Use of cis-platinum in treatment on high-level granulocyte-like myeloid derived suppressor cell (G-MDSC) bladder cancer
A high-level technology for bladder cancer, applied in the field of medicine, can solve the problem of strong side effects of cisplatin, and achieve the effect of enhancing the inhibitory effect and promoting the tumor killing function.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0068] Example 1 Analysis of the level of immunosuppressive cells derived from myeloid bone marrow in bladder cancer tissue
[0069] 1) Increased G-MDSC level in bladder cancer focus tissue
[0070] Firstly, relevant test data were collected, and it was found that CD8+ T cells in the peripheral blood of patients with bladder cancer increased compared with healthy people (such as figure 1 Shown in A); then the immune cells in the bladder cancer focus tissue and paracancerous bladder tissue were obtained by primary isolation, and CD3+CD8+ T cells in the cancer focus tissue were detected by flow cytometry (both flow cytometry antibodies were from Biolegend Company) Significantly less than the adjacent bladder tissue (such as figure 1 B), and CD11b+CD33+CD15+CD14-G-MDSC significantly increased compared with adjacent bladder tissue (such as figure 1 C, shown in 1D). The proportion of G-MDSC in bladder cancer focus tissue was significantly negatively correlated with CD8+ T cells ...
Embodiment 2
[0071] Example 2 In vitro experiments confirm the function of cisplatin in killing bladder cancer cells and G-MDCS
[0072] 1) Cisplatin inhibits proliferation and promotes apoptosis of bladder cancer cell T24
[0073] Cisplatin is a platinum-containing chemical (such as figure 2 shown in A). Concentration gradient 0, 0.1, 1, 10 μ M cisplatin treated T24 cells for 24 hours, the Cell Counting Kit-8 kit was used to detect the number of cells and compared with the control group. T24 cells were treated with 10 μM cisplatin for 0, 12, 24, 48, and 72 hours, and the number of viable cells was detected with the Cell Counting Kit-8 kit (T24 cells were from Shanghai South Model Animal Center, and the Cell Counting Kit-8 kit was from Yeasen Company) . It is found that within a certain range, the increase of cisplatin concentration and the prolongation of treatment time can effectively inhibit the proliferation of bladder cancer cells T24 (such as figure 2 B, shown in 2C). Hochest ...
Embodiment 3
[0076] Example 3 In vitro experiments confirm that cisplatin can indirectly enhance the immune function of CD8+ T cells by killing G-MDSC
[0077] First, we treated CD8+ T cells isolated from peripheral blood with 10 μM cisplatin (CD8+ T cell separation magnetic beads were purchased from Miltenyi). After 48 hours, we used flow cytometry to analyze the proportion of CD8+ T cells. After CD8+ T cells did not change significantly (such as Figure 4 shown in A). CD33+ cells were isolated from PMN by magnetic bead sorting. Cytokines IL-6 and GM-CSF were added to train for 7 days, and then 10 μM cisplatin was added to treat for 48 hours. G-MDSC: CD8+ T cells were 1:100, 1: 10. After 1:1 co-culture for 48 hours, the proliferation of CFSE-labeled CD8+ T cells was analyzed by flow cytometry (CFSE reagents were from Biolegend). The inhibitory effect on cells is the strongest, and at the same time, cisplatin can indirectly promote the proliferation of CD8+ T cells by reducing G-MDSC (su...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com