期刊
NANO LETTERS
卷 21, 期 14, 页码 6042-6050出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.1c01220
关键词
sonodynamic therapy; hemoglobin; ROS; hypoxia; mitochondria-involved apoptosis
类别
资金
- National Natural Science Foundation of China [NSFC 51929201, 51720105015, 51922097]
- CAS-Croucher Funding Scheme for Joint Laboratories [CAS18204]
- Chinese Academy of Sciences [YZDYSSWJSC018]
- Chinese Government [2017YFE0132300]
- Australian Government [2017YFE0132300]
The study demonstrates that hemoglobin (Hb) as a sonosensitizer shows great potential and has better sensitization efficiency compared to traditional sonosensitizers, effectively avoiding the low ROS quantum yield problem. By integrating with ZIF-8 to form a nanoplatform, it can effectively suppress deep-seated tumors under ultrasound irradiation.
The development of novel sonosensitizers with outstanding reactive oxygen (ROS) generation capacity and great biocompatibility poses a significant challenge for the clinical practice of sonodynamic therapy (SDT). In this work, hemoglobin (Hb) with natural metalloporphyrin was first shown to possess great potential as a sonosensitizer. Compared with traditional organic sonosensitizers, Hb had satisfactory sono-sensitizing efficiency because four the porphyrin molecules were separated by four polypeptide chains. This effectively avoided the problem of low ROS quantum yield caused by the stacking of hydrophobic porphyrins. Meanwhile, Hb is an efficient and safe oxygen carrier that may release O-2 at hypoxic tumors site, which improved tumor oxygenation and subsequently enhanced SDT efficacy. Therefore, Hb was integrated with zeolitic imidazolate framework 8 (ZIF-8) to form a nanoplatform that demonstrated a potent suppression effect on deep-seated tumors under ultrasound irradiation.
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