• A herb-based formula delivers positive clinical outcomes on COVID-19 patients. • The formula inhibits SARS-CoV-2 pathogenesis in anti-viral & -inflammatory assays. • Real-world-evidence offers insights to inform drug development. • Bed-to-bench approach shortens the time required for finding effective therapeutics.
Hepatocellular carcinoma (HCC) is the most common liver or hepatic cancer, accounting for 80% of all cases. The majority of this cancer mortality is due to metastases, rather than orthotopic tumors. Therefore, the inhibition of tumor metastasis is widely recognized as the key strategy for successful intervention. A cembrane-type diterpene, flaccidoxide-13-acetate, isolated from marine soft coral Sinularia gibberosa, has been reported to have inhibitory effects against RT4 and T24 human bladder cancer invasion and cell migration. In this study, we investigated its suppression effects on tumor growth and metastasis of human HCC, conducting Boyden chamber and Transwell assays using HA22T and HepG2 human HCC cell lines to evaluate invasion and cell migration. We utilized gelatin zymography to determine the enzyme activities of matrix metalloproteinases MMP-2 and MMP-9. We also analyzed the expression levels of MMP-2 and MMP-9. Additionally, assays of tissue inhibitors of metalloproteinase-1/2 (TIMP-1/2), the focal adhesion kinase (FAK)/phosphatidylinositide-3 kinases (PI3K)/Akt/mammalian target of the rapamycin (mTOR) signaling pathway, and the epithelial-mesenchymal transition (EMT) process were performed. We observed that flaccidoxide-13-acetate could potentially inhibit HCC cell migration and invasion. We postulated that, by inhibiting the FAK/PI3K/Akt/mTOR signaling pathway, MMP-2 and MMP-9 expressions were suppressed, resulting in HCC cell metastasis. Flaccidoxide-13-acetate was found to inhibit EMT in HA22T and HepG2 HCC cells. Our study results suggested the potential of flaccidoxide-13-acetate as a chemotherapeutic candidate; however, its clinical application for the management of HCC in humans requires further research.
7 September 2023 in Taiwanese Journal of Obstetrics and Gynecology
Chronic pelvic pain (CPP) is one of the most challenging conditions that physicians and patients face nowadays. This study aimed to assess the traditional Chinese medicine (TCM) body constitution profiles, demographic characteristics, and lifestyle of women suffering from CPP. This study included 378 female patients of reproductive potential from a single Obstetrics and Gynecology clinic in Taiwan. Data were collected using the Short Form 36 Health Survey Questionnaire (SF-36), the TCM Body Constitution Deviation (BCQ-44) Questionnaire, and the Behavior Rating Scale. The chi-squared test, the Kruskal-Wallis test, the Mann-Whitney U test, and Spearman's correlation were used to analyze the data. TCM body composition deviation was correlated with the level of pain in patients with CPP. Moreover, the quality of life (QOL) of these patients was found to be affected by the level of pain. Additionally, the QOL was correlated with the TCM body composition deviation profile. The TCM BCQ-44 can be used in the medical practice to assess patients' health status and can also serve as a guide to address the risk factors for CPP.
Immunogenic cell death (ICD) refers to a type of cell death that stimulates immune responses. It is characterized by the surface exposure of damage-associated molecular patterns (DAMPs), which can facilitate the uptake of antigens by dendritic cells (DCs) and stimulate DC activation, resulting in T cell immunity. The activation of immune responses through ICD has been proposed as a promising approach for cancer immunotherapy. The marine natural product crassolide, a cembranolide isolated from the Formosan soft coral Lobophytum michaelae, has been shown to have cytotoxic effects on cancer cells. In this study, we investigated the effects of crassolide on the induction of ICD, the expression of immune checkpoint molecules and cell adhesion molecules, as well as tumor growth in a murine 4T1 mammary carcinoma model. Immunofluorescence staining for DAMP ectolocalization, Western blotting for protein expression and Z′-LYTE kinase assay for kinase activity were performed. The results showed that crassolide significantly increased ICD and slightly decreased the expression level of CD24 on the surface of murine mammary carcinoma cells. An orthotopic tumor engraftment of 4T1 carcinoma cells indicated that crassolide-treated tumor cell lysates stimulate anti-tumor immunity against tumor growth. Crassolide was also found to be a blocker of mitogen-activated protein kinase 14 activation. This study highlights the immunotherapeutic effects of crassolide on the activation of anticancer immune responses and suggests the potential clinical use of crassolide as a novel treatment for breast cancer.
15 May 2023 in Journal of the Formosan Medical Association