In the present invention, a safe and effective amount of the "GLUT1 inhibitor" or the "pharmaceutical composition" is administered to a subject, wherein the safe and effective amount is 10 to 2000mg/kg, preferably 10 to 100 mg/kg; for example: 10mg/kg, 20mg/kg, 30mg/kg, 40mg/kg, 50mg/kg, 100mg/kg, the safe and effective amounts being the content of the active ingredients. In some embodiments, the safe and effective amount is 50-200mg/kg (mouse), or 500-1000mg/kg (human).
In the present invention, the "GLUT1 inhibitor" or "pharmaceutical composition" is administered 1 to 3 times daily, e.g., 1 time in the morning or evening, 2 times each in the morning or 3 times each in the morning, in the evening; the administration is continued for not less than 1 day, preferably not less than 3 days, preferably not less than 5 days, preferably not less than 7 days, most preferably not less than 7 days.
The present invention will be further described with reference to specific embodiments in order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent. It is to be understood that these examples are illustrative of the present invention and are not intended to limit the scope of the present invention. The experimental methods, in which specific conditions are not noted in the following examples, are generally conducted under conventional conditions or under conditions recommended by the manufacturer. Percentages and parts are weight percentages and parts unless otherwise indicated. The experimental materials and reagents used in the following examples were obtained from commercial sources unless otherwise specified.
Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs, it is to be noted that the terms used herein are used merely to describe specific embodiments and are not intended to limit the exemplary embodiments of this application.
Example 1, immunohybridization experiments verify that HEK293T cells (ex ECACC) that specifically induce selective mitochondrial autophagy were seeded at a density of 2x 105/ml in 6-well plates at 2ml per well. 6 wells per cell. After 24 hours, BAY-876 or STF-31 was added at a final concentration of 5. Mu.M without adding and adding 3. Mu.M CCCP (carboyl cyanide 3-chlorophenylhydrozone, causing mitochondrial damage), respectively. After 12 hours, samples were collected in 250. Mu.l of 2XSDS loading buffer. Heated at 100℃for 10 minutes.
Immune hybridization: 10 μl of each sample was loaded and run for 90V2h; transfer film 300mA for 1h.5% skim milk was blocked for 1h at room temperature, antibody (Tim 23 antibody from Proteintech, #11123-1-AP; tubulin antibody from Hangzhou Hua Biotechnology Co., ltd., # M1305-2; calnexin antibody from Cell Signaling Technology, # 2433S) was incubated overnight at 4℃at a dilution ratio (Tubulin antibody 1:5000, the remainder 1:1000), and PBST (phosphate buffer+0.1% Tween 20) was washed 3 times for 10 minutes each time. Secondary antibodies (coat anti-Mouse IgG (h+l) secondary antibodies were purchased from Thermo Fisher Scientific, #31430; coat anti-Mouse IgG (h+l) secondary antibodies were purchased from Thermo Fisher Scientific, # 31460) at 1: the dilution ratio 20000 was incubated for 1h at room temperature and the pbst washes were performed 3 times for 10 minutes each. ECL color development.
As shown in FIG. 1, the immunohybridization (western blot) test shows that BAY-876 and STF-31 do not cause degradation of mitochondrial marker protein Tim23 in HEK293T cells and do not affect degradation of endoplasmic reticulum marker protein Calnexin. In the case of mitochondrial damage caused by the addition of CCCP, BAY-876 and STF-31 resulted in degradation of the mitochondrial marking protein Tim23, but also did not affect degradation of the endoplasmic reticulum marking protein Calnexin. This suggests that BAY-876 and STF-31 specifically induce the occurrence of selective mitochondrial autophagy without affecting the occurrence of other autophagies.
Example 2, keima fluorescence assay to verify that BAY-876 induces selective mitochondrial autophagy
Human embryonic kidney transformed cells HEK293Tmtkeima cells (cell lines which indicate the onset of mitochondrial autophagy, stable expression of mtkeima are self-constructs1.5.105 times/ml of biological preservation information CCTCC NO: C201940 2019.03.07) is planted in a 96-hole black ELISA plate, BAY-876 or STF-31 with the final concentration of 5 mu M is added, and 3 repeats are arranged; incubated at 37℃with 5% CO 2. Under the same conditions, the other group of cells is cultured in a 96-well black ELISA plate at a rate of 1.5 x 105 cells/ml, and 100 μl per well of HEK293Tmtkeima cells; after 24 hours, 3. Mu.M CCCP was added to induce mitochondrial breakage, and after 1 hour, BAY-876 or STF-31 was added at a final concentration of 5. Mu.M, and 3 replicates were set; at 37 ℃,5% CO 2 Culture conditions were photographed 12 hours later with biotek cell 5. The two groups take bright field as focusing channel, 4 pictures are taken from each hole, and the images are processed by using instrument software.
As shown in FIG. 2, the HEK293Tmtkeima system of human embryonic kidney transformed cells was treated with 3uM CCCP and then with BAY-876 or STF-31, which significantly increased keima signal compared to BAY-876 or STF-31 alone. And no significant increase in keima signal was seen after BAY-876 alone. It was demonstrated that BAY-876 did not cause mitochondrial damage and selectively induced mitochondrial autophagy in damaged mitochondria.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples of carrying out the invention and that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims (1)

  1. Use of a glut1 inhibitor, for non-therapeutically inducing mitochondrial autophagy in vitro; the GLUT1 inhibitor is BAY-876;
    the induction of mitochondrial autophagy is selective induction of damaged mitochondrial autophagy caused by CCCP.
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