Tumor-educated B cells promote renal cancer metastasis via inducing the IL-1β/HIF-2α/Notch1 signals.
Saiyang LiChi HuangGuanghui HuJunjie MaYonghui ChenJin ZhangYiran HuangJunhua ZhengWei XueYunfei XuWei ZhaiPublished in: Cell death & disease (2020)
While B cells in the tumor microenvironment (TME) might play important roles in cancer progression, their impacts on the renal cell carcinoma (RCC) metastasis remained unclear, which drew our attention to further explore. We found that RCC tissues could recruit more B cells than the surrounding normal renal tissues from human clinical RCC samples. Wound healing assay, transwell assay and 3D invasion assays demonstrated that recruited B cells, also known as tumor-educated B cells (TEB), could significantly increase the RCC cell migration and invasion. In addition, in vivo data from xenograft RCC mouse model also confirmed that TEB could enhance RCC cell invasive and metastatic capability. Mechanism dissection revealed that TEB activated IL-1β/HIF-2α signals in RCC cells that could induce the downstream Notch1 signaling pathway. The above results demonstrated the key roles of TEB within renal cancer associated tumor microenvironment were metastasis-promotor and might help us to develop the potential therapies via targeting these newly identified IL-1β/HIF-2α/Notch1 signals in RCC progression.
Keyphrases
- renal cell carcinoma
- endothelial cells
- single cell
- signaling pathway
- mouse model
- high throughput
- cell proliferation
- papillary thyroid
- induced apoptosis
- gene expression
- squamous cell carcinoma
- small cell lung cancer
- cell therapy
- working memory
- stem cells
- deep learning
- machine learning
- cell cycle arrest
- cancer therapy
- cell migration
- bone marrow
- climate change
- big data
- pi k akt
- electronic health record
- cell death
- lymph node metastasis