1.Effect of central positioning techniques for anterior capsulotomy in femtosecond laser-assisted cataract surgery on intraocular placement and visual quality
Shuaishuai LIU ; Wei ZHOU ; Xiaochen DING ; Shuang ZHANG ; Qiangqiang CHI ; Yong LIU
International Eye Science 2025;25(4):523-529
AIM: To examine how three distinct central positioning techniques for anterior capsulotomy-pupil center, limbus center, and lens apex-affect intraocular lens(IOL)placement and visual quality following femtosecond laser-assisted cataract surgery(FLACS).METHODS: A total of 36 patients(72 eyes)with age-related cataracts who underwent FLACS and ZCB00 aspherical IOL implantation at Aier Eye Hospital Medical Center, Anhui Medical University between January and December 2023 were included in this prospective study. Patients were divided into three groups based on the central positioning mode for anterior capsulotomy: pupil center, limbus center, and lens apex center groups. IOL alignment and displacement were evaluated using the Casia2 device, and the postoperative visual quality was assessed.RESULTS: At 1 d postoperatively, the IOL tilt for the pupil, limbus, and apex groups were 3.96°±1.51°, 4.63°±1.87°, and 3.90°±2.24°, respectively(F=1.07, P=0.35); IOL decentration values were 0.21±0.10 mm, 0.23±0.16 mm, and 0.21±0.12 mm, respectively(F=0.14, P=0.87); total higher-order aberrations were 0.32±0.40 μm, 0.56±0.61 μm, and 0.53±0.60 μm, respectively(F=1.38, P=0.26); and coma aberrations values were 0.13±0.10 μm, 0.16±0.15 μm, and 0.14±0.15 μm, respectively(F=0.3, P=0.74). All results obtained postoperative day 1 did not differ significantly. At 3 mo postoperatively, IOL tilt values were 5.42°±2.00°, 3.96°±1.44°, and 3.20°±1.19°, respectively(F=12.40, P<0.001); IOL decentration values were 0.33±0.07 mm, 0.23±0.11 mm, and 0.21±0.11 mm, respectively(F=4.99, P=0.008); total higher-order aberrations were 0.67±0.29 μm, 0.44±0.37 μm, and 0.42±0.19 μm, respectively(F=5.50, P=0.006); and coma aberrations values were 0.21±0.12 μm, 0.19±0.12 μm, and 0.12±0.11 μm, respectively(F=3.87, P=0.03). All results obtained 3 mo postoperatively were statistically significant.CONCLUSION: Using the lens apex as the central positioning mode for anterior capsulotomy in FLACS improves postoperative IOL stability and reduces postoperative IOL tilt and decentration. If the lens apex cannot be determined intraoperatively, the limbus center-positioning mode is recommended.
2.Causes and management strategies of anesthetic complications during percutaneous spinal endoscopic surgery under local anesthesia
Baoshan XU ; Shuaishuai WEI ; Wenyi LI ; Qiang YANG ; Binggang GUAN ; Chao CHEN ; Haiwei XU ; Ning LI ; Lilong DU ; Tongxing ZHANG ; Jiawen GUAN ; Zhaomin ZHENG ; Yue ZHOU
Chinese Journal of Orthopaedics 2025;45(1):51-58
Objective:To investigate the causes and management strategies of anesthetic complications during percutaneous spinal endoscopic surgery under local anesthesia.Methods:A total of 16 800 patients (8 625 males and 8 175 females) who underwent percutaneous spinal endoscopic surgery under local anesthesia (including intravenous basic anesthesia) in Tianjin Hospital, Shandong Public Health Clinical Center and Hebei General Hospital from February 2012 to February 2023 were retrospectively analyzed. The average age was 45.3±21.6 years (range, 12-84 years). There were 220 cases of posterior cervical keyhole endoscopic surgery, 50 cases of thoracic transforaminal endoscopic surgery, 70 cases of thoracic posterior interlaminar endoscopic surgery, 11 670 cases of lumbar transforaminal endoscopic surgery, and 4 790 cases of lumbar posterior interlaminar endoscopic surgery. The occurrence time, clinical manifestations, management of intraoperative anesthesia complications were recorded, as well as surgical segments, puncture sites, complication symptoms, signs, outcome and prognosis.Results:All patients received percutaneous water-mediated uniaxial spinal endoscopic surgery under local anesthesia. There were 9 patients experienced anesthesia complications, including 6 cases of epidural diffusion of anesthetics and 3 cases of anesthetics mistakenly entering the subarachnoid space. There were 4 males and 5 females, aged 48.4±18.2 years (range, 28-84 years). There were 1 case of T 12L 1 disc herniation, 1 case of C 5-6 disc herniation, 3 cases of L 4-5 disc herniation and 4 cases of L 5S 1 disc herniation. Surgical segments and procedures: 1 case of C 5-6 posterior Keyhole endoscopic surgery, 1 case of T 12L 1 transforaminal endoscopic surgery, 2 cases of L 4-5 transforaminal endoscopic surgery, 1 case of L 4-5 interlaminar endoscopic surgery, and 4 cases of L 5S 1 interlaminar endoscopic surgery. Anesthesia complications all appeared 5-10 min after injection of local anesthetics, with symptoms of decreased oxygen saturation, decreased blood pressure, altered consciousness, and sensory and motor dysfunction of limbs. 6 patients with epidural diffusion of anesthetics recovered completely after symptomatic treatment in 5 cases, and 1 case was left with foot drop. Three patients with anesthetics mistakenly entering the subarachnoid space were immediately converted to the supine position, of which one recovered by mask oxygenation; 1 patient improved after emergency tracheal intubation, rehydration, and application of vasoconstrictive medications; and 1 patient developed multiple complications such as multiorgan failure, rhabdomyolysis, and sepsis after tracheal intubation, and recovered at 3 months after surgery with symptomatic treatment. Conclusions:Epidural diffusion and entering into subarachnoid space of anesthetics are serious complications of local anesthesia in percutaneous spinal endoscopic surgery. In addition to sensory and motor dysfunction of the limbs, the functions of the respiratory and circulatory systems can also be affected. It is necessary to be alert to the occurrence of anesthesia-related complications during operation and early identification and treatment.
3.Application of holographic imaging digital localization technology in robotic partial nephrectomy for completely endophytic renal tumor
Zhengsheng LIU ; Shuaishuai SONG ; Xuegang WANG ; Kaiyan ZHANG ; Wei LI ; Zhun WU ; Bin CHEN ; Tao WANG ; Jinchun XING
Chinese Journal of Urology 2025;46(5):376-382
Objective:To evaluate the clinical value of holographic imaging-based digital localization technology in robot-assisted partial nephrectomy(RAPN)for the treatment of completely endophytic renal tumors.Methods:A retrospective analysis was conducted on the clinical data of 23 patients with completely endophytic renal tumors who underwent RAPN at the First Affiliated Hospital of Xiamen University between December 2022 and December 2024. Patients were divided into two groups based on the use of holographic imaging:the holographic imaging group(16 cases)and the conventional group(7 cases). There was no statistically significant difference between the holographic imaging group and the conventional group in terms of age[(41.9 ± 13.4)years vs.(46.9 ± 13.4)years],body mass index[(25.6 ± 4.8)kg/m2 vs.(24.7 ± 3.1)kg/m2],maximum tumor diameter[(3.1 ± 0.9)cm vs.(3.0 ± 9.0)cm],tumor volume[(13.2 ± 9.0)cm3 vs.(34.9 ± 9.9)cm3],R.E.N.A.L. score[(9.4 ± 1.2)points vs.(9.9 ± 0.7)points],PADUA score[(10.4 ± 0.7)points vs.(9.4 ± 0.7)points],proportion of T 1a stage patients[12 cases(75.0%)vs. 6 cases(85.7%)]and preoperative serum creatinine[(67.4 ± 9.5)μmol/L vs.(78.0 ± 16.0)μmol/L]. In the holographic group,holographic models were reconstructed based on preoperative enhanced CT or MRI images and used for preoperative planning and intraoperative localization. In the conventional group,surgeons relied on preoperative CT or MRI images for cognitive fusion during RAPN. Perioperative parameters such as warm ischemia time,operative time,tumor localization time,positive surgical margin rate,and renal function were compared between the two groups. Results:The operative time in the holographic group was significantly shorter than that in the conventional group[(152.8 ± 12.9)min vs.(218.4 ± 105.5)min, P = 0.001]. Warm ischemia time[(26.9 ± 3.4)min vs.(30.7 ± 3.8)min, P < 0.001],localization time[(4.2 ± 0.9)min vs.(8.9 ± 1.7)min, P < 0.001],and estimated blood loss[(47.0 ± 17.7)ml vs.(128.6 ± 87.8)ml, P < 0.001]were also significantly lower in the holographic group. In the conventional group,one patient underwent radical nephrectomy,while no patient in the holographic imaging group required conversion to radical nephrectomy. No cases of positive surgical margins were identified in either group. Serum creatinine levels measured one month after surgery showed no statistically significant differences between the two groups[(79.5 ± 15.7)μmol /L vs.(104.9 ± 22.5)μmol /L]. Conclusions:The application of holographic imaging-based digital localization technology in RAPN for completely endophytic renal tumors significantly reduces operative time,localization time,warm ischemia time,and intraoperative blood loss. This technology improves surgical efficiency and success rates,offering distinct clinical advantages.
4.Causes and management strategies of anesthetic complications during percutaneous spinal endoscopic surgery under local anesthesia
Baoshan XU ; Shuaishuai WEI ; Wenyi LI ; Qiang YANG ; Binggang GUAN ; Chao CHEN ; Haiwei XU ; Ning LI ; Lilong DU ; Tongxing ZHANG ; Jiawen GUAN ; Zhaomin ZHENG ; Yue ZHOU
Chinese Journal of Orthopaedics 2025;45(1):51-58
Objective:To investigate the causes and management strategies of anesthetic complications during percutaneous spinal endoscopic surgery under local anesthesia.Methods:A total of 16 800 patients (8 625 males and 8 175 females) who underwent percutaneous spinal endoscopic surgery under local anesthesia (including intravenous basic anesthesia) in Tianjin Hospital, Shandong Public Health Clinical Center and Hebei General Hospital from February 2012 to February 2023 were retrospectively analyzed. The average age was 45.3±21.6 years (range, 12-84 years). There were 220 cases of posterior cervical keyhole endoscopic surgery, 50 cases of thoracic transforaminal endoscopic surgery, 70 cases of thoracic posterior interlaminar endoscopic surgery, 11 670 cases of lumbar transforaminal endoscopic surgery, and 4 790 cases of lumbar posterior interlaminar endoscopic surgery. The occurrence time, clinical manifestations, management of intraoperative anesthesia complications were recorded, as well as surgical segments, puncture sites, complication symptoms, signs, outcome and prognosis.Results:All patients received percutaneous water-mediated uniaxial spinal endoscopic surgery under local anesthesia. There were 9 patients experienced anesthesia complications, including 6 cases of epidural diffusion of anesthetics and 3 cases of anesthetics mistakenly entering the subarachnoid space. There were 4 males and 5 females, aged 48.4±18.2 years (range, 28-84 years). There were 1 case of T 12L 1 disc herniation, 1 case of C 5-6 disc herniation, 3 cases of L 4-5 disc herniation and 4 cases of L 5S 1 disc herniation. Surgical segments and procedures: 1 case of C 5-6 posterior Keyhole endoscopic surgery, 1 case of T 12L 1 transforaminal endoscopic surgery, 2 cases of L 4-5 transforaminal endoscopic surgery, 1 case of L 4-5 interlaminar endoscopic surgery, and 4 cases of L 5S 1 interlaminar endoscopic surgery. Anesthesia complications all appeared 5-10 min after injection of local anesthetics, with symptoms of decreased oxygen saturation, decreased blood pressure, altered consciousness, and sensory and motor dysfunction of limbs. 6 patients with epidural diffusion of anesthetics recovered completely after symptomatic treatment in 5 cases, and 1 case was left with foot drop. Three patients with anesthetics mistakenly entering the subarachnoid space were immediately converted to the supine position, of which one recovered by mask oxygenation; 1 patient improved after emergency tracheal intubation, rehydration, and application of vasoconstrictive medications; and 1 patient developed multiple complications such as multiorgan failure, rhabdomyolysis, and sepsis after tracheal intubation, and recovered at 3 months after surgery with symptomatic treatment. Conclusions:Epidural diffusion and entering into subarachnoid space of anesthetics are serious complications of local anesthesia in percutaneous spinal endoscopic surgery. In addition to sensory and motor dysfunction of the limbs, the functions of the respiratory and circulatory systems can also be affected. It is necessary to be alert to the occurrence of anesthesia-related complications during operation and early identification and treatment.
5.Application of holographic imaging digital localization technology in robotic partial nephrectomy for completely endophytic renal tumor
Zhengsheng LIU ; Shuaishuai SONG ; Xuegang WANG ; Kaiyan ZHANG ; Wei LI ; Zhun WU ; Bin CHEN ; Tao WANG ; Jinchun XING
Chinese Journal of Urology 2025;46(5):376-382
Objective:To evaluate the clinical value of holographic imaging-based digital localization technology in robot-assisted partial nephrectomy(RAPN)for the treatment of completely endophytic renal tumors.Methods:A retrospective analysis was conducted on the clinical data of 23 patients with completely endophytic renal tumors who underwent RAPN at the First Affiliated Hospital of Xiamen University between December 2022 and December 2024. Patients were divided into two groups based on the use of holographic imaging:the holographic imaging group(16 cases)and the conventional group(7 cases). There was no statistically significant difference between the holographic imaging group and the conventional group in terms of age[(41.9 ± 13.4)years vs.(46.9 ± 13.4)years],body mass index[(25.6 ± 4.8)kg/m2 vs.(24.7 ± 3.1)kg/m2],maximum tumor diameter[(3.1 ± 0.9)cm vs.(3.0 ± 9.0)cm],tumor volume[(13.2 ± 9.0)cm3 vs.(34.9 ± 9.9)cm3],R.E.N.A.L. score[(9.4 ± 1.2)points vs.(9.9 ± 0.7)points],PADUA score[(10.4 ± 0.7)points vs.(9.4 ± 0.7)points],proportion of T 1a stage patients[12 cases(75.0%)vs. 6 cases(85.7%)]and preoperative serum creatinine[(67.4 ± 9.5)μmol/L vs.(78.0 ± 16.0)μmol/L]. In the holographic group,holographic models were reconstructed based on preoperative enhanced CT or MRI images and used for preoperative planning and intraoperative localization. In the conventional group,surgeons relied on preoperative CT or MRI images for cognitive fusion during RAPN. Perioperative parameters such as warm ischemia time,operative time,tumor localization time,positive surgical margin rate,and renal function were compared between the two groups. Results:The operative time in the holographic group was significantly shorter than that in the conventional group[(152.8 ± 12.9)min vs.(218.4 ± 105.5)min, P = 0.001]. Warm ischemia time[(26.9 ± 3.4)min vs.(30.7 ± 3.8)min, P < 0.001],localization time[(4.2 ± 0.9)min vs.(8.9 ± 1.7)min, P < 0.001],and estimated blood loss[(47.0 ± 17.7)ml vs.(128.6 ± 87.8)ml, P < 0.001]were also significantly lower in the holographic group. In the conventional group,one patient underwent radical nephrectomy,while no patient in the holographic imaging group required conversion to radical nephrectomy. No cases of positive surgical margins were identified in either group. Serum creatinine levels measured one month after surgery showed no statistically significant differences between the two groups[(79.5 ± 15.7)μmol /L vs.(104.9 ± 22.5)μmol /L]. Conclusions:The application of holographic imaging-based digital localization technology in RAPN for completely endophytic renal tumors significantly reduces operative time,localization time,warm ischemia time,and intraoperative blood loss. This technology improves surgical efficiency and success rates,offering distinct clinical advantages.
6.Effect of Gandou Fumu Decoction on Autophagy in Mice with Liver Fibrosis in Wilson's Disease by Regulating Expression of miR-29b-3p/ULK1
Nannan QIAN ; Wenming YANG ; Taohua WEI ; Lulu TANG ; Hailin JIANG ; Wenjie HAO ; Yulong YANG ; Shuaishuai ZHANG ; Sheng HU
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(2):17-25
ObjectiveTo explore the mechanism and pathway of Gandou Fumu decoction (GDFMD) in the development of liver fibrosis in Wilson's disease (WD). MethodFirst, 30 TX-j mice were randomly divided into the model group, high-dose, medium-dose, and low-dose GDFMD groups, and penicillamine group, with six mice in each group, and another six wild-type mice were used as the normal group. The high-dose, medium-dose, and low-dose GDFMD groups were intragastrically administered drugs of 13.92, 6.96, 3.48 g·kg-1. In the penicillamine group, 0.1 g·kg-1 of penicillamine was given by intragastric administration. The model group and the normal group were given equal volume of normal saline, once a day, for four consecutive weeks. Samples were collected four weeks after gavage, and enzyme-linked immunosorbent assay (ELISA) was used to detect type Ⅲ procollagen peptide (PCⅢ), collagen type Ⅳ (Col Ⅳ), hyaluronic acid (HA), and laminin (LN). Hematoxylin-eosin (HE), Masson, and picric acid-Sirus red collagen (Sirus Red) staining were used to observe the histopathological changes of liver fibrosis. Real-time fluorescence quantitative polymerase chain reaction (Real-time PCR), immunohistochemistry, and Western blot were used to observe the expressions of α-smooth muscle actin (α-SMA) and collagen type Ⅰ (Col Ⅰ), which were related to the activation of hepatic stellate cells (HSCs). The expression of miR-29b-3p was observed by Real-time PCR. The expression of Unc-51-like kinase 1 (ULK1) and its downstream-related factors were observed by Western blot. The downstream genes of miR-29b-3p were verified by the dual luciferase reporter gene detection method. ResultCompared with the normal group, the four items of liver fibrosis (PCⅢ, Col Ⅳ, HA, and LN) in the model group were significantly abnormal (P<0.01), and the pathology was significantly abnormal. The expression of HSC activation-related indicators including α-SMA and Col Ⅰ, as well as α-SMA mRNA and Col Ⅰ mRNA was up-regulated (P<0.05, P<0.01), and miR-29b-3p expression was down-regulated (P<0.01). ULK1, p-ULK1, autophagy-related gene 13 (Atg13), p-Atg13, Beclin-1, FAK family kinase-interacting protein of 200 kDa (FIP200), activating molecule in BECN1-regulated autophagy protein 1 (AMBKA1), and microtubule-associated protein 1 light chain 3Ⅱ/Ⅰ(LC3Ⅱ/Ⅰ) were up-regulated (P<0.05, P<0.01). p62 protein expression was down-regulated (P<0.01). Compared with the model group, the four items of liver fibrosis in the high-dose, medium-dose, and low-dose GDFMD groups and the penicillamine group were significantly improve (P<0.01), and the pathological conditions were improved. The expression of HSC activation-related indicators including α-SMA and Col Ⅰ, as well as α-SMA mRNA and Col Ⅰ mRNA was down-regulated (P<0.05, P<0.01), and the expression of miR-29b-3p was up-regulated (P<0.01). ULK1, p-ULK1, Atg13, p-Atg13, Beclin-1, FIP200, AMBKA1, and LC3Ⅱ/Ⅰ were down-regulated (P<0.05, P<0.01), and p62 protein expression was up-regulated (P<0.01). The prediction software predicted that there was a binding site between miR-29b-3p and ULK1. The dual-luciferase reporter gene detection method indicated that the luciferase activity of the ULK1-WT plasmid-transfected cell group was reduced when miR-29b-3p mimics were co-cultured (P<0.01). ConclusionGDFMD can regulate ULK1-mediated autophagy by up-regulating miR-29b-3p and further exert its anti-hepatic fibrosis effect in Wilson's disease.
7.Trilogy of drug repurposing for developing cancer and chemotherapy-induced heart failure co-therapy agent.
Xin CHEN ; Xianggang MU ; Lele DING ; Xi WANG ; Fei MAO ; Jinlian WEI ; Qian LIU ; Yixiang XU ; Shuaishuai NI ; Lijun JIA ; Jian LI
Acta Pharmaceutica Sinica B 2024;14(2):729-750
Chemotherapy-induced complications, particularly lethal cardiovascular diseases, pose significant challenges for cancer survivors. The intertwined adverse effects, brought by cancer and its complication, further complicate anticancer therapy and lead to diminished clinical outcomes. Simple supplementation of cardioprotective agents falls short in addressing these challenges. Developing bi-functional co-therapy agents provided another potential solution to consolidate the chemotherapy and reduce cardiac events simultaneously. Drug repurposing was naturally endowed with co-therapeutic potential of two indications, implying a unique chance in the development of bi-functional agents. Herein, we further proposed a novel "trilogy of drug repurposing" strategy that comprises function-based, target-focused, and scaffold-driven repurposing approaches, aiming to systematically elucidate the advantages of repurposed drugs in rationally developing bi-functional agent. Through function-based repurposing, a cardioprotective agent, carvedilol (CAR), was identified as a potential neddylation inhibitor to suppress lung cancer growth. Employing target-focused SAR studies and scaffold-driven drug design, we synthesized 44 CAR derivatives to achieve a balance between anticancer and cardioprotection. Remarkably, optimal derivative 43 displayed promising bi-functional effects, especially in various self-established heart failure mice models with and without tumor-bearing. Collectively, the present study validated the practicability of the "trilogy of drug repurposing" strategy in the development of bi-functional co-therapy agents.
8.Differences in Chemical Composition of Polygonatum cyrtonema Rhizome Before and After Processing Based on UPLC-Q-Exactive Orbitrap MS Analysis
Cuijiao REN ; Yangfei DING ; Jingji LI ; Shuaishuai LI ; Pengfei LI ; Wei ZHANG ; Hongsu ZHAO ; Fengqing XU ; Chuanshan JIN ; Junling LIU
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(24):183-189
ObjectiveUltra performance liquid chromatography-quadrupole-electrostatic field orbitrap high resolution mass spectrometry(UPLC-Q-Exactive Orbitrap MS) was used to analyze the differences in chemical components between raw products and wine-processed products of Polygonatum cyrtonema rhizome. MethodUPLC-Q-Exactive Orbitrap MS was used to analyze the chemical compositions of P. cyrtonema rhizome before and after processing, and the effective response ions were extracted after raw data processing, and the differential compounds before and after processing were screened combined with multivariate statistical analysis and according to the conditions of variable importance in the projection(VIP) value>1, P<0.05, fold change(FC)>2 or FC<0.5, based on the retention time, quasi-molecular ions, fragment ions and other information, the components were identified in combination with the control products and the literature, and the significant difference compounds were identified by clustering thermal analysis and relative quantitative analyzed, in order to clarify the change rule of the main components in P. cyrtonema rhizome before and after processing. ResultA total of 72 differential constituents between raw products and wine-processed products were identified, including 15 alkaloids, 12 organic acids, 12 amino acids, 6 flavonoids, 4 saccharides and 23 others. There were a total of 18 significantly different components, among which 13 compounds, including L-malic acid, lactic acid and 9,12,13-trihydroxy-10-octadecenoic acid, showed an increasing trend in content after wine processing, 5 compounds such as trans-3-indoleacrylic acid, L-arginine, D-tryptophan, showed a decreasing trend after processing. ConclusionThe chemical components of P. cyrtonema rhizome are significantly different before and after processing, mainly organic acids, saccharides, amino acids, flavonoids and alkaloids, which can lay the foundation for the in-depth study of the processing mechanism of Polygonati Rhizoma.
9.Construction and application of knowledge graph of Treatise on Febrile Diseases
Dongbo LIU ; Changfa WEI ; Shuaishuai XIA ; Junfeng YAN
Digital Chinese Medicine 2022;5(4):394-405
Objective:
To establish the knowledge graph of “disease-syndrome-symptom-method-formula” in Treatise on Febrile Diseases (Shang Han Lun,《伤寒论》) for reducing the fuzziness and uncertainty of data, and for laying a foundation for later knowledge reasoning and its application.
Methods:
Under the guidance of experts in the classical formula of traditional Chinese medicine (TCM), the method of “top-down as the main, bottom-up as the auxiliary” was adopted to carry out knowledge extraction, knowledge fusion, and knowledge storage from the five aspects of the disease, syndrome, symptom, method, and formula for the original text of Treatise on Febrile Diseases, and so the knowledge graph of Treatise on Febrile Diseases was constructed. On this basis, the knowledge structure query and the knowledge relevance query were realized in a visual manner.
Results:
The knowledge graph of “disease-syndrome-symptom-method-formula” in the Treatise on Febrile Diseases was constructed, containing 6 469 entities and 10 911 relational triples, on which the query of entities and their relationships can be carried out and the query result can be visualized.
Conclusion
The knowledge graph of Treatise on Febrile Diseases systematically realizes its digitization of the knowledge system, and improves the completeness and accuracy of the knowledge representation, and the connection between “disease-syndrome-symptom-treatment-formula”, which is conducive to the sharing and reuse of knowledge can be obtained in a clear and efficient way.
10.Cucurbitacin B-induced G2/M cell cycle arrest of conjunctival melanoma cells mediated by GRP78-FOXM1-KIF20A pathway.
Jinlian WEI ; Xin CHEN ; Yongyun LI ; Ruoxi LI ; Keting BAO ; Liang LIAO ; Yuqing XIE ; Tiannuo YANG ; Jin ZHU ; Fei MAO ; Shuaishuai NI ; Renbing JIA ; Xiaofang XU ; Jian LI
Acta Pharmaceutica Sinica B 2022;12(10):3861-3876
Conjunctival melanoma (CM) is a rare and fatal malignant eye tumor. In this study, we deciphered a novel anti-CM mechanism of a natural tetracyclic compound named as cucurbitacin B (CuB). We found that CuB remarkably inhibited the proliferation of CM cells including CM-AS16, CRMM1, CRMM2 and CM2005.1, without toxicity to normal cells. CuB can also induce CM cells G2/M cell cycle arrest. RNA-seq screening identified KIF20A, a key downstream effector of FOXM1 pathway, was abolished by CuB treatment. Further target identification by activity-based protein profiling chemoproteomic approach revealed that GRP78 is a potential target of CuB. Several lines of evidence demonstrated that CuB interacted with GRP78 and bound with a K d value of 0.11 μmol/L. Furthermore, ATPase activity evaluation showed that CuB suppressed GRP78 both in human recombinant GRP78 protein and cellular lysates. Knockdown of the GRP78 gene significantly induced the downregulation of FOXM1 and related pathway proteins including KIF20A, underlying an interesting therapeutic perspective. Finally, CuB significantly inhibited tumor progression in NCG mice without causing obvious side effects in vivo. Taken together, our current work proved that GRP78-FOXM1-KIF20A as a promising pathway for CM therapy, and the traditional medicine CuB as a candidate drug to hinder this pathway.

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