1.Fatty acid metabolism and ovarian cancer
Tingting FAN ; Danni DING ; Zixue ZHAO ; Yang YU ; Fengjuan HAN
Practical Oncology Journal 2023;37(5):429-433
Ovarian cancer is a common malignant tumor in the female reproductive system,and its pathogenesis and regulato-ry mechanisms are extremely complex and still unclear.Fatty acid metabolism mainly involves the processes of fatty acid uptake,syn-thesis,and oxidation.Previous studies have shown that fatty acid metabolism plays a unique role in the occurrence and development of ovarian cancer.Therefore,this article reviews existing literature and delves into the correlation between fatty acid metabolism and ovarian cancer,aiming to provide new perspectives and reflections on the mechanism of fatty acid metabolism and targeted treatment of ovarian cancer.
2.Chinese Medicine Monomers Regulate Autophagy of Cervical Cancer Cells: A Review
Xiaoya ZHU ; Danni DING ; Chengxin ZHANG ; Ying SHEN ; Ying GUO ; Fengjuan HAN
Chinese Journal of Experimental Traditional Medical Formulae 2022;28(18):245-251
Autophagy is a lysosome-mediated catabolic process that captures and degrades dysfunctional organelles and useless proteins during cellular stress process, which plays a dual role in cervical cancer. In the early stage of cervical cancer, autophagy inhibits the occurrence and development of cervical cancer by prohibiting the accumulation of oncogenic p62 protein. In the advanced stage of cervical cancer, inhibition of autophagy of cancer cells enhances the sensitivity of cancer cells to chemotherapeutic drugs, thus inhibiting their proliferation. In recent years, the research on Chinese medicine monomers regulating autophagy in the treatment of cervical cancer has attracted extensive attention from scholars at home and abroad. Chinese medicine monomers regulate the autophagy of cervical cancer cells through multiple pathways and multiple targets, so as to increase the apoptosis rate and reduce the resistance of cancer cells to chemotherapeutic drugs. Therefore, this paper reviewed the mechanism of Chinese medicine monomers in inhibiting cervical cancer through autophagy, expecting to find new breakthroughs in the discovery and development of preventive and therapeutic drugs for cervical cancer. By reviewing the literature, it was found that in the early stage of cervical cancer, Chinese medicine monomers activated autophagy to promote apoptosis of cancer cells, and the main mechanism was to increase lysosomal membrane permeability and chemotherapeutic sensitivity and activate intact autophagy flow. In the advanced stage of cervical cancer, inhibition of autophagy reduced the sensitivity of cancer cells to chemotherapy drugs by inhibiting the formation of autophagosomes and autolysosomes. The treatment of cervical cancer by Chinese medicine monomers regulating autophagy has achieved certain effect, but there are few clinical experimental studies and lack of reliable clinical theoretical basis. Therefore, it is essential to carry out more clinical experimental studies on Chinese medicine monomers regulating autophagy to treat cervical cancer, thus finding more reliable theoretical basis for the treatment of tumors.
3. Identification of Q-Markers from Hedan Tablet by employing “spider-web” mode and taking compounds’ hepatotoxicity into account
Danni WANG ; Jiamin DING ; Xin CHAI ; Jing YANG ; Yuefei WANG ; Xiafei FENG ; Chunlei LIU ; Yingzi ZENG ; Wanhui ZHOU
Chinese Herbal Medicines 2022;14(4):612-621
Objective: Due to the complicated compounds and the synergistic effect of multi-compounds, the quality control and assessment of Chinese materia medica (CMM) encounters a great challenge about how to identify the key compounds, which are directly correlated with its efficacy and safety. On the guidance of study on quality marker (Q-Marker), identification of Q-Markers was performed from Hedan Tablet (HDT) by the aid of the “spider-web” mode and hepatotoxicity evaluation derived from our previous researches and literatures. Methods: By the established ultra performance liquid chromatography with photodiode array detector (UPLC-PDA) method, online UPLC-DPPH· and offline antioxidant assay, 21 candidate compounds of HDT were systematically investigated and comprehensively evaluated by the “spider-web” mode for them properties of Q-Marker based on “content-stability-activity”. In addition, the Q-Markers related with hepatotoxicity based on our previous researches and literatures were identified. Results: Salvianolic acid B (SaB), quercetin-3-O-glucuronide (Qug), isoquercitrin (IQ) and hyperoside (Hyp) were adopted as the preferable Q-Markers of HDT according to the shaded area (A) of tested compounds in “spider-web” mode. Psoralen (Ps), isopsoralen (IP), psoralenoside (PO) and isopsoralenoside (IPO) were also strongly recommended as Q-Markers closely related with safety by considering hepatotoxicity of the accumulated Ps and IP and conversion between glycoside (PO and IPO) and aglycone (Ps and IP). Conclusion: This study provided scientific evidence for quality control and assessment of HDT, and also provided a meaningful reference for application of Q-Markers in CMM.
4. Isolation and epidemiological significance of Yersinia pestis phages in indicator animals from the house mouse plague foci of Yunnan Province
Youhong ZHONG ; Chao SU ; Biao DUAN ; Yibo DING ; Qingchun DU ; Cunjuan DUAN ; Danni ZHAO ; Wei LI ; Peng WANG ; Hesong WU
Chinese Journal of Endemiology 2019;38(11):861-867
Objective:
To investigate whether plague phages were present in the indicator animals of plague foci in Yunnan Province, and to explore their epidemiological significance.
Methods:
Anus swabs were collected from indicator animals (dogs or cats) of the 41 plague affected villages in 26 towns of 10 cities (counties, districts) of Yunnan plague foci from November of 2015 to March of 2018. The