选择性血液癌症根除与保存的血液形成
Simon Garaudé1,2, Romina Marone1,2, Rosalba Lepore1,2,3
1Department of Biomedicine, Basel University Hospital and University of Basel, Basel, Switzerland.
Nature
|May 22, 2024
概括
一种针对CD45的新型抗体-药物结合剂可选择性地消除白血病细胞. 这种方法与工程干细胞相结合,为造血系统的替代提供了一种通用策略,从而保持健康的细胞功能.
科学领域:
- 血液学
- 免疫疗法
- 癌症学
背景情况:
- 血造干细胞移植 (HSCT) 是治疗血液恶性瘤的方法,但依赖于非特异性化疗.
- 目前的抗原特异性疗法受到目标可用性和高开发成本的限制.
- 在不损害移植细胞的情况下消除恶性细胞仍然是一个挑战.
研究的目的:
- 开发一种有针对性的疗法, 以消除整个造血系统, 包括恶性细胞.
- 创建一种选择性白血病细胞根除的策略,
- 建立一个广泛适用的血液形成系统替代方法.
主要方法:
- 开发一种针对全血造标志物CD45的抗体药物联合体 (ADC).
- 人体造血干细胞 (HSC) 的工程,以抵抗针对CD45的ADC.
- 结合疗法包括CD45-ADC治疗和转移工程HSCs.
主要成果:
- 针对CD45的ADC有效地以抗原特异性的方式耗尽了整个造血系统,包括HSC.
- 组合疗法选择性地消除了白血病细胞,同时保持了工程化,屏蔽的HSC的功能.
- 这种方法成功地消除了恶性细胞,并保持了健康的造血.
结论:
- 针对CD45的ADC与工程HSC相结合,为造血系统的替代提供了通用策略.
- 这种方法可以选择性地根除白血病细胞,克服当前HSCT协议的局限性.
- 这种策略有可能用于治疗广泛的血液性恶性瘤,甚至更多.
相关概念视频
Targeted Cancer Therapies
7.6K
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...
7.6K
Bone Marrow Sampling and Transplants
324
Bone marrow transplant is a potential cure for several diseases, including cancer and specific genetic disorders. Notably, this procedure is applicable for patients suffering from aplastic anemia, certain types of leukemia, severe combined immunodeficiency disease (SCID), Hodgkin's disease, non-Hodgkin's lymphoma, multiple myeloma, thalassemia, sickle-cell disease, and certain cancers.
The transplant begins with high doses of chemotherapy and radiation treatment, which aim to destroy...
The transplant begins with high doses of chemotherapy and radiation treatment, which aim to destroy...
324
Regulation of Hematopoietic Stem Cells
3.2K
All blood and immune cells are produced from the multipotent hematopoietic stem cells (HSCs) by the process of hematopoiesis. However, they all have a limited life span. In addition, many are depleted in immune surveillance or combatting an injury or infection. This makes blood one of the most regenerative tissues. Hematopoiesis helps replenish these blood and immune cells, restoring the body's normal functioning. However, overproduction of blood and immune cells can make them cancerous or...
3.2K
Combination Therapies and Personalized Medicine
4.9K
Combining two or more treatment methods increases the life span of cancer patients while reducing damage to vital organs or tissue from the overuse of a single treatment. Combination therapy also targets different cancer-inducing pathways, thus reducing the chances of developing resistance to treatment.
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
4.9K
Multipotency of Hematopoietic Stem Cells
3.1K
The hematopoietic stem cells or HSCs are multipotent, meaning they can differentiate and give rise to all blood and immune cells. HSCs are maintained in the quiescent stage until an external stimulus initiates their differentiation. The multipotent HSCs exist as two heterogeneous populations, long-term repopulating cells (LTRC) and short-term repopulating cells (STRC). The two HSC populations have different surface markers or receptors and are classified based on quiescence and long-term...
3.1K
Stem Cell Therapy for Tissue Regeneration
4.0K
Stem cell therapy is a method used in regenerative medicine to repair and restore function to damaged tissues and organs. Stem cells have the potential to proliferate and differentiate into various tissue types, making them ideal candidates for tissue regeneration. For example, hematopoietic stem cell transplants are commonly used in blood cancer treatment to replenish damaged bone marrow and restore healthy blood cells.
Types of Stem Cells used in Stem Cell Therapy
The two main cell...
Types of Stem Cells used in Stem Cell Therapy
The two main cell...
4.0K


