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1.
Acta Pharmaceutica Sinica B ; (6): 4305-4317, 2023.
Article in English | WPRIM (Western Pacific) | ID: wpr-1011164

ABSTRACT

Chemoimmunotherapy has been approved as standard treatment for triple-negative breast cancer (TNBC), but the clinical outcomes remain unsatisfied. Abnormal epigenetic regulation is associated with acquired drug resistance and T cell exhaustion, which is a critical factor for the poor response to chemoimmunotherapy in TNBC. Herein, macrophage-camouflaged nanoinducers co-loaded with paclitaxel (PTX) and decitabine (DAC) (P/D-mMSNs) were prepared in combination with PD-1 blockade therapy, hoping to improve the efficacy of chemoimmunotherapy through the demethylation of tumor tissue. Camouflage of macrophage vesicle confers P/D-mMSNs with tumor-homing properties. First, DAC can achieve demethylation of tumor tissue and enhance the sensitivity of tumor cells to PTX. Subsequently, PTX induces immunogenic death of tumor cells, promotes phagocytosis of dead cells by dendritic cells, and recruits cytotoxic T cells to infiltrate tumors. Finally, DAC reverses T cell depletion and facilitates immune checkpoint blockade therapy. P/D-mMSNs may be a promising candidate for future drug delivery design and cancer combination therapy in TNBC.

2.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-451834

ABSTRACT

Objective To explore the status of college students’ attachment and locus of control, and explore their relationship. Methods A total of 198 college students were surveyed adopting Experiences in Close Relationships Inventory and Internality, Powerful Others and Chance Questionnaire. Results The distribution of college student′s attachment type was not balanced,the proportion of dismissing type,security type, fearful type, preoccupied type accounting for 43. 9%,31. 3%,21. 7%,3. 1% respectively. The scores of internality, chance and powerful others were (27. 59 ± 5. 44),(17. 92 ± 6. 66),(17. 70 ± 7. 32) respectively. Attachment avoidance correlated negatively with internality(r= -0. 259,P<0. 01), and positively with chance and powerful others(r=0. 206,0. 221,P<0. 01);besides there was a positive correlation between attachment anxiety and chance,powerful others(r=0. 378, 0. 410,P<0. 01). Attachment avoidance had prediction on internality(R2 =0. 067,P<0. 01). Attachment anxiety had prediction on chance and powerful others(R2 =0. 143,0. 168,P<0. 01). Conclusion College students’ at-tachment has significant effects on locus of control.

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