1.Mechanisms of Curcumol in Inhibiting Proliferation and Migration in Non-small Cell Lung Cancer via JAK2/STAT3 Signaling Pathway
Yu QI ; Yihan YU ; Linling HU ; Bo JIANG ; Yilong ZOU ; Cunyu FAN ; Yiling FAN ; Jixian ZHANG ; Bo XU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(10):34-45
ObjectiveTo investigate the inhibitory effects of curcumol (Cur) on the proliferation and metastasis of non-small cell lung cancer (NSCLC) cells and to explore the underlying mechanisms. MethodsIn vivo, a subcutaneous tumor xenograft model was established to evaluate the antiproliferative effect of Cur. In vitro, the cell counting kit-8 (CCK-8) assay was used to assess the effects of Cur at concentrations of 0, 60, 120, 240, 360, 480, 600, 720, 840, 960 μmol·L-1 on the viability of NCI-A549 and NCI-H23 cells, and to evaluate its inhibitory effect on the proliferation of human bronchial epithelial BEAS-2B cells. Wound healing and Transwell migration assays were conducted to assess changes in cell migratory capacity following Cur treatment. Immunohistochemistry (IHC-P) was used to investigate the regulatory effect of Cur on the Janus kinase 2/signal transducer and activator of transcription 3 (JAK2/STAT3) signaling pathway in tumor tissues. Western blot was performed to determine the protein expression levels of phosphorylated JAK2 (p-JAK2), phosphorylated STAT3 (p-STAT3), proliferating cell nuclear antigen (PCNA), matrix metalloproteinase-2 (MMP-2), matrix metalloproteinase-9 (MMP-9), and vascular endothelial growth factor A (VEGFA) in tumor tissues and cells. To further verify the role of the JAK2/STAT3 signaling pathway in the pharmacological effects of Cur, rescue experiments were performed using the pathway agonist colivelin. ResultsIn vivo experiments showed that, compared with the model group, the tumor volumes of subcutaneous xenografts in nude mice in both low- and high-dose Cur groups were significantly reduced (P<0.05), and the tumor inhibition rates were significantly increased (P<0.05). The inhibitory effect in the high-dose group was comparable to that of the cisplatin group, and the body weight of mice in the Cur groups remained stable throughout the experiment. In vitro, compared with the control group, Cur at concentrations of 120 and 240 μmol·L-1 inhibited the proliferation of NCI-A549 and NCI-H23 cells in a concentration-dependent manner (P<0.05), with a significant inhibitory effect observed at 360 μmol·L-1 (P<0.01), while no significant effect on the viability of BEAS-2B cells was observed. Migration assays demonstrated that, compared with the control group, Cur treatment significantly reduced the migration rates of both cell lines in a concentration-dependent manner (P<0.05), with an inhibitory effect at 360 μmol·L-1 comparable to that of the cisplatin group. Mechanistic validation showed that, compared with the control group, the protein expression levels of p-JAK2 and p-STAT3 in tumor tissues and cells were significantly downregulated in the Cur groups (P<0.01), and the expression levels of downstream proteins PCNA, MMP-2, MMP-9, and VEGFA were also significantly decreased with increasing Cur concentration (P<0.05). In the rescue experiments, compared with the control group, colivelin pretreatment increased cell proliferation and migration rates (P<0.05) and upregulated the expression of related proteins (P<0.05). Compared with the Cur group, the colivelin+Cur group showed significantly increased proliferation and migration rates (P<0.05), along with significantly upregulated protein expression levels (P<0.05). ConclusionCur can significantly inhibit the proliferation and metastasis of NSCLC both in vivo and in vitro, and its mechanism of action is closely associated with the inhibition of JAK2/STAT3 signaling pathway activation.
2.Mechanisms of Oxyresveratrol in Inhibiting Epithelial-mesenchymal Transition in Non-small Cell Lung Cancer via PI3K/Akt Signaling Pathway
Linling HU ; Bo JIANG ; Yu QI ; Yilong ZOU ; Cunyu FAN ; Yiling FAN ; Yihan YU ; Bo XU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(10):46-57
ObjectiveTo investigate the mechanisms by which oxyresveratrol (OXY) inhibits epithelial-mesenchymal transition (EMT) in non-small cell lung cancer (NSCLC) through the phosphatidylinositol 3-kinase/protein kinase B (PI3K/Akt) signaling pathway. MethodsCell counting kit-8 (CCK-8) assays were used to determine the survival rates of A549 and H1299 cells treated with different concentrations of OXY, and appropriate concentrations (0, 30, 60, 90 μmol·L-1) were selected. The effects of OXY on the proliferation of A549 and H1299 cells were evaluated using 5-ethynyl-2′-deoxyuridine (EdU) assays and colony formation assays. Wound healing assays and Transwell invasion assays were performed to assess the effects of OXY on cell migration and invasion. Western blot (WB) was used to detect the expression levels of Snail, E-cadherin, N-cadherin, and Vimentin in A549 and H1299 cells. Network pharmacology and molecular docking were applied to predict the mechanism of action of OXY, and WB was used to evaluate the effects of OXY on proteins in the PI3K/Akt signaling pathway. Rescue experiments were conducted using the PI3K/Akt signaling pathway agonist 740Y-P. Under activation of the PI3K/Akt pathway, the effect of OXY on proliferation, migration, and invasion phenotypes, as well as on the expression levels of PI3K/Akt pathway-related proteins and EMT markers (Snail, E-cadherin, N-cadherin, and Vimentin), were examined. ResultsIn the forward experiments, CCK-8 assay results showed that, compared with the control group, the survival rates of NSCLC cells in the OXY-treated groups (20-120 μmol·L-1) were significantly decreased (P<0.05). The half-maximal inhibitory concentration (IC50) values of A549 and H1299 cells after 48 h of OXY treatment were 113.6 μmol·L-1 and 92.53 μmol·L-1, respectively. Therefore, concentrations of 0, 30, 60, 90 μmol·L-1 were selected as the gradient for subsequent phenotypic and mechanistic studies. Compared with the control group, the proliferation rate, colony number, migration rate, and invasion number of NSCLC cells in the OXY groups (30, 60, and 90 μmol·L-1) were significantly decreased (P<0.01, P<0.05). WB results showed that, compared with the control group, the protein expression levels of Snail, N-cadherin, and Vimentin in NSCLC cells of the OXY groups were significantly decreased (P<0.05), whereas E-cadherin expression was significantly increased (P<0.01). Network pharmacology and molecular docking results indicated that OXY could act on the PI3K/Akt signaling pathway and exhibited good binding affinity with PI3K and Akt proteins. Further WB results showed that, compared with the control group, there were no statistically significant differences in the expression levels of PI3K and Akt proteins in NSCLC cells of the OXY groups, whereas the expression levels of phosphorylated PI3K (p-PI3K) and phosphorylated Akt (p-Akt) were significantly decreased (P<0.05). In the rescue experiments, compared with the control group, the proliferation rate, colony number, migration rate, and invasion number of NSCLC cells in the 740Y-P group (15 μmol·L-1) were significantly increased (P<0.01). Compared with the control + OXY group (90 μmol·L-1), these indices in the 740Y-P + OXY group (15 μmol·L-1 + 90 μmol·L-1) were also significantly increased (P<0.01). WB results showed that, compared with the control group, there were no statistically significant differences in the expression levels of PI3K and Akt proteins in the 740Y-P group. However, the expression levels of p-PI3K, p-Akt, Snail, N-cadherin, and Vimentin were significantly increased (P<0.05), while E-cadherin expression was significantly decreased (P<0.01). Compared with the control + OXY group, there were no statistically significant differences in PI3K and Akt protein expression in the 740Y-P + OXY group. However, the expression levels of p-PI3K, p-Akt, Snail, N-cadherin, and Vimentin were significantly increased (P<0.05), while E-cadherin expression was significantly decreased (P<0.05). ConclusionOXY inhibits the PI3K/Akt signaling pathway and suppresses the EMT process, thereby exerting anti-metastatic effects in NSCLC.
3.Anti-lung Cancer Mechanisms of Yang-warming Herbs and Formulas: A Review
Bo XU ; Yu QI ; Jixian ZHANG ; Linling HU ; Bo JIANG ; Yilong ZOU ; Cunyu FAN ; Yiling FAN ; Qing MIAO ; Yihan YU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(10):70-79
Lung cancer, particularly non-small cell lung cancer (NSCLC), is the malignant tumor with the highest incidence and mortality in China and worldwide. In 2022, the global number of deaths reached 1.8 million, accounting for 18.7% of all cancer-related deaths, seriously threatening human health and life, and posing a severe challenge for prevention and treatment. Although treatment strategies for lung cancer have been continuously enriched in recent years, and progress has been made in targeted therapy and immunotherapy, long-term survival benefits remain limited due to primary or acquired drug resistance, low immune responsiveness, and chemotherapy-related toxicities. Therefore, there is an urgent need to explore safe and effective adjunctive therapeutic strategies. Traditional Chinese medicine (TCM), with its advantages of holistic regulation and individualized syndrome differentiation, has played an increasingly prominent role in comprehensive cancer treatment. TCM holds that "Yang deficiency leads to accumulation" is a key pathogenesis of tumors. Based on the theory that "Yang transforms Qi, while Yin forms substance", deficiency of Yang Qi results in impaired warming and transformation functions, leading to internal accumulation of Yin-cold. This is closely related to dysregulation of the immune microenvironment, "cold tumor" characteristics, and dysfunction of the neuroendocrine system in modern medicine. Accordingly, the therapeutic strategy of "warming Yang, supporting healthy Qi, and combating cancer" has gained increasing attention. In recent years, commonly used Yang-warming Chinese herbs, including Aconiti Lateralis Radix Praeparata, Zingiberis Rhizoma, Cinnamomi Cortex, Epimedii Folium, and Psoraleae Fructus, as well as their active constituents, have achieved notable progress in anti-lung cancer research by regulating multiple signaling pathways, inducing apoptosis, inhibiting metastasis, and reversing drug resistance. In addition, Yang-warming formulae such as Sini Tang and Yanghe Tang have shown promising effects in alleviating myelosuppression, improving cancer-related fatigue, managing malignant pleural effusion, and relieving cancer pain. These therapies exhibit toxicity-reducing and efficacy-enhancing effects, significantly improving patients' quality of life and survival benefits. To systematically summarize the roles and mechanisms of Yang-warming Chinese herbal medicines and compound formulae in lung cancer, this paper provides a comprehensive review of recent advances, aiming to offer insights for the clinical practice of TCM in the prevention and treatment of lung cancer.
4.Mechanisms of Curcumol in Inhibiting Proliferation and Migration in Non-small Cell Lung Cancer via JAK2/STAT3 Signaling Pathway
Yu QI ; Yihan YU ; Linling HU ; Bo JIANG ; Yilong ZOU ; Cunyu FAN ; Yiling FAN ; Jixian ZHANG ; Bo XU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(10):34-45
ObjectiveTo investigate the inhibitory effects of curcumol (Cur) on the proliferation and metastasis of non-small cell lung cancer (NSCLC) cells and to explore the underlying mechanisms. MethodsIn vivo, a subcutaneous tumor xenograft model was established to evaluate the antiproliferative effect of Cur. In vitro, the cell counting kit-8 (CCK-8) assay was used to assess the effects of Cur at concentrations of 0, 60, 120, 240, 360, 480, 600, 720, 840, 960 μmol·L-1 on the viability of NCI-A549 and NCI-H23 cells, and to evaluate its inhibitory effect on the proliferation of human bronchial epithelial BEAS-2B cells. Wound healing and Transwell migration assays were conducted to assess changes in cell migratory capacity following Cur treatment. Immunohistochemistry (IHC-P) was used to investigate the regulatory effect of Cur on the Janus kinase 2/signal transducer and activator of transcription 3 (JAK2/STAT3) signaling pathway in tumor tissues. Western blot was performed to determine the protein expression levels of phosphorylated JAK2 (p-JAK2), phosphorylated STAT3 (p-STAT3), proliferating cell nuclear antigen (PCNA), matrix metalloproteinase-2 (MMP-2), matrix metalloproteinase-9 (MMP-9), and vascular endothelial growth factor A (VEGFA) in tumor tissues and cells. To further verify the role of the JAK2/STAT3 signaling pathway in the pharmacological effects of Cur, rescue experiments were performed using the pathway agonist colivelin. ResultsIn vivo experiments showed that, compared with the model group, the tumor volumes of subcutaneous xenografts in nude mice in both low- and high-dose Cur groups were significantly reduced (P<0.05), and the tumor inhibition rates were significantly increased (P<0.05). The inhibitory effect in the high-dose group was comparable to that of the cisplatin group, and the body weight of mice in the Cur groups remained stable throughout the experiment. In vitro, compared with the control group, Cur at concentrations of 120 and 240 μmol·L-1 inhibited the proliferation of NCI-A549 and NCI-H23 cells in a concentration-dependent manner (P<0.05), with a significant inhibitory effect observed at 360 μmol·L-1 (P<0.01), while no significant effect on the viability of BEAS-2B cells was observed. Migration assays demonstrated that, compared with the control group, Cur treatment significantly reduced the migration rates of both cell lines in a concentration-dependent manner (P<0.05), with an inhibitory effect at 360 μmol·L-1 comparable to that of the cisplatin group. Mechanistic validation showed that, compared with the control group, the protein expression levels of p-JAK2 and p-STAT3 in tumor tissues and cells were significantly downregulated in the Cur groups (P<0.01), and the expression levels of downstream proteins PCNA, MMP-2, MMP-9, and VEGFA were also significantly decreased with increasing Cur concentration (P<0.05). In the rescue experiments, compared with the control group, colivelin pretreatment increased cell proliferation and migration rates (P<0.05) and upregulated the expression of related proteins (P<0.05). Compared with the Cur group, the colivelin+Cur group showed significantly increased proliferation and migration rates (P<0.05), along with significantly upregulated protein expression levels (P<0.05). ConclusionCur can significantly inhibit the proliferation and metastasis of NSCLC both in vivo and in vitro, and its mechanism of action is closely associated with the inhibition of JAK2/STAT3 signaling pathway activation.
5.Mechanisms of Oxyresveratrol in Inhibiting Epithelial-mesenchymal Transition in Non-small Cell Lung Cancer via PI3K/Akt Signaling Pathway
Linling HU ; Bo JIANG ; Yu QI ; Yilong ZOU ; Cunyu FAN ; Yiling FAN ; Yihan YU ; Bo XU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(10):46-57
ObjectiveTo investigate the mechanisms by which oxyresveratrol (OXY) inhibits epithelial-mesenchymal transition (EMT) in non-small cell lung cancer (NSCLC) through the phosphatidylinositol 3-kinase/protein kinase B (PI3K/Akt) signaling pathway. MethodsCell counting kit-8 (CCK-8) assays were used to determine the survival rates of A549 and H1299 cells treated with different concentrations of OXY, and appropriate concentrations (0, 30, 60, 90 μmol·L-1) were selected. The effects of OXY on the proliferation of A549 and H1299 cells were evaluated using 5-ethynyl-2′-deoxyuridine (EdU) assays and colony formation assays. Wound healing assays and Transwell invasion assays were performed to assess the effects of OXY on cell migration and invasion. Western blot (WB) was used to detect the expression levels of Snail, E-cadherin, N-cadherin, and Vimentin in A549 and H1299 cells. Network pharmacology and molecular docking were applied to predict the mechanism of action of OXY, and WB was used to evaluate the effects of OXY on proteins in the PI3K/Akt signaling pathway. Rescue experiments were conducted using the PI3K/Akt signaling pathway agonist 740Y-P. Under activation of the PI3K/Akt pathway, the effect of OXY on proliferation, migration, and invasion phenotypes, as well as on the expression levels of PI3K/Akt pathway-related proteins and EMT markers (Snail, E-cadherin, N-cadherin, and Vimentin), were examined. ResultsIn the forward experiments, CCK-8 assay results showed that, compared with the control group, the survival rates of NSCLC cells in the OXY-treated groups (20-120 μmol·L-1) were significantly decreased (P<0.05). The half-maximal inhibitory concentration (IC50) values of A549 and H1299 cells after 48 h of OXY treatment were 113.6 μmol·L-1 and 92.53 μmol·L-1, respectively. Therefore, concentrations of 0, 30, 60, 90 μmol·L-1 were selected as the gradient for subsequent phenotypic and mechanistic studies. Compared with the control group, the proliferation rate, colony number, migration rate, and invasion number of NSCLC cells in the OXY groups (30, 60, and 90 μmol·L-1) were significantly decreased (P<0.01, P<0.05). WB results showed that, compared with the control group, the protein expression levels of Snail, N-cadherin, and Vimentin in NSCLC cells of the OXY groups were significantly decreased (P<0.05), whereas E-cadherin expression was significantly increased (P<0.01). Network pharmacology and molecular docking results indicated that OXY could act on the PI3K/Akt signaling pathway and exhibited good binding affinity with PI3K and Akt proteins. Further WB results showed that, compared with the control group, there were no statistically significant differences in the expression levels of PI3K and Akt proteins in NSCLC cells of the OXY groups, whereas the expression levels of phosphorylated PI3K (p-PI3K) and phosphorylated Akt (p-Akt) were significantly decreased (P<0.05). In the rescue experiments, compared with the control group, the proliferation rate, colony number, migration rate, and invasion number of NSCLC cells in the 740Y-P group (15 μmol·L-1) were significantly increased (P<0.01). Compared with the control + OXY group (90 μmol·L-1), these indices in the 740Y-P + OXY group (15 μmol·L-1 + 90 μmol·L-1) were also significantly increased (P<0.01). WB results showed that, compared with the control group, there were no statistically significant differences in the expression levels of PI3K and Akt proteins in the 740Y-P group. However, the expression levels of p-PI3K, p-Akt, Snail, N-cadherin, and Vimentin were significantly increased (P<0.05), while E-cadherin expression was significantly decreased (P<0.01). Compared with the control + OXY group, there were no statistically significant differences in PI3K and Akt protein expression in the 740Y-P + OXY group. However, the expression levels of p-PI3K, p-Akt, Snail, N-cadherin, and Vimentin were significantly increased (P<0.05), while E-cadherin expression was significantly decreased (P<0.05). ConclusionOXY inhibits the PI3K/Akt signaling pathway and suppresses the EMT process, thereby exerting anti-metastatic effects in NSCLC.
6.Anti-lung Cancer Mechanisms of Yang-warming Herbs and Formulas: A Review
Bo XU ; Yu QI ; Jixian ZHANG ; Linling HU ; Bo JIANG ; Yilong ZOU ; Cunyu FAN ; Yiling FAN ; Qing MIAO ; Yihan YU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(10):70-79
Lung cancer, particularly non-small cell lung cancer (NSCLC), is the malignant tumor with the highest incidence and mortality in China and worldwide. In 2022, the global number of deaths reached 1.8 million, accounting for 18.7% of all cancer-related deaths, seriously threatening human health and life, and posing a severe challenge for prevention and treatment. Although treatment strategies for lung cancer have been continuously enriched in recent years, and progress has been made in targeted therapy and immunotherapy, long-term survival benefits remain limited due to primary or acquired drug resistance, low immune responsiveness, and chemotherapy-related toxicities. Therefore, there is an urgent need to explore safe and effective adjunctive therapeutic strategies. Traditional Chinese medicine (TCM), with its advantages of holistic regulation and individualized syndrome differentiation, has played an increasingly prominent role in comprehensive cancer treatment. TCM holds that "Yang deficiency leads to accumulation" is a key pathogenesis of tumors. Based on the theory that "Yang transforms Qi, while Yin forms substance", deficiency of Yang Qi results in impaired warming and transformation functions, leading to internal accumulation of Yin-cold. This is closely related to dysregulation of the immune microenvironment, "cold tumor" characteristics, and dysfunction of the neuroendocrine system in modern medicine. Accordingly, the therapeutic strategy of "warming Yang, supporting healthy Qi, and combating cancer" has gained increasing attention. In recent years, commonly used Yang-warming Chinese herbs, including Aconiti Lateralis Radix Praeparata, Zingiberis Rhizoma, Cinnamomi Cortex, Epimedii Folium, and Psoraleae Fructus, as well as their active constituents, have achieved notable progress in anti-lung cancer research by regulating multiple signaling pathways, inducing apoptosis, inhibiting metastasis, and reversing drug resistance. In addition, Yang-warming formulae such as Sini Tang and Yanghe Tang have shown promising effects in alleviating myelosuppression, improving cancer-related fatigue, managing malignant pleural effusion, and relieving cancer pain. These therapies exhibit toxicity-reducing and efficacy-enhancing effects, significantly improving patients' quality of life and survival benefits. To systematically summarize the roles and mechanisms of Yang-warming Chinese herbal medicines and compound formulae in lung cancer, this paper provides a comprehensive review of recent advances, aiming to offer insights for the clinical practice of TCM in the prevention and treatment of lung cancer.
7.Investigation and analysis of the current status of transjugular intrahepatic portosystemic shunt treatment for portal hypertension in China
Haozhuo GUO ; Meng NIU ; Haibo SHAO ; Xinwei HAN ; Jianbo ZHAO ; Junhui SUN ; Zhuting FANG ; Bin XIONG ; Xiaoli ZHU ; Weixin REN ; Min YUAN ; Shiping YU ; Weifu LYU ; Xueqiang ZHANG ; Chunqing ZHANG ; Lei LI ; Xuefeng LUO ; Yusheng SONG ; Yilong MA ; Tong DANG ; Hua XIANG ; Yun JIN ; Hui XUE ; Guiyun JIN ; Xiao LI ; Jiarui LI ; Shi ZHOU ; Changlu YU ; Song HE ; Lei YU ; Hongmei ZU ; Jun MA ; Yanming LEI ; Ke XU ; Xiaolong QI
Chinese Journal of Radiology 2024;58(4):437-443
Objective:To investigate the current situation of the use of transjugular intrahepatic portosystemic shunt (TIPS) for portal hypertension, which should aid the development of TIPS in China.Methods:The China Portal Hypertension Alliance (CHESS) initiated this study that comprehensively investigated the basic situation of TIPS for portal hypertension in China through network research. The survey included the following: the number of surgical cases, main indications, the development of Early-TIPS, TIPS for portal vein cavernous transformation, collateral circulation embolization, intraoperative portal pressure gradient measurement, commonly used stent types, conventional anticoagulation and time, postoperative follow-up, obstacles, and the application of domestic instruments.Results:According to the survey, a total of 13 527 TIPS operations were carried out in 545 hospitals participating in the survey in 2021, and 94.1% of the hospital had the habit of routine follow-up after TIPS. Most hospitals believed that the main indications of TIPS were the control of acute bleeding (42.6%) and the prevention of rebleeding (40.7%). 48.1% of the teams carried out early or priority TIPS, 53.0% of the teams carried out TIPS for the cavernous transformation of the portal vein, and 81.0% chose routine embolization of collateral circulation during operation. Most of them used coils and biological glue as embolic materials, and 78.5% of the team routinely performed intraoperative portal pressure gradient measurements. In selecting TIPS stents, 57.1% of the hospitals woulel choose Viator-specific stents, 57.2% woulel choose conventional anticoagulation after TIPS, and the duration of anticoagulation was between 3-6 months (55.4%). The limitation of TIPS surgery was mainly due to cost (72.3%) and insufficient understanding of doctors in related departments (77.4%). Most teams accepted the domestic instruments used in TIPS (92.7%).Conclusions:This survey shows that TIPS treatment is an essential part of treating portal hypertension in China. The total number of TIPS cases is far from that of patients with portal hypertension. In the future, it is still necessary to popularize TIPS technology and further standardize surgical indications, routine operations, and instrument application.
8.The clinical value of MRI in quantitative evaluation of anterior cruciate ligament mucoid degeneration
Yudan LI ; Fenglin XUE ; Yilong HUANG ; Zhenguang ZHANG ; Yanlin LI ; Guoliang WANG ; Guangtao FAN ; Tianfu QI ; Bo HE
Chinese Journal of Radiology 2021;55(10):1071-1075
Objective:To explore the clinical application value of MRI in quantitative evaluation of anterior cruciate ligament mucoid degeneration (ACL-MD).Methods:From March to July 2020, 40 patients who were scheduled to undergo arthroscopic treatment were prospectively collected in the First Affiliated Hospital of Kunming Medical University.The anterior cruciate ligament tissue from the lateral edge of the tibial end was taken during the operation. Based on the pathologicalre sults, the patients were divided into the ACL-MD group ( n=19) and the normal group ( n=21). The sagittal plane three-dimensional steady-state rapid precession (3D-FIESTA), T 1 mapping, T 2 mapping, and T 2* mapping were performed before the knee joint surgery, and the scanned images were post-processed and analyzed to measure the T 1, T 2, and T 2* values of the tibial end of the anterior cruciate ligament.The relaxation time of the ACL-MD group and the normal group was compared using independent sample t test. The ROC curve was drawn using each parameter and the areas under the curve (AUC) for the diagnosis of ACL-MD were obtained.DeLong test was used to compare the differences of AUCs. Results:The T 1 [(1 291.9±273.4) ms], T 2 [(54.8±10.6) ms], and T 2* values [(30.6±6.4) ms] of anterior cruciate ligaments in the ACL-MD group were significantly higher than those in the normal group [ (1 087.0±121.0), (44.8±7.1), (20.4±4.8) ms; t=3.011, 3.473, 5.658, all P<0.001]. The AUCs of T 1, T 2, T 2* were 0.747, 0.764, 0.912, sensitivity of 63.2%, 63.2%, 100%, and the specificity of 100%, 95.2%, 76.2% in diagnosing ACL-MD. The AUC of the T 2* value was higher than those of the T 1 and T 2 values, and the differences were statistically significant ( Z=1.734, 2.162, P=0.043, 0.031). Conclusion:T 1, T 2, T 2*values measured by MRI quantitative imaging have high performance in assessing knee joint ACL-MD, and T 2* value has the largest AUC and the highest diagnostic efficiency.
9.Proteome analysis in the process of inducing C2C12 cells differentiation towards osteoblast by BMP-2 based on iTRAQ technology
Yilin ZHOU ; Changpeng XU ; Ruizhen QI ; Yilong HOU ; Yi JIANG ; Dongyang FENG ; Bin YU
Chinese Journal of Orthopaedics 2015;35(6):663-669
Objective To apply iTRAQ technology to observe changes in protein expression group in the process of inducing C2C12 cells differentiation towards osteoblast by BMP-2.Methods The myoblast C2C12 cells were seeded in BMP-2 induced differentiation system for differentiation induction.In the 7th day,differentiation protein was extracted and labeled with iTRAQ reagent.Then,mass spectrometric detection,data analysis of differentially expressed proteins,and analysis of biological information were carried out.Results 23 significantly differentially expressed protein spots were screened by BMP-2-induced myoblast C2C12 differentiated cell protein expression profile analysis,where the protein was labeled with iTRAQ reagent.8 protein points were up-regulated,and 15 protein points were down-regulated.Trend classification found that the above differential protein had differential expression in each period of C2C12 cell osteogenic differentiation (1-7 days).Part of up-regulated protein in the early differentiation period showed high expression level;part of up-regulated protein in the late differentiation period showed high expression level;similarly,part of down-regulated protein in the early differentiation period presented low expression level;part of down-regulated protein in the late differentiation period showed low expression level.Preliminary identification showed SERCA3,Cytochrome bS,S100A4,ATPase inhibitor and ATPIF1 presented dynamic changes,which suggests that these proteins may be related to inducing osteogenic differentiation mechanism.Conclusion The results of differential protein expression trend show the necessity of full monitoring of C2C 12 cells osteogenic differentiation and indicate that iTRAQ technology is an effective method of studying protein changes of cellular molecule.Five proteins including SERCA3,Cytochrome b5,S100A4,ATPase inhibitor and ATPIF1 can be used as candidate targets for osteogenic differentiation mechanism research.
10.Efficient generation of mouse ESCs-like pig induced pluripotent stem cells.
Qi GU ; Jie HAO ; Tang HAI ; Jianyu WANG ; Yundan JIA ; Qingran KONG ; Juan WANG ; Chunjing FENG ; Binghua XUE ; Bingteng XIE ; Shichao LIU ; Jinyu LI ; Yilong HE ; Jialu SUN ; Lei LIU ; Liu WANG ; Zhonghua LIU ; Qi ZHOU
Protein & Cell 2014;5(5):338-342

Result Analysis
Print
Save
E-mail