Objective:To study the effects of exosomes (EXO) released by adenoid cystic carcinoma SACC-83 cells on the expression of fibroblast activation protein (FAP) in normal human salivary gland stromal fibroblasts (hSGSFs).Methods:ACC exosomes were isolated from SACC-83 cell culture supernatant by using Total Exosome Isolation Reagent.The whole-mount EXO were characterized and assessed by transmission electron microscope and Western Blot.The exosomes were labeled with green fluorescent dye PKH67 and co-cultured with hSGSFs for 48h,followed by staining with Alexa Fluor 594 Phalloidin and DAPI.Mterwards,exsosomes uptake was observed under a laser scanning confocal microscope.After a 48-hour co-culture of SACC-83 exosomes with hSGSFs,the expression of FAP in SACC-83-EXO-treated hSGSFs was investigated by qRT-PCR and Western Blot.Results:The vesicles isolated from SACC-83 cell culture supernatant had the reported size range of 30-100 nm,expressed the exosomal marker CD63 and TSG101.Mter co-culture of hSGSFs with PKH67 labeled SACC-83 exosomes,exosomes were taken up by hSGSFs and FAP expression was elevated in hSGSFs.Conclusion:Exosomes derived from SACC-83 cells can be taken up by hSGSFs and can induce the expression of FAP in hSGSFs.These results suggest that exosomes derived from SACC-83 cells might induce the transformation of normal salivary gland strormal fibroblasts to cancer associated fibroblasts.

Objective: To explore the serological and genotypic characteristics of a pedigree with B(A).06 subtype. Methods: Serological methods was used to identify the ABO phenotypes. Exons 6 and 7 of the ABO gene and flanking regions were subjected to direct sequencing and TA clonal sequencing in order to determine the genotype of individuals with inconsistent results for forward and reverse serological typing. Results: Among 12 individuals from 4 generations, 5 were identified with a AwB phenotype, along with a c. 803C>G mutation in exon 7 of the B allele, which was named as B(A).06. The B(A).06/O.01.01 phenotype may be easily missed due to its weak anti-A antibody in the serum upon initial serological test. Conclusion A B(A).06 subtype family was identified. The serological phenotype of individuals carrying the B(A).06 allele may be affected by the opposite DNA strand.

Objective:To explore the relative concentration changes of oxygenated hemoglobin (Oxy Hb) in the prefrontal cortex (PFC) and brain region activation during emotional face recognition tasks in women with perimenopausal depression.Methods:From February to April 2023, forty perimenopausal women were recruited, including 20 women with perimenopausal depression (experimental group) and 20 women with non-perimenopausal depression (control group). All participants were evaluated by the modified Kupperman score, 24-item Hamilton depression scale (HAMD-24), and patient health questionnaire (PHQ-9). Functional near-infrared spectroscopy (fNIRS) equipment was used to measure the relative concentration of Oxy-Hb in the PFC in two groups under the emotional face recognition task. Statistical analysis was performed by SPSS 26.0 software. Data were analyzed by a t-test, rank sum test, and Pearson correlation. Results:There were statistically significant differences in the results of the modified Kupperman score((23.20±3.66), (18.10±1.28)), HAMD-24((15.95±5.47), (3.35±1.84)), and PHQ-9(7.00(5.00, 10.75), 1.50(1.00, 3.00)) scales between the the experimental group and control group ( P<0.05). There was a positive correlation between the modified Kupperman score and the HAMD-24 score in the experimental group ( r=0.685, P=0.01). The reaction time of the experimental group in identifying negative and neutral emotional faces was statistically significant compared to the control group( t=4.01, 4.80, both P<0.05). Compared with identifying neutral emotions, PFC activation was stronger in the experimental group and control group when identifying negative emotions ( P<0.05). The PFC activation in the experimental group was stronger than that in the control group when identifying negative emotions ( P<0.05). There was no statistically significant difference in the activation level between the two groups when identifying neutral emotions ( P>0.05). Conclusion:Women with perimenopausal depression exhibit specificity in emotional processing, with increased PFC activation when identifying negative emotions, impaired emotional processing function of PFC, and dysfunction of aerobic metabolism.