Case records of the Massachusetts General Hospital. Case 17-2015. A 44-year-old woman with intractable pain due to metastatic lung cancer

A multi-component paclitaxel -loaded β-elemene nanoemulsion by transferrin modification enhances anti-non-small-cell lung cancer treatment

A multi-component paclitaxel (PTX) -loaded β-elemene nanoemulsion by transferrin modification (Tf-PE-MEs) was developed to enhance non-small-cell lung cancer (NSCLC) treatment. After transferrin modification, the particle size of Tf-PE-MEs was (14.87 ± 1.84) nm, and the zeta potential was (-10.19 ± 0.870) mV, respectively. In vitro experiments showed that Tf-PE-MEs induced massive apoptosis in A549 cells, indicating that it had significant cytotoxicity to A549 cells. Through transferrin modification, Tf-PE-MEs accumulated at the tumor site efficiently with overexpressed transferrin receptor (TfR) on the surface of A549 cells. This will allow increasing PTX and β-elemene concentration in the target cells, enhancing the therapeutic effect. Compared to PTX alone, Tf-PE-MEs displayed good anti-tumor efficacy and diminished systemic toxicity in vivo studies. With favourable therapeutic potential, this study provides a new strategy for the combined anticancer treatment of non-small cell lung cancer.

Why dedicate yourself to bioethics? Seven reasons to get you started

The aim of clinical bioethics is to promote rational clinical decisions that take into account the clinical facts and the preferences and values of individuals involved in a situation that entails a moral problem. The objective of the present study is to list the reasons why we consider bioethics knowledge and skills to be essential in daily practice and to promote a proactive mindset in clinical bioethics research. The arguments set forth include the need to adapt to changes in the clinical relationship in recent decades, the importance of an ethical approach both for the physician and the patient, the role of bioethics in preventing professional burnout, the ability of ethics to promote a more equitable distribution of resources and the possibility of conducting clinical research in bioethics, a field that has scarcely been explored in Spain.