KR20170121449A - Composition for preventing or treating autoimmune disease comprising Crif1 - Google Patents

Abstract

The present invention relates to a pharmaceutical composition for preventing or treating autoimmune disease containing Crif1 as an active ingredient. According of the present invention, Crif1 suppresses symptoms of rheumarthritis, onset rate, and differentiation of osteoclast, and effectively prevents and treats symptoms of multiple sclerosis and Sjogrens syndrome, thereby being used as a novel treatment agent for autoimmune disease.

Description

[0001] The present invention relates to a composition for preventing or treating an autoimmune disease comprising Crif1 as an active ingredient,

The present invention relates to a composition for preventing or treating autoimmune diseases containing Crif1.

The immune system plays a role in protecting the body from harmful foreign substances. These types of antigens include bacteria, viruses, toxins, cancer cells and blood and tissues from other people or animals. The immune system produces antibodies to destroy these harmful substances. When an autoimmune disorder occurs, the immune system fails to differentiate between organs and harmful antigens of its healthy body, destroying normal tissues. The disease that causes is autoimmune disease.

If an autoimmune abnormality occurs, a reaction occurs to the normal tissues of the body. The reason why the immune system can not distinguish between the organ of the body and the antigen is that a microorganism such as bacteria or a drug has a gene that is susceptible to autoimmune diseases The hypothesis is that it causes illness in people born.

Treatment of autoimmune reactions is aimed at regulating the autoimmune response and restoring the damaged immune function of the body, which varies according to the type of autoimmune disease. For example, blood transfusions should be performed if there is a problem with the blood, and exercise or other functional treatment should the bones, joints, or muscles develop. Drugs are also prescribed to control the immune system's response. Immunosuppressive medicines are known to be used as immunosuppressant drugs, including corticosteroids, prednisone, cyclosteramide, cyclophosphamide, azathioprine, , And tacrolimus.

However, since these therapeutic agents cause side effects in the body and their therapeutic effects are not excellent, it is necessary to develop a new therapeutic agent for autoimmune disease which is more safe and effective.

CRIF1, on the other hand, is associated with a large mitotibosomal subunit located in the mitochondria and located near the polypeptide exit tunnel. The deficiency of CRIF1 is known to cause a variety of defects, such as abnormal synthesis of mtDNA-encoding neonatal OXPHOS polypeptides and defective insertion into the mitochondrial inner membrane (Ryu MJ, et al. 2013 PLoSGenet 9: e1003356) The deficiency is associated with not only the failure of the assembly in the OXPHOS complexes I, III and IV but also the significantly lower levels of carbonyl cyanide m-chloro phenyl hydrazine (CCCP) - oxygen consumption of stimulated mitochondria and mitochondrial function due to high levels of mitochondrial ROS (Kim SJ, et al. 2012 CellMetab 16: 274-283).

Thus, CRIF1 is known to affect the function of mitochondria, but little is known about its relevance to autoimmune diseases.

Korean Patent Publication No. 2016-0022628

Therefore, the present invention has completed the present invention by confirming that Crif1 can effectively treat autoimmune diseases.

Accordingly, an object of the present invention is to provide a pharmaceutical composition for preventing or treating autoimmune diseases, which comprises Crif1 gene or Crif1 protein encoded from the gene as an active ingredient.

In order to achieve the above object, the present invention provides a pharmaceutical composition for preventing or treating an autoimmune disease comprising Crif1 gene or Crif1 protein encoded from the gene as an active ingredient.

In one embodiment of the present invention, the Crif1 gene may comprise the nucleotide sequence of SEQ ID NO: 1.

In one embodiment of the present invention, the Crif1 protein may comprise the amino acid sequence of SEQ ID NO: 2.

In one embodiment of the present invention, the autoimmune disease may be rheumatoid arthritis, multiple sclerosis or Sjogren's syndrome.

In one embodiment of the present invention, the Crif1 gene may be contained in an expression vector in which the Crif1 gene is operably linked.

The present invention relates to a pharmaceutical composition for preventing or treating an autoimmune disease comprising Crif1 as an active ingredient. Overexpression of the Crif1 gene according to the present invention can effectively treat autoimmune diseases such as rheumatoid arthritis, Sjogren's syndrome and multiple sclerosis.

FIG. 1 shows the results of analysis of arthritis index and arthritis incidence according to injection of Crif1 overexpression vector in an animal model of rheumatoid arthritis.
FIG. 2 shows the results of analysis of osteoclast differentiation according to Crif1 overexpression vector injection in an animal model of rheumatoid arthritis.
FIG. 3 shows the result of measurement of saliva fraction according to Crif1 over-expression vector in an animal model of Sjogren's syndrome.
FIG. 4 shows the results of analysis of disease symptoms and survival rates of Crif1 deficient and non-deficient animals in an animal model of multiple sclerosis.

The present invention is characterized by providing a pharmaceutical composition for the prevention or treatment of an autoimmune disease comprising the Crif1 gene or the Crif1 protein encoded by the gene as an active ingredient.

On the other hand, the Crif1 (CR6 Interacting Factor 1) is a protein that has been shown to increase expression in the process of carcinogenesis and is a protein that binds to CR6 (Gadd45gamma) protein. The mRNA of CRIF1 is not observed in peripheral blood mononuclear cells (PBMC) obtained from a normal human body. In contrast, mRNA of CRIF1 is expressed in adenovirus-induced fetal kidney cell line, prostate cancer cell line, cervical cancer cell line, fibrosarcoma cell line, It is known that the expression is increased in human blood cancer cell lines, HL-60, K-562, Jurkat and MOLT-4. However, there is not much research on CRIF1 yet, and particularly the use of therapeutic agents for autoimmune diseases has not been studied at all.

In this respect, the present invention firstly confirmed that CRIF1 can treat autoimmune diseases.

The autoimmune diseases to which the composition of the present invention can be treated include, but are not limited to, Rheumatoid Arthritis, Multiple Sclerosis or Sjogren's syndrome.

Also, the CRIF1 protein contained in the pharmaceutical composition of the present invention includes a protein having physiological activity substantially equivalent to the above protein. CRIF1 proteins with substantially equivalent physiological activity include the above proteins and their functional equivalents and functional derivatives. The above-mentioned " functional equivalent " refers to a variant of amino acid sequence in which some or all of the native protein amino acid is substituted, or a part of the amino acid is deleted or added, and has substantially the same physiological activity as the native type CRIF1 protein. The term "functional derivative" refers to a protein that has been modified to increase or decrease the physicochemical properties of the CRIF1 protein and has substantially the same physiological activity as the native CRIF1 protein.

Preferably, the CRIF1 protein is a protein having an amino acid sequence represented by SEQ ID NO: 2.

Also, the CRIF1 gene may include DNA or RNA encoding the CRIF1 protein, and preferably has the DNA sequence shown in SEQ ID NO: 1.

Here, the gene, that is, the polynucleotide may be introduced into an expression vector such as a plasmid or a viral vector by a known method, and then the expression vector may be expressed by infection or transduction by various methods known in the art Can be introduced into the target cell.

The plasmid expression vector is a method of delivering plasmid DNA directly to human cells using an approved FDA-approved gene transfer method that can be used in humans (Nabel, E. G., et al., Science, 249: 1285-1288, 1990). Unlike virus vectors, plasmid DNA has the advantage of being homogeneously purified. As the plasmid expression vector that can be used in the present invention, mammalian expression plasmids known in the art can be used. Examples include, but are not limited to pRK5 (European Patent No. 307,247), pSV16B (International Patent Publication No. 91/08291) and pVL1392 (PharMingen).

A plasmid expression vector comprising a polynucleotide according to the present invention may be prepared by a method known in the art such as, but not limited to, transient transfection, microinjection, transduction, , Cell fusion, calcium phosphate precipitation, liposome-mediated transfection, DEAE dextran-mediated transfection, polybrene-mediated transfection ), Electroporation, gene gun, and other known methods for introducing DNA into cells (Wu et al., J. Bio. Chem., 267 : 963-967, 1992; Wu and Wu, J. Bio. Chem., 263: 14621-14624, 1988).

The vector capable of expressing CRIF1 may be administered by a known method. For example, topically, parenterally, orally, nasally, intravenously, intramuscularly, subcutaneously, or by any other suitable means.

In the present invention, the treatment means, unless otherwise stated, reversing, alleviating, inhibiting or preventing the disease or disorder to which the term applies, or one or more symptoms of the disease or disorder And the term " treatment " as used herein refers to an act of treating when the treatment is defined as above. The treatment or therapies of autoimmune diseases in mammals thus may include one or more of the following:

(1) inhibiting the growth of autoimmune diseases, i.e., inhibiting its development,

(2) preventing the spread of autoimmune diseases, i.e., preventing metastasis,

(3) alleviating autoimmune diseases.

(4) preventing recurrence of autoimmune disease, and

(5) palliating symptoms of autoimmune disease

A composition for the prevention or treatment of an autoimmune disease according to the present invention may comprise a pharmaceutically effective amount of CRIF1 alone or may comprise one or more pharmaceutically acceptable carriers, excipients or diluents. A pharmaceutically effective amount as used herein refers to an amount sufficient to prevent, ameliorate, and treat symptoms of autoimmune diseases.

The pharmaceutically effective amount of CRIF1 according to the present invention is 0.5 to 100 mg / day / kg body weight, preferably 0.5 to 5 mg / day / kg body weight. However, the pharmaceutically effective amount may be appropriately changed depending on the degree of the autoimmune disease symptoms, the age, body weight, health condition, sex, administration route and treatment period of the patient.

The term " pharmaceutically acceptable " as used herein refers to a composition that is physiologically acceptable and does not normally cause an allergic reaction such as gastrointestinal disorder, dizziness, or the like when administered to humans. Examples of the carrier, excipient and diluent include lactose, dextrose, sucrose, sorbitol, mannitol, xylitol, erythritol, maltitol, starch, acacia rubber, alginate, gelatin, calcium phosphate, calcium silicate, cellulose, methylcellulose, Polyvinylpyrrolidone, water, methylhydroxybenzoate, propylhydroxybenzoate, talc, magnesium stearate and mineral oil. Further, it may further include a filler, an anticoagulant, a lubricant, a wetting agent, a flavoring agent, an emulsifying agent and an antiseptic agent.

In addition, the compositions of the present invention may be formulated using methods known in the art so as to provide rapid, sustained or delayed release of the active ingredient after administration to the mammal. The formulations may be in the form of powders, granules, tablets, emulsions, syrups, aerosols, soft or hard gelatine capsules, sterile injectable solutions, sterile powders.

In addition, the composition for preventing or treating autoimmune disease according to the present invention may be administered through various routes including oral, transdermal, subcutaneous, intravenous, or muscular, and the dose of the active ingredient may vary depending on the administration route, , Body weight and severity of the patient, and the composition for preventing or treating autoimmune disease according to the present invention may be selected according to various factors such as known compounds having an effect of preventing, ameliorating or treating symptoms of autoimmune diseases May be administered concurrently.

Hereinafter, the present invention will be described in detail by way of the following examples, but the present invention is not limited thereto for any reason.

< Example  1>

Crif1  Over-expressing recombinant vector production

The present inventors have made a vector overexpressing Crif1 to confirm whether Crif1 has a therapeutic effect on autoimmune diseases. Specifically, the Crif1 overexpression vector (pcDNA3.1 (+) - DYK mCrif1) purchased from TGenscript was used. The vector had a CMV promoter and the target ORF was Crif1 (Gadd45gipq) of Mus musculus mRNA was used and the stop codon was deleted to allow expression of the DYK tagging gene (DYKDDDK) of the C-terminal (Gene Bank Accession No. NM_183358.4).

< Example  2>

Crif1  Overdose Rheumatism  Analysis of treatment effect of arthritis

The present inventors produced a collagen-induced arthritis mouse model to examine whether Crif1 has a therapeutic effect on rheumatoid arthritis, and conducted the following experiment. Each mouse used in the experiment was weighed (weight) of 25 g.

<1-1> Preparation of experimental animals and evaluation of arthritis index

A 6-week-old male DBA / 1J mouse was used as a test animal. In order to prepare an animal model of arthritis, type II collagen (ClI) was dissolved in 0.1N acetic acid solution to a concentration of 4 mg / ml, and dialysis buffer , 50 mM Tris, 0.2 N NaCl), mixed with the same amount of complete Freund's adjuvant (CFA, Chondrex) containing M. tuberculosis, subcutaneously injected into the base of the tail of the mouse, and 100 μl (I.e., 100 占 퐂 / 100 占 퐇). Two weeks after this, the same CII was mixed with an equal amount of incomplete Freud's adjuvant (IFA, Chondrex) and 100 μl (ie 100 μg / 100 μl) was injected into one hind paw (foot pad). DBA1 / J mice were injected intradermally with type II collagen to induce arthritis. Then, on the 8th day after induction of arthritis, the overexpressed recombinant vector containing the Crif1 gene and the control MOCK vector were hydrodynamically injected using a hydrodynamic injection technique, injection and electroporation, respectively.

After the induction of arthritis, the degree of arthritis progression and degree of onset were analyzed for 8 weeks.

As shown in FIG. 1, when Crif1 overexpression was induced by overexpression of Crif1 overexpression vector, the arthritis index was significantly reduced compared with the control (MOCK vector injection group), and the incidence of arthritis was significantly reduced Respectively.

<1-2> Inhibitory effect of osteoclast differentiation

The following experiment was conducted to determine whether Crif1 could inhibit osteoclast differentiation. During the preparation of rheumatoid arthritis-induced mice in Example <1-1>, bone marrow cells were isolated by lethal each mouse 8 weeks after the first immunization. The resulting bone marrow cells were treated with M-CSF and RANKL (10 ng / ml, 30 ng / ml) to induce differentiation into osteoclasts. The degree of differentiation of mature osteoclasts was confirmed by TRAP staining.

As a result of the analysis, as shown in Fig. 2, the degree of differentiation into osteoclasts was inhibited in the Crif1 overexpressing group of the present invention as compared with the control group.

Therefore, the inventors of the present invention have found that there is an action of inhibiting osteoclast differentiation which causes Crip1's osteoarthritis.

< Example  3>

Crif1  Overdose Sogren  Analysis of treatment effect of syndrome

In order to analyze whether Crif1 is effective in treating Sjogren's syndrome, a 21-week-old NOD mouse was injected into the salivary flow rate of the over-expression recombinant vector of Crif1 prepared in the above example and the control MOCK vector once a week, Was measured.

As a result of analysis, it was confirmed that the decrease of salivary secretion, which is a symptom of Sjogren's syndrome, is inhibited by overexpression of Crif1 as shown in FIG. 3, so that Crif1 can be used as a therapeutic agent for improving and treating Sjogren's syndrome.

< Example  4>

Crif1  Analysis of treatment effect of multiple sclerosis over overexpression

Animal models lacking Crif1 in CD19 + cells were injected subcutaneously in mice with MOG peptide and equivalent amount of CFA in PBS, and pertussis toxin 200 ng / ml was intraperitoneally injected (primary immunization). The next day, pertussis toxin 200 ng / ml was intraperitoneally injected again. One week after the first immunization, the second immunization was performed in the same manner. The next day, an experimental animal model of experimental autoimmune encephalomyelitis (EAE) was induced by a second intraperitoneal injection of pertussis toxin 200 ng / ml. The degree of disease development and survival rate were evaluated after the first immunization.

As a result, as shown in FIG. 4, it was confirmed that the degree of development of multiple sclerosis was weakened in an animal model lacking Crif1 in CD19 as compared with the control group.

Recent studies have shown that autoantigens reacting to myelin can accelerate predatory cells present in the central nervous system to increase the amount of myelin antigens, and they can present antigens to T cells responding to aqueducts (T-cells), which have been shown to increase the ability of T-cells to promote the development of disease. It has also been reported that autoreactive CD19 + B220-plasma cells can promote EAE development. Thus, the worsening of the disease in the EAE model with CD19 deficient Crif1 demonstrates that Crif1 is an important factor in disease control.

The present invention has been described above with reference to preferred embodiments. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the disclosed embodiments should be considered in an illustrative rather than a restrictive sense. The scope of the present invention is defined by the appended claims rather than by the foregoing description, and all differences within the scope of equivalents thereof should be construed as being included in the present invention.

<110> Industry Academic Cooperation Foundation of Catholic University <120> Composition for preventing or treating autoimmune disease          comprising Crif1 <130> pn1604-130 <160> 2 <170> Kopatentin 2.0 <210> 1 <211> 669 <212> DNA <213> Crif1 cDNA sequence <400> 1 atggcggcgc tcgcaatgcg gagtggctat ctcctgcggc tctctgtggc tctgggtccc 60 aggtcccgca gctaccgtgc gcccccgccc ccgcgccgcc gtcccgggcc ccactcgcca 120 gcccggaga acctgctgac cccgcgatgg cagctaacgc cccgctatgt ggccaagcag 180 ttcggacgac atggcgccat ctccggggtg cccccggcct ccctgtggcc caccccagag 240 cagctgcgcg agttggaggc cgaggagcaa gaatggtacc cgagcttagc gaccatgcaa 300 gagtcgctgc gcttgcagca gcaggccttg gaggcaaggc gccaagccag ggagcagcgt 360 atcgcagagt gcatggccaa gatgccacaa atgattgaaa actggcgaaa gcagaagcga 420 gaacgctggg agaaaattca ggctgacaag gagcggaggg cccggttaca ggctgaggcc 480 caggaacgcc tgggctacca cgtggaccca aggagtgctc gcttccagga actattacag 540 gacctagaca agcagcaacg aaagcgccta aaggaagaaa gacaacgaca gaagaaggag 600 gcacgaattg ctgctatggc ctctgctgaa gcccaggact cagcagtgtc tggtgaaccc 660 agctcctga 669 <210> 2 <211> 222 <212> PRT <213> Crif1 aminoacid sequence <400> 2 Met Ala Ala Leu Ala Met Arg Ser Gly Tyr Leu Leu Arg Leu Ser Val   1 5 10 15 Ala Leu Gly Pro Arg Arg Ser Ser Tyr Arg Ala Pro Pro Pro Pro Arg              20 25 30 Arg Arg Pro Gly Pro His Ser Pro Asp Pro Glu Asn Leu Leu Thr Pro          35 40 45 Arg Trp Gln Leu Thr Pro Arg Tyr Val Ala Lys Gln Phe Gly Arg His      50 55 60 Gly Ala Ile Ser Gly Val Pro Pro Ala Ser Leu Trp Pro Thr Pro Glu  65 70 75 80 Gln Leu Arg Glu Leu Glu Ala Glu Glu Gln Glu Trp Tyr Pro Ser Leu                  85 90 95 Ala Thr Met Gln Glu Ser Leu Arg Leu Gln Gln Gln Ala Leu Glu Ala             100 105 110 Arg Arg Gln Ala Arg Glu Gln Arg Ile Ala Glu Cys Met Ala Lys Met         115 120 125 Pro Gln Met Ile Glu Asn Trp Arg Lys Gln Lys Arg Glu Arg Trp Glu     130 135 140 Lys Ile Gln Ala Asp Lys Glu Arg Arg Ala Arg Leu Gln Ala Glu Ala 145 150 155 160 Gln Glu Arg Leu Gly Tyr His Val Asp Pro Arg Ser Ser Ala Arg Phe Gln                 165 170 175 Glu Leu Leu Gln Asp Leu Asp Lys Gln Gln Arg Lys Arg Leu Lys Glu             180 185 190 Glu Arg Gln Arg Gln Lys Lys Glu Ala Arg Ile Ala Ala Met Ala Ser         195 200 205 Ala Glu Ala Gln Asp Ser Ala Val Ser Gly Glu Pro Ser Ser     210 215 220

Claims (5)

A pharmaceutical composition for preventing or treating an autoimmune disease comprising the Crif1 gene or the Crif1 protein encoded from the gene as an active ingredient. The method according to claim 1,
Wherein the Crif1 gene comprises the nucleotide sequence of SEQ ID NO: 1. 2. A pharmaceutical composition for preventing or treating autoimmune disease, The method according to claim 1,
Wherein the Crif1 protein comprises the amino acid sequence of SEQ ID NO: 2. The method according to claim 1,
Wherein said autoimmune disease is rheumatoid arthritis, multiple sclerosis or Sjogren's syndrome. 2. The pharmaceutical composition according to claim 1, wherein said autoimmune disease is rheumatoid arthritis, multiple sclerosis or Sjogren's syndrome. The method according to claim 1,
Wherein the Crif1 gene is contained in an expression vector in which the Crif1 gene is operably linked.

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