与癌症相关的纤维细胞作为诱,抑制乳腺癌中NK细胞抗癌细胞毒性
Aviad Ben-Shmuel1, Yael Gruper1, Coral Halperin1
1Weizmann Institute of Science, Rehovot, Israel.
Cancer discovery
|March 7, 2025
概括
与癌症相关的纤维细胞 (CAF) 抑制了乳腺癌中自然杀手 (NK) 细胞的抗瘤免疫力. 这种相互作用涉及CAF被NK细胞溶解,减少NK细胞的激活,促进瘤脱离,影响患者的治疗结果.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 细胞生物学 细胞生物学
背景情况:
- 癌症相关纤维细胞 (CAF) 是瘤微环境的关键调节者,影响免疫反应.
- 虽然CAF调节各种免疫细胞,但它们与乳腺癌中的自然杀手 (NK) 细胞的相互作用仍然不太清楚.
研究的目的:
- 研究CAFs影响乳腺癌NK细胞活性的机制.
- 探索CAF-NK细胞相互作用在三阴性乳腺癌中的临床相关性.
主要方法:
- 利用乳腺癌和ex vivo共培系统的小鼠模型.
- 分析了NK细胞和CAF之间的联结体受体参与.
- 检查NK细胞细胞毒性,激活受体表达和患者瘤样本中的CAF存在.
主要成果:
- 发现CAFs可以抑制NK细胞对癌细胞的细胞毒性.
- 该机制涉及连接体受体参与,导致CAF溶解和减少NK细胞激活受体表达.
- 在三阴性乳腺癌患者中,CAF丰富区域的NK细胞丰富和CAF上增加的NK结合配体与较差的疾病结果相关.
结论:
- 在乳腺癌中,CAFs使用一种免疫抑制诱机制来逃避NK细胞监测.
- 这种相互作用对开发新的基于免疫的治疗策略和癌的生物标志物有重大影响.
相关概念视频
Cells of the Innate Immune Response
1.2K
The innate immune response is an immediate and non-specific response against pathogens, acting swiftly to prevent the spread of infections. The primary cells involved in this response are phagocytes and natural killer (NK) cells.
Phagocytes
Phagocytes police the peripheral tissues by removing cellular debris and responding to the invasion of foreign substances or pathogens. Many phagocytes attack and remove microorganisms even before lymphocytes detect them. The human body has two general...
Phagocytes
Phagocytes police the peripheral tissues by removing cellular debris and responding to the invasion of foreign substances or pathogens. Many phagocytes attack and remove microorganisms even before lymphocytes detect them. The human body has two general...
1.2K
Cytotoxic T Cells-mediated Immune Response
825
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...
825
Immune Surveillance by NK Cells and Phagocytes
1.1K
Immune surveillance is an integral part of the innate immune system, involving the continuous monitoring of peripheral tissues to detect and respond to pathogens, infected cells, or cancerous cells. This surveillance is conducted primarily by natural killer (NK) cells and phagocytes, which employ distinct but complementary mechanisms to identify and eliminate threats.
Natural Killer Cells: The Fast Responders
NK cells are large granular lymphocytes found in the blood and lymphatic system. These...
Natural Killer Cells: The Fast Responders
NK cells are large granular lymphocytes found in the blood and lymphatic system. These...
1.1K
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


