1.Investigation of properties of the resveratrol-beta-cyclodextrin inclusion complex by drug-protein interaction spectra and molecular modeling.
Ming GUO ; Minzhong ZHAN ; Yanke JIANG
Acta Pharmaceutica Sinica 2014;49(5):726-33
The supramolecular inclusion properties of beta-cyclodextrin (beta-CD) and resveratrol (Res) were investigated using drug-protein interaction spectroscopy method. The differences between the results of interaction spectroscopy method and the results of classical method were compared. The total energy of the stable inclusion of cyclodextrin-resveratrol was calculated by Gaussian theory calculation. The stable inclusions in the process of interaction between resveratrol/inclusion complex and bovine lactgoferrin (BLF) were studied by molecular modeling. The results showed that the interaction spectroscopy method could explain the property of the inclusion in a more sensitive manner, it also interpreted the conveying mechanism of BLF binding with inclusion complex. The molecular modeling result showed consistent results with Gaussian theory calculation; both of the two methods obtained the stable configuration of beta-CD-Res inclusion. The relevant result provided an experimental consequence for the pharmacology research of beta-cyclodextrin-resveratrol inclusion complex as well as offering a new reference to the future research of supramolecular inclusion compound.
2.Analysis on sensory processing characteristics of mental health problems in preschoolers
JIANG Xueming, SUN Yanxiang, FENG Zhe, HUANG Yanke, CHEN Yuhuang, WAN Guobin
Chinese Journal of School Health 2020;41(8):1189-1192
Objective:
To analyze the sensory processing characteristics among preschoolers with mental health problems in Nanshan District, Shenzhen.
Methods:
Random cluster sampling was used to select kindergartens for psychological screening from March to June 2018. The Strengths and Difficulties Questionnaire (SDQ) and the Simplified Sensory Questionnaire (SSP) were used to evaluate 6 365 preschool children.
Results:
A total of 15.15% preschoolers were detected with abnormal results. The SSP scores of preschoolers with emotional symptoms/conduct problems/prosocial behaviors were lower than normal preschoolers’(P<0.01). Among the preschoolers with hyperactivity-inattention, taste/smell sensitivity (F=12.45)/underresponsive/seeks sensation(F=102.44), auditory filtering(F=93.51), low energy/weak(F=13.33), visual/auditory sensitivity (F=4.32) scores were lower than normal preschoolers’(P<0.05), the scores of tactile sensitivity movement sensitivity were no statistical difference with normal preschoolers’. Among the preschoolers with peer problem, taste/smell sensitivity(F=5.86), tactile sensitivity(F=6.05), movement sensitivity(F=4.70), auditory filtering(F=17.32), low energy/weak (F=9.56), visual/auditory sensitivity (F=4.16) scores were lower than normal preschoolers’ (P<0.05), and the scores of under-esponsive/seeks sensation were no statistical difference with normal pre-schoolers’. Prosocial behavior and tactile (r=0.30), under-responsive/seeks sensation(r=0.37), auditory filtering(r=0.37), low energy/weak (r=0.31) were positive associated(P<0.01). Emotional symptoms were negatively associated with lack of energy/weakness(r=-0.33, P<0.01).
Conclusion
Mental health problems are related to sensory processing ability in preschoolers. Preschoolers with mental health problems have weak sensory processing ability. Clinicians and occupational therapists should pay attention to evaluation and intervention of sensory processing ability in preschoolers with mental health problems.
3.Knockdown of EMMPRIN (OX47) in MRMT-1 Carcinoma Cells Inhibits Tumor Growth and Decreases Cancer-Induced Bone Destruction and Pain
Yanke CHEN ; Jing LUAN ; Ting JIANG ; Donghui CAI ; Chao SUN ; Xiaofei WANG ; Xiaoge ZHAO ; Xingchun GOU
Cancer Research and Treatment 2021;53(2):576-583
Purpose:
Bone destruction and pain caused by cancer is one of the most devastating complications of cancer patients with bone metastases, and it seriously affects the quality of patients’ life. Extracellular matrix metalloproteinase inducer (EMMPRIN) is a cell adhesion molecule with increased expression in a variety of tumors. This study focused to clarify the specific function of EMMPRIN in bone metastasis of breast cancer.
Materials and Methods:
Adenovirus with shRNA-EMMPRIN was transfected into MRMT-1 rat breast carcinoma cells, and the MRMT-1 cells with different expression levels of EMMPRIN were implanted into the bone marrow cavity of rat tibia. Next, the effect of down-regulation of EMMPRIN was evaluated as follows: bone damage was detected by X-ray radiological and tartrate-resistant acid phosphatase staining; the tumor burden was evaluated by hematoxylin and eosin staining; the test of pain-related behaviors was assessed used the bilateral paw withdrawal mechanical threshold; and the levels of secretory factors in tumor conditioned medium were determined by using enzyme-linked immunosorbent assay.
Results:
We found that down-regulation of EMMPRIN in tumor cells can simultaneously reduce tumor burden, relieve cancer-induced bone destruction and pain.
Conclusion:
Materials and Methods
EMMPRIN is expected to be a therapeutic target for relieving bone metastasis of breast cancer and alleviating cancerinduced bone destruction and pain. The method of targeting EMMPRIN may be a promising strategy for the treatment of cancer in the future.
4.Knockdown of EMMPRIN (OX47) in MRMT-1 Carcinoma Cells Inhibits Tumor Growth and Decreases Cancer-Induced Bone Destruction and Pain
Yanke CHEN ; Jing LUAN ; Ting JIANG ; Donghui CAI ; Chao SUN ; Xiaofei WANG ; Xiaoge ZHAO ; Xingchun GOU
Cancer Research and Treatment 2021;53(2):576-583
Purpose:
Bone destruction and pain caused by cancer is one of the most devastating complications of cancer patients with bone metastases, and it seriously affects the quality of patients’ life. Extracellular matrix metalloproteinase inducer (EMMPRIN) is a cell adhesion molecule with increased expression in a variety of tumors. This study focused to clarify the specific function of EMMPRIN in bone metastasis of breast cancer.
Materials and Methods:
Adenovirus with shRNA-EMMPRIN was transfected into MRMT-1 rat breast carcinoma cells, and the MRMT-1 cells with different expression levels of EMMPRIN were implanted into the bone marrow cavity of rat tibia. Next, the effect of down-regulation of EMMPRIN was evaluated as follows: bone damage was detected by X-ray radiological and tartrate-resistant acid phosphatase staining; the tumor burden was evaluated by hematoxylin and eosin staining; the test of pain-related behaviors was assessed used the bilateral paw withdrawal mechanical threshold; and the levels of secretory factors in tumor conditioned medium were determined by using enzyme-linked immunosorbent assay.
Results:
We found that down-regulation of EMMPRIN in tumor cells can simultaneously reduce tumor burden, relieve cancer-induced bone destruction and pain.
Conclusion:
Materials and Methods
EMMPRIN is expected to be a therapeutic target for relieving bone metastasis of breast cancer and alleviating cancerinduced bone destruction and pain. The method of targeting EMMPRIN may be a promising strategy for the treatment of cancer in the future.