登诺苏马布通过抑制SPP1和增强细胞毒性T细胞来增强抗瘤免疫力
Zezhuo Su1, Maximus Chun Fai Yeung1, Shan Han1
1University of Hong Kong, Hong Kong, Hong Kong.
Cancer immunology research
|February 26, 2025
概括
丹诺苏马布 (denosumab) 是一种RANK配体抑制剂,通过降低骨质素 (SPP1) 和增强细胞毒性T细胞来增强抗瘤免疫力. 这一发现为各种癌症中SPP1水平升高的患者提供了新的治疗潜力.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 药理学 药理学是指药理学的学科.
背景情况:
- 德诺苏马布抑制RANK连接体,这对骨质细胞形成至关重要,并与骨疾病有关.
- 骨质素 (SPP1) 表达与巨细胞两极分化和预后有关,并且是RANK连接体激活的NF-κB的基因.
- 德诺苏马布除了骨再吸收之外的免疫调节作用正在研究中.
研究的目的:
- 调查德诺苏马布在增强抗瘤免疫力的潜力.
- 探索德诺苏马布对SPP1表达和细胞毒性T细胞活性的影响.
- 在泛癌分析中评估SPP1,CD8A和患者存活率之间的相关性.
主要方法:
- 在人类巨细胞骨瘤 (GCTB) 样本上进行单细胞RNA测序 (未经治疗和经过denosumab治疗).
- 在denosumab治疗前后对联的GCTB样本的分析.
- 在34种癌症类型中进行全癌症分析,以评估SPP1和CD8A相关性.
主要成果:
- 德诺苏马布治疗抑制了SPP1表达,并增加了GCTB中的活性细胞毒性T细胞丰度.
- 在配对的GCTB样本中验证denosumab的免疫调节作用.
- 观察到SPP1和CD8A之间的负相关性,CD8A:SPP1比率预测了14种癌症类型的整体存活率.
结论:
- 德诺苏马布通过降低SPP1和增强细胞毒性T细胞活性来改善抗瘤免疫力的临床益处.
- 这项研究突出了denosumab的新应用,特别是对于高SPP1水平的患者.
- 这些发现表明,登索马布是增强抗癌免疫反应的潜在治疗剂.
更多相关视频
13:19Quantifying Antibody-Dependent Cellular Cytotoxicity in a Tumor Spheroid Model: Application for Drug Discovery
Published on: April 26, 2024
2.5K
08:19Transfer of Manipulated Tumor-associated Neutrophils into Tumor-Bearing Mice to Study their Angiogenic Potential In Vivo
Published on: July 20, 2019
5.9K
相关概念视频
Tumor Immunotherapy
462
Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.
462
Cytotoxic T Cells-mediated Immune Response
826
Cytotoxic T cells are a vital component of the immune system. They have the remarkable ability to identify and target antigens on infected or abnormal cells. These antigens often originate from intracellular pathogens such as viruses or abnormal proteins cancer cells produce.
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...
826
Cancer Vaccines
325
Cancer treatment vaccines are a rapidly evolving field that offers a promising approach to immunotherapy. Unlike traditional vaccines that prevent diseases, cancer treatment vaccines are designed to treat existing cancers by stimulating the immune system to recognize and attack cancer cells.
Cancer vaccines come in two categories: preventive (prophylactic) and treatment (active). Preventive vaccines, such as the Human Papillomavirus (HPV) vaccine, protect against viruses that cause certain...
Cancer vaccines come in two categories: preventive (prophylactic) and treatment (active). Preventive vaccines, such as the Human Papillomavirus (HPV) vaccine, protect against viruses that cause certain...
325
Chemotherapy-Induced Nausea and Vomiting: Neurokinin-1 Receptor Antagonists
147
Neurokinin 1 (NK1) receptors are distributed across the GI tract, vagal afferents, and key CNS regions including the central vomiting center and chemoreceptor trigger zone (CTZ) Chemotherapy agents stimulate enterochromaffin cells in the gastrointestinal (GI) tract to release large amounts of substance P (SP). SP is a neuropeptide released by specific sensory nerves in response to many different stressors, including those in the GI mucosa affected by chemotherapy. SP binds and activates...
147
Abnormal Proliferation
4.4K
Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...
4.4K
Targeted Cancer Therapies
7.4K
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
There are several types of targeted therapies against...
7.4K
