Establishment of A Patient-derived Xenotransplantation Animal Model for Small Cell Lung Cancer and Drug Resistance Model.
10.3779/j.issn.1009-3419.2019.01.03
- VernacularTitle:人源性的小细胞肺癌异种移植动物模型及耐药模型的建立
- Author:
Yaru ZHU
1
;
Weimei HUANG
2
;
Yuanzhou WU
1
;
Longfei JIA
1
;
Yaling LI
1
;
Rui CHEN
2
;
Linlang GUO
2
;
Qunqing CHEN
1
Author Information
1. Department of Cardiothoracic Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China.
2. Department of Pathology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China.
- Publication Type:Journal Article
- Keywords:
Animal model;
B-NSGTM mice;
Drug resistance;
Patient-derived xenotransplantation;
Small cell lung cancer
- MeSH:
Animals;
Antineoplastic Combined Chemotherapy Protocols;
pharmacology;
Cisplatin;
administration & dosage;
Disease Models, Animal;
Drug Resistance, Neoplasm;
Etoposide;
administration & dosage;
Female;
Humans;
Interleukin Receptor Common gamma Subunit;
deficiency;
genetics;
Lung Neoplasms;
drug therapy;
metabolism;
pathology;
Mice, Inbred BALB C;
Mice, Inbred NOD;
Mice, Knockout;
Mice, SCID;
Small Cell Lung Carcinoma;
drug therapy;
metabolism;
pathology;
Transplantation, Heterologous;
methods;
Xenograft Model Antitumor Assays
- From:
Chinese Journal of Lung Cancer
2019;22(1):6-14
- CountryChina
- Language:Chinese
-
Abstract:
BACKGROUND:Small cell lung cancer (SCLC) is characterized by poor differentiation, high malignancy and rapid growth fast, short double time, early and extensive metastatic malignancy. In clinical, chemotherapy is the main treatment method, while resistance to multiple chemotherapy drugs in six to nine months has been a major clinical challenge in SCLC treatment. Therefore, It has important clinical value to building SCLC aninimal model which is similar to patients with SCLC. Animal model of xenotransplantation (PDX) from the patients with small cell lung cancer can well retain the characteristics of primary tumor and is an ideal preclinical animal model. The study is aimed to establish SCLC PDX animal model and induce the chemoresistance model to help to study the mechanism of chemoresistance and individual treatment.
METHODS:Fresh surgical excision or puncture specimens from SCLC patients were transplanted into B-NSGTM mice subcutaneous tissues with severe immunodeficiency in one hour after operation the B-NSGTM mice subcutaneous in 1 hour, and inject chemotherapy drugs intraperitoneally after its tumor growed to 400 mm³ with EP which is cisplatin 8 mg/kg eight days and etoposide 5 mg/kg every two days until 8 cycles. Measure the tumor volum and mice weights regularly, then re-engrafted the largest tumor and continue chemotherapy.
RESULTS:Nine cases were conducted for B-NSG mice modeling. Three of nine cases could be engrafted to new B-NSG mice at least two generation. The SCLC PDX animal models have been established successfully. After adopting chemotherapy drugs, the chemoresistance PDX models have been established. High homogeneity was found between xenograft tumor and patient's tumor in histopathology, immunohistochemical phenotype (Syn, CD56, Ki67).
CONCLUSIONS:The SCLC PDX animal model and the chemoresistance PDX animal model have been successfully constructed, the success rate is 33%, which provides a platform for the clinical research, seeking for biological markers and choosing individual treatment methods of SCLC.
