埃舍里希亚大肠杆菌衍生外膜囊泡对结肠直肠癌的抗癌作用
Marjan Ghiyasvand1, Ardeshir Hesampour1, Hossein Dabiri2
1Department of Biology, Central Tehran Branch, Islamic Azad University, Tehran, Iran.
Reports of biochemistry & molecular biology
|May 7, 2025
概括
来自大肠杆菌 (大肠杆菌) 的外膜囊泡 (OMV) 显示了对结直肠癌的抗癌潜力. 在临床前模型中,使用大肠杆菌衍生OMV治疗促进了亡并抑制了瘤生长.
科学领域:
- 微生物学 微生物学
- 在瘤学瘤学.
- 生物技术是生物技术.
背景情况:
- 结肠直肠癌是导致癌症死亡的主要原因,治疗结果不佳.
- 众所周知,由大肠杆菌 (E. coli) 衍生的外膜囊泡 (OMV) 诱导炎症.
- 这项研究研究了大肠杆菌OMVs作为结直肠癌的抗癌疗法的潜力.
研究的目的:
- 在结直肠癌模型中评估大肠杆菌衍生OMV的抗癌作用.
- 确定OMVs在抑制瘤生长和促进亡方面的治疗潜力.
主要方法:
- 使用DLS和SEM从五种大肠杆菌菌株中分离和描述OMV.
- 在实验室和体内评估大肠杆菌OMVs在结直肠癌小鼠模型.
主要成果:
- 大肠杆菌的益生菌菌株产生了球形的OMV (5-200nm).
- 与对照组相比,OMV治疗显著增加了结直肠瘤组织的亡.
- 在OMV治疗组中,瘤生长被抑制.
结论:
- 从大肠杆菌衍生出的OMV显示出针对结直肠癌的显著抗癌潜力.
- OMV可以作为一种具有最小副作用的新型治疗剂.
- 机制包括促进细胞亡和抑制细胞增殖.
更多相关视频
相关概念视频
Cancer Therapies
7.4K
Cancer therapies are various modes of treatment, such as surgery, radiation therapy, and chemotherapy that are administered to cancer patients.
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
7.4K
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
Inhibition of Cdk Activity
4.6K
The orderly progression of the cell cycle depends on the activation of Cdk protein by binding to its cyclin partner. However, the cell cycle must be restricted when undergoing abnormal changes. Most cancers correlate to the deregulated cell cycle, and since Cdks are a central component of the cell cycle, Cdk inhibitors are extensively studied to develop anticancer agents. For instance, cyclin D associates with several Cdks, such as Cdk 4/6, to form an active complex. The cyclin D-Cdk4/6 complex...
4.6K
Combination Therapies and Personalized Medicine
4.8K
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...
4.8K
Loss of Tumor Suppressor Gene Functions
4.6K
Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells.
When the tumor suppressor genes develop mutations or are lost, cells start growing out of control, leading to cancer. However, a single functional copy of the tumor suppressor gene is enough for the cells to maintain their normal functions and cell...
When the tumor suppressor genes develop mutations or are lost, cells start growing out of control, leading to cancer. However, a single functional copy of the tumor suppressor gene is enough for the cells to maintain their normal functions and cell...
4.6K
Adaptive Mechanisms in Cancer Cells
5.6K
Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
5.6K


