CN110772513B - Medicine for treating leukemia - Google Patents

Medicine for treating leukemia Download PDF

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CN110772513B
CN110772513B CN201910664791.0A CN201910664791A CN110772513B CN 110772513 B CN110772513 B CN 110772513B CN 201910664791 A CN201910664791 A CN 201910664791A CN 110772513 B CN110772513 B CN 110772513B
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苗玉迪
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Shaanxi Provincial Peoples Hospital
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/435Heterocyclic 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
    • A61K31/44Non condensed pyridines; Hydrogenated derivatives thereof
    • A61K31/4427Non condensed pyridines; Hydrogenated derivatives thereof containing further heterocyclic ring systems
    • A61K31/4439Non condensed pyridines; Hydrogenated derivatives thereof containing further heterocyclic ring systems containing a five-membered ring with nitrogen as a ring hetero atom, e.g. omeprazole
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K38/00Medicinal preparations containing peptides
    • A61K38/16Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P35/00Antineoplastic agents
    • A61P35/02Antineoplastic agents specific for leukemia
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    • C07KPEPTIDES
    • C07K14/00Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
    • C07K14/001Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof by chemical synthesis

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Abstract

The invention relates to a medicament for treating leukemia, which particularly comprises a compound and polypeptide, can improve the membrane permeability and the cell killing effect of leukemia cells, has low toxicity to normal cells, can effectively inhibit the cell proliferation of the leukemia cells and induce the apoptosis of tumor cells, and has better application prospect.

Description

Medicine for treating leukemia
Technical Field
The invention relates to a medicine capable of specifically inhibiting leukemia, and belongs to the field of biological pharmacy.
Background
Leukemia (leukemia) is a malignant tumor disease that occurs in hematopoietic organs, with proliferation and dysplasia of leukocytes and their precursor cells in the blood and bone marrow. Due to abnormal differentiation of hematopoietic stem cells, leukemia cells abnormally excessively proliferate in bone marrow and other hematopoietic tissues, accumulate and infiltrate other tissues and organs, and inhibit normal hematopoiesis, and clinically present with symptoms of hemorrhage, anemia, infection and infiltration of various organs.
According to relevant statistics, leukemia accounts for about 3% of the incidence rate of tumors, and is better for children and young people, and male patients are more female than female patients. The incidence of leukemia is highest in countries around the world, both in europe and north america, with a mortality rate of 3.2-7.4 per 10 million people. Asia and south America have low morbidity with mortality rates of 2.8-4.5 per 10 million of the population and increasing at a rate of at least 3-4 million per year. The mortality rates of malignant tumors in the age groups of China are 6 th (male) and 8 th (female), respectively, and the mortality rates of children and children under 35 years old are 1 st.
In recent years, with the rapid development of economy in China, the environmental pollution is increasingly serious, tumors become the first diseases of China threatening the health and life of people, particularly the incidence rate of malignant tumors is continuously increased, and the condition of leukemia is not optimistic.
Leukemia can be classified into acute and chronic types according to the degree of maturation and the natural course of the leukemia cells. Acute leukemia is a malignant clonal hematological disease of hematopoietic stem and progenitor cell origin. Clinically, infection, hemorrhage, anemia and extramedullary tissue and organ infiltration are the main manifestations, and the disease progresses rapidly. The natural course of disease is only weeks to months. They can be generally classified into Acute Myelogenous Leukemia (AML) and Acute Lymphoblastic Leukemia (ALL) according to their classification into leukemia cell series.
Chronic leukemia is characterized by hyperproliferation of functional differentiated mature cells, and chronic leukemia is therefore a disease due to poor signaling or uncontrolled cell proliferation, rather than to a failure of maturation. Chronic leukemia is usually chronic myelogenous leukemia (C ML) and Chronic Lymphocytic Leukemia (CLL).
The proliferation and infiltration of leukocytes are the specific pathological changes of leukemia, manifesting as lymphadenectasis, hepatosplenomegaly, and sternal tenderness. It can also be indicated for other infiltrations, such as pleural effusion, peritoneal or pericardial effusion, and central nervous system infiltration. Leukemia causes a decrease in the number and functional defects of neutrophils, which easily causes various bacterial infections, among which inflammation of the oral cavity, the intestine, the lung and the like is the most common. Thrombocytopenia, fibrinolysis, disseminated intravascular coagulation and plasma protein-bound polysaccharide increase, blood coagulation inhibition, and bleeding of patients, which are commonly seen in skin mucosa, hematopoietic tissue, spleen and stomach. The normal differentiated cells of the part produced by leukemia inhibit the normal hematopoietic cells, destroy the bone marrow environment for the growth of red blood cells, cause hemolysis and cause anemia. Leukocytosis can also lead to small vessel occlusion and hemorrhagic embolism, causing paralysis, coma, and even death of the patient.
Chemotherapy is still the main treatment for leukemia, and aims to eliminate leukemia cell clone and rebuild normal hematopoietic function of bone marrow. Acute leukemia treatment can be divided into two phases, induction remission and post-remission treatment (consolidation strengthening and maintenance treatment). The induction remission stage is a combined composition scheme of several different drugs with different mechanisms of action, and the dosage is to achieve the degree of mild inhibition of bone marrow. The medicine is taken for 1-2 courses of treatment to achieve complete relief and restore the hematopoietic function. But at the moment, the patient is not cured, the treatment enters the stage 2, namely post-remission treatment, the post-remission treatment generally begins two weeks after the complete remission is obtained for the first time, the chemotherapy scheme selects a plurality of new schemes besides the original scheme used for inducing the remission, wherein the new schemes comprise two large-dose strengthening schemes which are inserted in the new schemes, and the schemes are alternately and alternately carried out to carry out the strengthening and strengthening treatment.
Radiation therapy is often used as part of a pretreatment regimen in hematopoietic stem cell transplantation, but because the leukemia cells themselves are perfused in the human circulatory system, hematopoietic organs and infiltrated tissues, radiation therapy has certain limitations in leukemia therapy, typically used to locally irradiate significantly enlarged liver and spleen or lymph nodes to relieve symptoms, or used as a pretreatment prior to bone marrow transplantation to reduce rejection.
Bone Marrow Transplantation (BMT) is the treatment of choice currently prevalent in the treatment of leukemia, as bone marrow transplantation is a real method of treating leukemia. The superiority of bone marrow transplantation compared with common chemotherapy is fully reflected in acute leukemia, and the treatment can obviously improve the disease-free survival rate of patients with acute leukemia. According to massive case analysis of Fred Hutchinson cancer research center and IBMTR, the disease-free survival rate of AML can reach about 50% in 3 years after AML receives ALLo-BMT in first remission; while the 3-year disease-free survival rate of patients with concurrent chemotherapy is only 18-27%. BMT efficacy is affected by a number of factors, mainly BMT timing: the efficacy of the first remission of BMT is superior to the second remission period. Brotint et AL (1988) compared the first remission and second remission BMT results in AL patients and found that after the first remission BMT, the 5-year recurrence rate of the patients was 21% + -11% and the 5-year disease-free survival rate was 46% + -9%; the 5-year relapse rate and survival rate of patients after the second remission BMT were 56% and 22%, respectively. Similar results were obtained for the IBMTR and Seattle data. Therefore, patients with acute leukemia are preferably fed BMT in the first complete remission. The nature of the disease itself: the relationship between BMT efficacy and typing is not clear, and AML efficacy is generally considered superior to ALL for ALL patients. Age and general condition of the patient: since the older the age, the poorer the organ function, and the greater the possibility of various complications, particularly GVHD, occurring after BMT, it is prudent to perform allogeneic bone marrow transplantation in patients over 45 years old, and generally not to perform allogeneic bone marrow transplantation over 50 years old.
In recent years, targeted therapy of leukemia cells has become a development trend of leukemia therapy, and targeted killing of leukemia cells by using monoclonal antibodies, cytokines or genes and the like has a good application prospect in clinic and can become another cure means of leukemia.
In the patent field, the application of the compound in the field of treating leukemia is also wide. For example, CN102961374B discloses an application of a compound shown in formula I in preparation of a STAT3 inhibitor and a STAT3 inhibitor, the compound shown in formula I can obviously inhibit proliferation and survival of various tumor cells such as acute and chronic leukemia, multiple myeloma, lymphoma, lung cancer, prostate cancer, cervical cancer and the like, inhibit a STAT3 signal channel of the tumor cells, activate relevant factors for inducing apoptosis of the tumor cells, thereby inducing apoptosis of the tumor cells and achieving the effect of treating tumor diseases.
CN103751172B discloses the application of dixanthone compounds in the preparation of anti-leukemia drugs, and also includes a method for extracting 5 dixanthone compounds from hypericum japonicum medicinal materials. Leukemia cell activity experiments are carried out on the 5 natural dixanthone compounds, and results show that the 5 dixanthone compounds have inhibitory activity on leukemia cells K562, HL-60 and THP-1, and have better inhibitory activity on K562 cells. The 5 dixanthone compounds exert antitumor activity through BCL2 protein family, and according to the result of a leukemia solid tumor nude mouse model, the growth of tumors can be inhibited, and the life cycle of the tumor model can be prolonged.
CN100441222C discloses the application of compound PS-341 in the preparation of medicine for treating M2 type acute saccharic leukemia with t (8; 21) chromosome translocation. Solves the problems that most patients can obtain remission, but relapse quickly and gradually generate drug resistance to cause treatment failure and the drugs have large toxic and side effects because the existing AML M2 treatment mainly treats the chemotherapy of large dose of cytarabine combined with daunorubicin or desmethoxyrubicin.
In recent years, there have been studies showing that low concentrations of VEGF in normal humans are mainly associated with angiogenesis, and that malignant hematological diseases also have angiogenesis. Under the condition that VEGF in tumor cells is over-expressed, the concentration of VEGF in local tumor tissues is abnormally increased, the cardiovascular production is further promoted, nutrients are increased for the tumor cells, the growth and proliferation of the tumor cells are further promoted, and the method is also greatly related to the invasion and metastasis of the tumor cells. By comparing the serum VEGF expression level before the leukemia patient is treated with the serum VEGF expression level of a reference group, the VEGF expression level in the serum of the leukemia patient is far higher than that of a healthy population, and the VEGF expression level in the serum of the leukemia patient after the leukemia patient is subjected to standardized treatment is far lower than that before the leukemia patient is treated. VEGF has the main biological function of increasing vascular permeability, is a main induction factor for promoting cardiovascular generation, can stimulate endothelial cells to cause hyperproliferation of endothelial cells so as to promote neoangiogenesis, and deposits a large amount of fibrinogen in an extravascular matrix under the condition of increasing vascular permeability, so that nutrients are further provided for vascular production and tumor cell growth, and necessary conditions are provided for further invasion and metastasis of tumors. Therefore, the VEGF inhibitor has better application value in treating leukemia patients by using the VEGF inhibitor.
However, in these applications, the toxic effect of the compound is strong, and the compound is also lovely and lovely killed to human body while treating leukemia, so the inventor improves on the basis of the above, and provides a novel pharmaceutical composition for treating leukemia, which can reduce the toxicity of the compound and improve the inhibition effect.
Disclosure of Invention
There is still room for improvement in therapeutic effects of the drugs studied earlier by the inventors.
The invention aims to provide a compound and preparation and application thereof. The compound provided by the invention has a structure shown in formula 1, can effectively inhibit the growth of K562 leukemia cells, and has a good application prospect.
Figure BSA0000186348180000041
In another aspect of the present invention, there is provided a polypeptide capable of increasing the permeability of leukemia cell membrane, such as SEQ ID NO: 1 is shown. The polypeptide can obviously improve the permeability of K562 leukocyte cell membranes, improve cell leakage and inhibit cell growth.
Permeation peptide SEQ ID NO: 1:
Figure BSA0000186348180000042
in another aspect of the present invention, there is provided a composition comprising SEQ ID NO: 1 in combination with a compound of formula 1, a synergistically enhanced cell killing effect is achieved.
The invention also provides an antitumor drug composition, which is a common preparation in pharmacy prepared by taking the compound, the polypeptide and the pharmaceutically acceptable salt thereof as active ingredients and adding pharmaceutically acceptable auxiliary materials or auxiliary ingredients.
The compounds and polypeptides of the invention may be formulated for administration either alone or in combination with one or more acceptable carriers. Such as solvents, diluents, and the like. Can be administered in oral dosage forms, such as tablet, capsule, dispersible powder, granule, etc.; can also be administered by injection, such as lyophilized powder for injection. The various dosage forms of the pharmaceutical compositions of the present invention may be prepared according to methods well known in the pharmaceutical art. These pharmaceutical preparations may contain, in combination with a carrier, for example
Figure BSA0000186348180000051
Weight active ingredient, more usually about
Figure BSA0000186348180000052
Active ingredient in between. The dosage of the compounds and polypeptides of the present invention may be varied beyond this range depending on the severity of the disease or the dosage form.
The leukemia refers to acute myelogenous leukemia, chronic myelogenous leukemia, acute lymphocytic leukemia, chronic lymphocytic leukemia, acute nonlymphocytic leukemia, chronic leukemia, plasma cell leukemia, chronic myelogenous leukemia, eosinophilic leukemia, basophilic leukemia, megakaryocytic leukemia, undifferentiated acute leukemia or histiophilic leukemia, and low-proliferative leukemia type drug-resistant leukemia.
Advantageous effects
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
the invention discloses the synergistic effect of the compound and the polypeptide for the first time, improves the membrane permeability and the cell killing effect of leukemia cells, has low toxicity to normal cells, can effectively inhibit the cell proliferation of the leukemia cells and induce the apoptosis of tumor cells, and has better application prospect.
Obviously, many modifications, substitutions, and variations are possible in light of the above teachings of the invention, without departing from the basic technical spirit of the invention, as defined by the following claims.
The present invention will be described in further detail with reference to the following examples. This should not be understood as limiting the scope of the above-described subject matter of the present invention to the following examples. All the technologies realized based on the above contents of the present invention belong to the scope of the present invention.
Description of the drawings:
FIG. 1: cell culture time versus cell density.
Detailed Description
EXAMPLE 1 culture of cells and preparation of polypeptide
Tumor cell lines: the K562 leukemia cells (preserved in Shanxi province national hospital blood disease research room) are recovered from liquid nitrogen, and then the K562 leukemia cells are placed in RPMI-1640 culture solution containing 10% inactivated fresh calf serum, and the volume fraction is 5% CO at 37 DEG C2Culturing under saturated humidity condition, keeping cell activity > 97%, and collecting K562 cell (1) in exponential growth phaseX105Pieces/ml) are divided into a control group and an experimental group for later use.
The nucleotide sequence of SEQ ID NO: 1, is obtained by a synthesis method and is completed by Beijing Yi Qiao Shenzhou science and technology Co.
Example 2 Lactate Deaminase (LDH) Release assay for cell Membrane permeability assay
At 5X103Density of individual cells/well K562 cells were added to 96-well plates for culture. The polypeptide (SEQ ID NO: 1 at pH 7.5) was incubated with the cells for 2 hours. LDH concentration (LDHsample) was determined using a chromogenic LDH kit. Triton-X100 (0.2% final concentration) was added to some wells to prepare cell lysates. LDH concentration in cell lysates was defined as LDHtotal. The release of LDH (ldhreease) was calculated according to the following formula:
LDHrelease=100%X(LDHsample/LDHtotal)
cell viability assays were performed on the same cells after all supernatants were removed for LDH release assays. Cell activity values and LDH release values are listed in table 1. As can be seen from table 1, LDH release increased with increasing polypeptide concentration after polypeptide treatment of cells. The release of LDH is generally used as a measure of the permeability of cell membranes and results show that polypeptides increase cell permeability and thus lead to a decrease in cell activity.
TABLE 1 relationship between cellular Activity and LDH Release
Polypeptide (mu M) 0 10 20 40 80
Cell Activity (%) 100 80.3 31.2 21.5 11.3
LDH Release (%) 2.56 32.5 51.4 63.8 76.9
The above results indicate that LDH release is directly related to a decrease in cellular activity after the polypeptide has acted on the cells. Normal cells release approximately 1-5% of LDH to the outside. The release of LDH increases with increasing polypeptide concentration after the polypeptide acts on the cell. Since LDH release is commonly used to measure cell membrane permeability, the results show that SEQ ID NO: 1 results in increased cell permeability and decreased cellular activity.
Example 3 cell proliferation inhibition assay
Cell proliferation inhibition assay: k562 cells in logarithmic growth phase were added at 1 × 105/mL to 24-well plates at 1 μ L per well with 80 μ M peptide group, 80 μ M peptide +20 μ M compound drug group of formula 1, PBS blank control group, counted after 12, 24, 36, 48h, viable cells counted using trypan blue exclusion experiment, the experiment was repeated 3 times, averaged, and the growth curve was plotted, as shown in fig. 1.
As can be seen from FIG. 1, the polypeptide and the compound of formula 1 taken alone have similar inhibitory effect on cells and have certain effect, and the polypeptide and the compound of formula 1 taken together can obviously inhibit the cellsCell proliferation and cell apoptosis promotion, cell survival rate is less than 1% at 48h, and cell density is reduced to 0.001 x105And (4) the compound shows excellent inhibition effect per ml.
Example 4 cytotoxicity assay
293T cells, 16HBE cells and WI-38[ WI38 ]]Culturing human embryo lung fibroblast cells by conventional culture method, and collecting cells with concentration of 1X105And (4) respectively. 5X103The density of each cell/well will be 293T cells, 16HBE cells and WI-38[ WI38]Human embryonic lung fibroblasts were added to a 96-well plate and the polypeptide + compound of formula 1 mixture was added and incubated with the cells for 4 hours, with no drug in PBS as a control. The cell density detection shows that the cell density of the control group is basically the same as that of the drug-added group, which shows that the composition provided by the invention has no obvious killing effect on normal cells and has better application prospect.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Accordingly, it is intended that all such modifications and variations as fall within the true spirit of this invention be included within the scope thereof.
Figure ISA0000186348200000011
Figure ISA0000186348200000021

Claims (8)

1, SEQ ID NO: 1 and application of compound of formula 1 in preparation of medicament for treating leukemia
Figure DEST_PATH_IMAGE002
Formula 1.
2. Use according to claim 1, characterized in that: wherein the dosage ratio of the medicines is as follows: 80 μ M of the cell membrane-penetrating peptide was used in combination with 20 μ M of the compound of formula 1.
3. Use according to claim 2, characterized in that: other medicines for inhibiting the migration, invasion and proliferation of the leukemia cells are also added.
4. Use according to any one of claims 2 to 3, characterized in that: comprises pharmaceutically acceptable auxiliary materials which are compounded to prepare the medicinal composition.
5. The use of claim 3, wherein the medicament comprises a platinum antineoplastic agent.
6. The use according to claim 5, wherein the antineoplastic drug is cisplatin or carboplatin.
7. A cell membrane-permeable peptide, the sequence of which is as shown in SEQ ID NO: 1 is shown.
8. Use of the cell membrane-penetrating peptide of claim 7 for the preparation of a medicament for the treatment of leukemia.
CN201910664791.0A 2019-07-15 2019-07-15 Medicine for treating leukemia Expired - Fee Related CN110772513B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013123071A1 (en) * 2012-02-13 2013-08-22 Cleave Biosciences, Inc. Methods and compositions for jamm protease inhibition
CN104606189A (en) * 2015-01-08 2015-05-13 苏州大学 Application of compound to preparation of mTOR inhibitor
CN109865125A (en) * 2019-03-05 2019-06-11 陕西省人民医院 It adjusts peptide and mansonone E and treats improved leukemia medicament and application thereof in preparation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013123071A1 (en) * 2012-02-13 2013-08-22 Cleave Biosciences, Inc. Methods and compositions for jamm protease inhibition
CN104606189A (en) * 2015-01-08 2015-05-13 苏州大学 Application of compound to preparation of mTOR inhibitor
CN109865125A (en) * 2019-03-05 2019-06-11 陕西省人民医院 It adjusts peptide and mansonone E and treats improved leukemia medicament and application thereof in preparation

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Title
Inhibition of cancer cell proliferation by designed peptide amphiphiles;Lorenzo Aulisa等;《Acta Biomaterialia》;20081127;第5卷(第3期);第842-853页 *
The Anti-Cancer Peptide, PNC-27, Induces Tumor Cell Necrosis of a Poorly Differentiated Non-Solid Tissue Human Leukemia Cell Line that Depends on Expression of HDM-2 in the Plasma Membrane of these Cells;Katlin Davitt等;《Annals of Clinical & Laboratory Science》;20141231;第44卷(第3期);第241-248页 *
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