在上皮卵巢癌中BRD4抑制剂的抗癌作用
Yeorae Kim1, Wook-Ha Park1, Dong-Hoon Suh1,2
1Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, 82 Gumi-ro, 173 Beon-gil, Bundang-gu, Seongnam 13620, Republic of Korea.
Cancers
|March 13, 2024
概括
这项研究表明,OPT-0139,一种原体抑制剂 (BRD4),通过减少细胞生长和促进细胞亡,有效治疗卵巢癌. 它还克服了化学抵抗,提供了一个有前途的新治疗策略.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 勃罗姆多马因抑制剂正在研究用于癌症治疗.
- 含原蛋白 (BRDs) 在卵巢癌中的作用需要进一步澄清.
- 抗化学反应是治疗卵巢癌的一个重大挑战.
研究的目的:
- 评估OPT-0139的抗瘤疗效,这是一种旨在克服卵巢癌化学抵抗的新药.
- 阐明OPT-0139的作用机制,重点关注其对原蛋白和额外末端域4 (BRD4) 和c-Myc.
- 评估OPT-0139作为单疗法和与西斯普拉丁联合治疗卵巢癌的潜力.
主要方法:
- 使用了人类卵巢癌细胞系 (SKOV3,OVCAR3) 和老鼠异种移植模型.
- 使用MTT和ATP测试评估细胞活力和增殖.
- 通过流式细胞计量确定细胞循环停止和细胞亡.
- 使用RT-PCR,实时PCR和西班牙布洛特来量化BRD4,c-Myc和亡相关分子的基因和蛋白质表达.
主要成果:
- OPT-0139显著抑制了卵巢癌细胞活力和增殖.
- 药物诱导细胞循环停止和细胞亡在体外.
- 在体内研究表明,OPT-0139减少了瘤生长,体积和体重,与BRD4相关基因表达的显著变化.
- 与西斯普拉丁联合治疗增强了亡并比单一治疗更有效地抑制了瘤生长.
结论:
- 在卵巢癌模型中,OPT-0139通过抑制增殖,降低活力,停止细胞循环和诱导亡,显示出显著的抗瘤活性.
- OPT-0139作为BRD4抑制剂,表明其作为卵巢癌向治疗的潜力.
- 与西斯普拉丁的联合治疗可能为卵巢癌提供了改进的治疗策略,克服化疗抵抗.
相关概念视频
02:57Targeted 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
02:34Inhibition of Cdk Activity
4.8K
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...
4.8K
01:20The Retinoblastoma Gene
4.1K
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.
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...
4.1K
02:49Cancer Therapies
7.7K
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...
7.7K
02:56Treatment Resistant Cancers
3.3K
Cancer is the second leading cause of death in the United States. A cancer cell is genetically unstable and hence can mutate faster. They can also modify their microenvironment and escape immune surveillance. The difficulties in treating cancer are further compounded by the emergence of rapid resistance to anticancer drugs. The most common ways to attain resistance in cancer cells include alteration in drug transport and metabolism, modification of drug target, elevated DNA damage response, or...
3.3K
02:38Mitogens and the Cell Cycle
6.5K
Mitogens and their receptors play a crucial role in controlling the progression of the cell cycle. However, the loss of mitogenic control over cell division leads to tumor formation. Therefore, mitogens and mitogen receptors play an important role in cancer research. For instance, the epidermal growth factor (EGF) - a type of mitogen and its transmembrane receptor (EGFR), decides the fate of the cell's proliferation. When EGF binds to EGFR, a member of the ErbB family of tyrosine kinase...
6.5K