1.Ethical considerations for commercial insurance in assisting translational medicine
Chinese Medical Ethics 2025;38(10):1359-1364
Promoting the high-quality development of the transformation of medical scientific research results has become an important content and development direction in China’s medical science and technology system reform. Various risks involved in medical scientific research need to be fully recognized and prevented, and strengthening science and technology insurance services is one of the important ways. Commercial insurance in the field of translational medicine in China is in a rapid development stage, and the main insurance products include drug research and development insurance, clinical trial liability insurance, genetic testing insurance, and other insurances. While commercial insurance intervenes in the innovation of medical science and technology, ethical and liability issues often raise concerns and controversies. Combined with the current practices of handling ethical issues related to commercial insurance for translational medicine in China, this paper reviewed the current development status of commercial insurance related to translational medicine from the perspective of the insurance industry, discussed the relevant ethical issues, and proposed coping strategies.
2.Phenotypic plasticity and secretory heterogeneity in subpopulations derived from single cancer cell.
Zhun LIN ; Siping LIANG ; Zhe PU ; Zhengyu ZOU ; Luxuan HE ; Christopher J LYON ; Yuanqing ZHANG ; Tony Y HU ; Minhao WU
Acta Pharmaceutica Sinica B 2025;15(5):2723-2735
Single-cell analysis of phenotypic plasticity could improve the development of more effective therapeutics. Still, the development of tools to measure single-cell heterogeneity has lagged due to difficulties in manipulating and culturing single cells. Here, we describe a single-cell culture and phenotyping platform that employs a starburst microfluidic network and automatic liquid handling system to capture single cells for long-term culture and multi-dimensional analysis and quantify their clonal properties via their surface biomarker and secreted cytokine/growth factor profiles. Studies performed on this platform found that cells derived from single-cell cultures maintained phenotypic equilibria similar to their parental populations. Single-cell cultures exposed to chemotherapeutic drugs stochastically disrupted this balance to favor stem-like cells. They had enhanced expression of mRNAs and secreted factors associated with cell signaling, survival, and differentiation. This single-cell analysis approach can be extended to analyze more complex phenotypes and screen responses to therapeutic targets.
3.Tetrahedral DNA nanostructures synergize with MnO2 to enhance antitumor immunity via promoting STING activation and M1 polarization.
Siping LIANG ; Jiaying LI ; Zhengyu ZOU ; Miao MAO ; Siqi MING ; Fan LIN ; Ziyan ZHANG ; Can CAO ; Jinyu ZHOU ; Yuanqing ZHANG ; Jiaping LI ; Minhao WU
Acta Pharmaceutica Sinica B 2022;12(5):2494-2505
Stimulator of interferon genes (STING) is a cytosolic DNA sensor which is regarded as a potential target for antitumor immunotherapy. However, clinical trials of STING agonists display limited anti-tumor effects and dose-dependent side-effects like inflammatory damage and cell toxicity. Here, we showed that tetrahedral DNA nanostructures (TDNs) actively enter macrophages to promote STING activation and M1 polarization in a size-dependent manner, and synergized with Mn2+ to enhance the expressions of IFN-β and iNOS, as well as the co-stimulatory molecules for antigen presentation. Moreover, to reduce the cytotoxicity of Mn2+, we constructed a TDN-MnO2 complex and found that it displayed a much higher efficacy than TDN plus Mn2+ to initiate macrophage activation and anti-tumor response both in vitro and in vivo. Together, our studies explored a novel immune activation effect of TDN in cancer therapy and its synergistic therapeutic outcomes with MnO2. These findings provide new therapeutic opportunities for cancer therapy.
4.Alkaloid constituents from Corydalis decumbens
Qilong HUANG ; Wanjin ZHANG ; Yan LI ; Juan CHEN ; Baoping ZHOU ; Xiaohan ZOU ; Chunlei ZHANG ; Zhengyu CAO
Journal of China Pharmaceutical University 2017;48(5):563-567
To study alkaloid constituents in Corydalis decumbens,thirteen compounds were isolated from 95% ethanol extracts of Corydalis decumbens (Thunb) Pers.by silica gel,RP-C1s,Sephadex LH-20 column chromatographer,recry stallization,thin-layer chromatography and HPLC.Their structures were elucidated on the basis of spectral data combined with physiochemical properties as tetrahydropalmatine (1),oxyhydrastinine (2),doryanine (3),palmatine (4),bicuculline (5),canadine (6),tetrahydrocoptisine(7),corydaldine (8),epicorynoxidine (9),N-methylcorydaldine (10),(+)-corlumine (11),N-methyl-6,7-dimethoxyisoquinolone (12) and oxysanguinarine (13).Compounds 2,3,6,7,and 9-13 were isolated from this plant for the first time.In addition,compounds 2,3,and 9-13 were obtained firstly from this genus.Pharmacological experiments showed that tetrahydropalmatine (1) might have analgesic or sedative effects,and the bicuculline (5) could probably induce epilepsy.

Result Analysis
Print
Save
E-mail