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Application of flavonoid derivative CPU-008 in preparation of anti-lymphoma medicine

A CPU-008, lymphoma technology, applied in the field of anti-tumor drugs, can solve the problems of patients with toxic side effects, easy metastasis of lymphoma cells, affecting treatment compliance and efficacy, etc.

Inactive Publication Date: 2021-08-13
CHINA PHARM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because lymph is distributed throughout the body of animals and participates in various physiological reactions, lymph cancer cells are more likely to metastasize and are difficult to treat
At present, radiotherapy and chemotherapy are the main treatment methods, but the side effects caused by chemotherapy have caused great pain to patients, and even affected treatment compliance and efficacy.

Method used

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  • Application of flavonoid derivative CPU-008 in preparation of anti-lymphoma medicine
  • Application of flavonoid derivative CPU-008 in preparation of anti-lymphoma medicine
  • Application of flavonoid derivative CPU-008 in preparation of anti-lymphoma medicine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Example 1 Inhibition of CPU-008 on TCL cell line Hut-102 cell viability

[0042] Cell Viability Assay

[0043] CCK-8 is a highly sensitive kit based on water-soluble tetrazolium salt (WST-8), which is commonly used to detect cell proliferation. The principle of action is that WST-8 can be reduced by dehydrogenase in mitochondria to generate orange-yellow formazan dye in the presence of electron coupling reagents. Using a microplate reader to measure its OD value at a wavelength of 450nm, the number of living cells can be dynamically quantified through colorimetry, thereby indirectly reflecting the number of living cells.

[0044] The human TCL cell line Hut-102 in the logarithmic growth phase was cultured in a 96-well microtiter plate according to a certain cell density. After culturing in the incubator for 12 and 24 hours, 20 μL of CCK-8 solution was added to each well. After further incubation for 1 h, the absorbance was detected at a wavelength of 450 nM using a m...

Embodiment 2

[0049] Example 2 CPU-008 induces apoptosis of AML and TCL cells

[0050] Apoptosis detection

[0051]Annexin V / PI double staining was used to detect cell apoptosis. In normal cells, phosphatidylserine (Phosphatidylserine, PS) is distributed inside the phospholipid bilayer of the cell membrane. During apoptosis, PS is exposed to bind with Annexin V. Cells in the early stage of apoptosis will only have the phenomenon of PS eversion, and PI dyes cannot penetrate the cell membranes of cells in the early stage of apoptosis and normal cells, so the cells in the early stage of apoptosis are in the lower right area (Annexin V+, PI-) in flow cytometry; In late apoptotic cells, DNA is stained because PI can enter the nucleus through the cell membrane, which is located in the upper right part (Annexin V+, PI+). Collect K562 and KU-812 cells treated with different concentrations of drugs, centrifuge to remove the supernatant, wash once with PBS, resuspend the cells in 100 μL Binding bu...

Embodiment 3

[0054] Example 3 Effect of CPU-008 on Mitochondrial Membrane Potential of Human TCL Cell Line Hut-102 Cells

[0055] Determination of mitochondrial membrane potential

[0056] JC-1, also known as CBIC2(3) or 5,5′,6,6′-tetrachloro-1,1′,3,3′-tetraethylbenzimidazole carbocyanine iodide, is a cationic lipid It is an ideal fluorescent probe for indicating mitochondrial membrane potential (△Ψm). When △Ψm is high, JC-1 gathers in the mitochondrial matrix to form a polymer, which can produce red fluorescence; when △Ψm is low, JC-1 cannot gather in the mitochondrial matrix, at this time JC-1 is Monomer, can produce green fluorescence. In this way, it is very convenient to detect the change of mitochondrial membrane potential through the transition of fluorescent color. The relative ratio of red-green fluorescence is commonly used to measure the ratio of mitochondrial depolarization.

[0057] Hut-102 in the logarithmic growth phase was cultured in a 6-well cell culture plate accordi...

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Abstract

The invention relates to an application of a flavonoid derivative CPU-008 (7-{4-[bis-(2-hydroxy-ethyl)-amino]-butoxy}-5-hydroxy-8-methoxy-2-phenyl-benzopyran-4-ketone) in preparation of an anti-lymphoma medicine. The CPU-008 can inhibit the growth activity of lymphoma cells, and can cause the apoptosis of the lymphoma cells by reducing the mitochondrial membrane potential of the lymphoma cells.

Description

technical field [0001] The invention belongs to the field of antineoplastic drugs, and in particular relates to the application of a flavonoid derivative CPU-008 in the preparation of antilymphoma drugs. Background technique [0002] Lymphoma is a malignant tumor originating from the lymphatic hematopoietic system. It is mainly manifested as painless lymphadenopathy, hepatosplenomegaly, and various tissues and organs of the whole body can be involved, accompanied by systemic symptoms such as fever, night sweats, weight loss, and itching. Malignant lymphoma is a large group of tumors with considerable heterogeneity. Although it is more likely to occur in lymph nodes, due to the distribution characteristics of the lymphatic system, lymphoma is a systemic disease that can invade almost any tissue and organ in the body. [0003] Lymphoma is highly heterogeneous, and the treatment effects vary greatly. Lymphomas of different pathological types and stages have great differences in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K31/352A61P35/00
CPCA61K31/352A61P35/00
Inventor 郭青龙惠慧李慧杨林周煜新魏立彬张小博徐澍吴焘高源
Owner CHINA PHARM UNIV
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