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A kind of tumor drug targeting carrier and its application

A technology of tumor drugs and anti-tumor drugs, which is applied in the field of anti-tumor drugs and can solve problems such as toxicity, decreased immune function, and lack of specificity

Active Publication Date: 2018-07-06
LANZHOU INST OF VETERINARY SCI CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chemotherapy is still one of the main means of treating malignant tumors. Traditional chemotherapy mainly uses chemical drugs, such as the antineoplastic drug doxorubicin (DOX), to inhibit the proliferation of tumor cells and kill tumor cells. However, most chemotherapeutic drugs are not specific, and will damage normal tissues while inhibiting tumor tissues. Therefore, they have toxic and side effects that cannot be ignored, such as decreased immune function, bone marrow suppression, heart and liver toxicity, etc.

Method used

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  • A kind of tumor drug targeting carrier and its application
  • A kind of tumor drug targeting carrier and its application
  • A kind of tumor drug targeting carrier and its application

Examples

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Embodiment Construction

[0021] The present invention is illustrated below in conjunction with the examples.

[0022] 1. Chemical coupling of FMDV-VLP and DOX.

[0023] Dissolve 0.4 mg carbodiimide and 0.6 mg N-hydroxysuccinimide in each 0.5 ml 2-(N-morpholine)ethanesulfonic acid solution (0.2 mol / L MES, 1 mol / L NaCl, pH 6.0), sequentially added to 1ml of FMDVLP solution with a concentration of 2mg / ml, activated at room temperature for 15 minutes, then added 30 µl of DOX with a concentration of 5 mg / ml, adjusted to pH=8.0, and coupled for 15 minutes at room temperature , and then transfer the mixture into a dialysis bag of 8000 MWCO for dialysis, overnight at 4°C and change the dialysate 2-3 times to remove uncoupled substances to obtain the target product. The dialysis buffer used was: 40mM Tris-HCl, 500mM NaCl, 10mM CaCl 2 , pH=8.0.

[0024] 2. Determination of properties of FMDV-VLP-DOX conjugates.

[0025] 12% SDS-PAGE and 0.8% Agarose gel electrophoresis were used to detect whether the conjugat...

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Abstract

The invention discloses a tumor drug targeting vector, a coupling method of the vector and an anti-tumor drug and the formed anti-tumor drug. The tumor drug targeting vector is foot and mouth disease virus-like particles. The chemical coupling method of the tumor drug targeting vector and the anti-tumor chemical drug includes the steps that a tumor drug vector is activated through chemical coupling reagents of carbodiimide (EDC) and N-hydroxysuccinimide (NHS), and the rumor drug vector is then coupled with other anti-tumor drugs. The anti-tumor drug can be specifically combined with an integrin receptor over expressed by the surfaces of tumor cells, targeting modification does not need to be conducted on the surfaces, and the targeting treatment effect of anti-cancer drugs can be improved.

Description

technical field [0001] The invention relates to an anti-tumor drug targeting carrier, the coupling of the carrier and the anti-tumor drug, and the formed anti-tumor drug. Background technique [0002] Malignant tumors have become one of the important diseases that threaten human health today. There are more than 10 million new cancer patients in the world every year. Cancer control has become the focus of global health strategies. Chemotherapy is still one of the main means of treating malignant tumors. Traditional chemotherapy mainly uses chemical drugs, such as the antineoplastic drug doxorubicin (DOX), to inhibit the proliferation of tumor cells and kill tumor cells. However, most chemotherapeutic drugs are not specific, and will damage normal tissues while inhibiting tumor tissues. Therefore, they have toxic and side effects that cannot be ignored, such as decreased immune function, bone marrow suppression, heart and liver toxicity, etc. [0003] In order to overcome th...

Claims

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Application Information

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IPC IPC(8): A61K47/54A61K31/704A61K47/46A61P35/00
Inventor 孙世琪郭慧琛闫丹董虎魏衍全刘湘涛
Owner LANZHOU INST OF VETERINARY SCI CHINESE ACAD OF AGRI SCI
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