The efficacy and safety of platinum-based chemotherapy for ovarian cancer in pregnancy: A protocol for systematic review and meta-analysis.

BACKGROUND: Ovarian cancer during pregnancy is a rare event. Little is known about the treatment of this condition due to lack of high level evidence. Therefore, we performed a protocol for systematic review and meta-analysis to evaluate the efficacy and safety of platinum-based chemotherapy for the treatment of ovarian cancer during pregnancy. METHODS: This systematic review has been registered in PROSPERO (CRD42022370709), which will be conducted in accordance with preferred reporting items for systematic review and meta-analysis protocols 2015 statement. We will search 7 electronic databases to identify relevant studies from inception to October, 2022, which includes PubMed, MEDLINE, Embase, Cochrane Clinical Trials Database, Web of Science, China National Knowledge Infrastructure, and Chinese Biomedical Literature Database. The Cochrane Handbook for systematic reviews of interventions will be performed to assess a broad category of biases in the included studies. The Grading of Recommendations Assessment, Development and Evaluation system will be used to judge the overall quality of evidence supporting outcomes in this work. Data are analyzed with the Review Manager Version 5.3 software. RESULTS: The results of this meta-analysis would be submitted to peer-reviewed journals for publication. CONCLUSION: This paper will provide high-quality synthesis to assess the efficacy and safety of platinum-based chemotherapy for ovarian cancer in pregnancy.

Kaempferol ameliorate the prognosis of Aspergillus fumigatus keratitis by reducing fungal load and inhibiting the Dectin-1 and p38 MAPK pathway.

Fungal keratitis is one of leading reasons for blindness in the world, which causes corneal blindness mainly due to excessive inflammatory responses. Kaempferol (KAE) is a natural flavonoid which has potent anti-inflammatory effects. However, whether KAE plays protective roles in fungal keratitis and the potentially protective mechanisms are unrevealed. Here we first investigated the anti-inflammatory and antifungal effects of KAE on Aspergillus fumigatus (A. fumigatus) keratitis in C57BL/6 mice. We found that treatment of KAE ameliorated the severity of keratitis, inhibited macrophages and neutrophils recruitment, depressed corneal fungal load, and declined the expression of TLR4 and Dectin-1 in A. fumigatus infected mice corneas. And in activated hyphae or Curdlan stimulated macrophages, pretreatment of KAE also significantly decreased the mRNA and protein expression of IL-1ß, TNF-α, MIP-2 and the phosphorylated-p38 (p-p38)/p38 MAPK ratio. In summary, KAE ameliorated the prognosis of fungal keratitis in C57BL/6 mice by reducing corneal fungal load, depressing the inflammatory cells recruitment, and downregulating the expression of inflammatory factors, and those effects depended on the inhibition of Dectin-1 and p38 MAPK pathway.

Calcium Phosphate-Reinforced Metal-Organic Frameworks Regulate Adenosine-Mediated Immunosuppression.

Long-term accumulation of adenosine (Ado) in tumor tissues helps to establish the immunosuppressive tumor microenvironment and to promote tumor development. Regulation of Ado metabolism is particularly pivotal for blocking Ado-mediated immunosuppression. The activity of adenosine kinase (ADK) for catalyzing the phosphorylation of Ado plays an essential role in regulating Ado metabolism. Specifically, accumulated Ado in the tumor microenvironment occupies the active site of ADK, inhibiting the phosphorylation of Ado. Phosphate can protect ADK from inactivation and restore the activity of ADK. Herein, calcium phosphate-reinforced iron-based metal-organic frameworks (CaP@Fe-MOFs) are designed to reduce Ado accumulation and to inhibit Ado-mediated immunosuppressive response in the tumor microenvironment. CaP@Fe-MOFs are found to regulate the Ado metabolism by promoting ADK-mediated phosphorylation and relieving the hypoxic tumor microenvironment. Moreover, CaP@Fe-MOFs can enhance the antitumor immune response via Ado regulation, including the increase of T lymphocytes and dendritic cells and the decrease of regulatory T lymphocytes. Finally, CaP@Fe-MOFs are used for cancer treatment in mice, alleviating the Ado-mediated immunosuppressive response and achieving tumor suppression. This study may offer a general strategy for blocking the Ado-mediated immunosuppression in the tumor microenvironment and further for enhancing the immunotherapy efficacy in vivo.