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  1. Article ; Online: Suppression of hypoxia-induced CAV1 autophagic degradation enhances nanoalbumin-paclitaxel transcytosis and improves therapeutic activity in pancreatic cancer.

    Bai, Xiangli / Xiong, Jia / Li, Lin / Yu, Chao / Sun, Chengyi

    European journal of pharmacology

    2024  Volume 969, Page(s) 176431

    Abstract: Nanoalbumin-paclitaxel (nab-paclitaxel) is a standard chemotherapy for pancreatic cancer but has shown limited efficacy. However, the mechanism through which circulating nab-paclitaxel passes through the tumour vascular endothelium has not been ... ...

    Abstract Nanoalbumin-paclitaxel (nab-paclitaxel) is a standard chemotherapy for pancreatic cancer but has shown limited efficacy. However, the mechanism through which circulating nab-paclitaxel passes through the tumour vascular endothelium has not been determined. In our study, a new nonradioactive and highly sensitive method for analysing nab-paclitaxel transcytosis was established. Based on these methods, we found that hypoxia significantly enhanced the autophagic degradation of CAV1 and therefore attenuated caveolae-mediated nab-paclitaxel transcytosis across endothelial cells (ECs). In a proof-of-concept experiment, higher levels of CAV1, accompanied by lower levels of LC3B, were observed in the vascular endothelium of pancreatic cancer tissues collected from patients who showed a good response to nab-paclitaxel compared with those from patients who showed a poor response to nab-paclitaxel. Furthermore, both in vivo and in vitro studies confirmed that suppressing the autophagic degradation of CAV1 via EC-specific ATG5 knockdown or hydroxychloroquine sulfate (HCQ) treatment significantly enhanced nab-paclitaxel translocation across the endothelial barrier into pancreatic cancer cells and amplified the inhibitory effect of nab-paclitaxel on pancreatic tumour growth. The stimulation of CAV1 expression by EC-specific overexpression of exogenous CAV1 or administration of gemcitabine hydrochloride (GE) had the same effect. These results demonstrated that suppressing CAV1 autophagic degradation is a novel translatable strategy for enhancing nab-paclitaxel chemotherapeutic activity in the treatment of pancreatic cancer.
    MeSH term(s) Humans ; Deoxycytidine/therapeutic use ; Endothelial Cells/pathology ; Pancreatic Neoplasms/drug therapy ; Pancreatic Neoplasms/pathology ; Paclitaxel/pharmacology ; Albumins/pharmacology ; Transcytosis ; Antineoplastic Combined Chemotherapy Protocols/therapeutic use
    Chemical Substances Deoxycytidine (0W860991D6) ; Paclitaxel (P88XT4IS4D) ; Albumins
    Language English
    Publishing date 2024-02-22
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 80121-5
    ISSN 1879-0712 ; 0014-2999
    ISSN (online) 1879-0712
    ISSN 0014-2999
    DOI 10.1016/j.ejphar.2024.176431
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Exosomal miR-125b-5p derived from cancer-associated fibroblasts promotes the growth, migration, and invasion of pancreatic cancer cells by decreasing adenomatous polyposis coli (APC) expression.

    Guo, Yuting / Li, Haiyang / Sun, Chengyi

    Journal of gastrointestinal oncology

    2023  Volume 14, Issue 2, Page(s) 1064–1076

    Abstract: Background: A significant desmoplastic response, particularly in the fibroblasts, is a characteristic of pancreatic ductal adenocarcinoma (PDAC). Increasing evidence has shown that cancer-associated fibroblasts (CAFs) assist tumor development, invasion, ...

    Abstract Background: A significant desmoplastic response, particularly in the fibroblasts, is a characteristic of pancreatic ductal adenocarcinoma (PDAC). Increasing evidence has shown that cancer-associated fibroblasts (CAFs) assist tumor development, invasion, and metastasis in PDAC. However, CAFs-derived molecular determinants that regulate the molecular mechanisms of PDAC have not been fully characterized.
    Methods: The expression of microRNA 125b-5p (miR-125b-5p) in Pancreas Cancer (PC) tissue and para-cancerous normal tissue was examined using Polymerase Chain Reaction (PCR). Cell counting kit-8 (CCK8), wound healing, and transwell experiments were utilized to assess the effect of miR-125b-5p. Using a cell luciferase activity test and bioinformatics, it was demonstrated that miR-125b-5p may bind to the 3'-untranslated region (3'-UTR) of the adenomatous polyposis coli (APC), thereby limiting the progression of pancreatic cancer.
    Results: PDAC cells are prompted to proliferate, undergo the epithelial-mesenchymal transition (EMT), and spread. Importantly, CAFs release exosomes into PDAC cells, which significantly increase the level of miR-125b-5p in those cells. Meanwhile, pancreatic cancer cell lines and PDAC tissues have considerably higher miR-125b-5p expression. MiR-125b-5p's elevated expression mechanically suppresses the expression of APC and accelerates the spread of pancreatic cancer.
    Conclusions: Exosomes released by CAFs promote PDAC growth, invasion, and metastasis. Exosomal miR-125b-5p inhibition offers an alternate strategy for combating the basic malady of PDAC.
    Language English
    Publishing date 2023-04-23
    Publishing country China
    Document type Journal Article
    ZDB-ID 2594644-4
    ISSN 2219-679X ; 2078-6891
    ISSN (online) 2219-679X
    ISSN 2078-6891
    DOI 10.21037/jgo-23-198
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  3. Article: Determination of the microscopic acid dissociation constant of piperacillin and identification of dissociated molecular forms.

    Li, Guoao / Wang, Yaling / Sun, Chengyi / Liu, Fei

    Frontiers in chemistry

    2023  Volume 11, Page(s) 1177128

    Abstract: ... For ... ...

    Abstract For amphoteric
    Language English
    Publishing date 2023-04-26
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2711776-5
    ISSN 2296-2646
    ISSN 2296-2646
    DOI 10.3389/fchem.2023.1177128
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  4. Article ; Online: Expression of Myomaker and Myomerger in myofibers causes muscle pathology.

    Witcher, Phillip C / Sun, Chengyi / Millay, Douglas P

    Skeletal muscle

    2023  Volume 13, Issue 1, Page(s) 8

    Abstract: Background: Skeletal muscle development and regeneration depend on cellular fusion of myogenic progenitors to generate multinucleated myofibers. These progenitors utilize two muscle-specific fusogens, Myomaker and Myomerger, which function by remodeling ...

    Abstract Background: Skeletal muscle development and regeneration depend on cellular fusion of myogenic progenitors to generate multinucleated myofibers. These progenitors utilize two muscle-specific fusogens, Myomaker and Myomerger, which function by remodeling cell membranes to fuse to each other or to existing myofibers. Myomaker and Myomerger expression is restricted to differentiating progenitor cells as they are not detected in adult myofibers. However, Myomaker remains expressed in myofibers from mice with muscular dystrophy. Ablation of Myomaker from dystrophic myofibers results in reduced membrane damage, leading to a model where persistent fusogen expression in myofibers, in contrast to myoblasts, is harmful.
    Methods: Dox-inducible transgenic mice were developed to ectopically express Myomaker or Myomerger in the myofiber compartment of skeletal muscle. We quantified indices of myofiber membrane damage, such as serum creatine kinase and IgM
    Results: Myomaker or Myomerger expression in myofibers independently caused membrane damage at acute time points. This damage led to muscle pathology, manifesting with centrally nucleated myofibers and muscle atrophy. Dual expression of both Myomaker and Myomerger in myofibers exacerbated several aspects of muscle pathology compared to expression of either fusogen by itself.
    Conclusions: These data reveal that while myofibers can tolerate some level of Myomaker and Myomerger, expression of a single fusogen above a threshold or co-expression of both fusogens is damaging to myofibers. These results explain the paradigm that their expression in myofibers can have deleterious consequences in muscle pathologies and highlight the need for their highly restricted expression during myogenesis and fusion.
    MeSH term(s) Mice ; Animals ; Membrane Proteins/metabolism ; Muscle Proteins/metabolism ; Muscle, Skeletal/metabolism ; Myoblasts/metabolism ; Mice, Transgenic ; Muscle Development/physiology
    Chemical Substances Membrane Proteins ; Muscle Proteins ; myomaker protein, mouse
    Language English
    Publishing date 2023-05-01
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 2595637-1
    ISSN 2044-5040 ; 2044-5040
    ISSN (online) 2044-5040
    ISSN 2044-5040
    DOI 10.1186/s13395-023-00317-z
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  5. Article ; Online: Transcription factor KLF9 inhibits the proliferation, invasion, and migration of pancreatic cancer cells by repressing KIAA1522.

    Guo, Yuting / Tian, She / Li, Haiyang / Zuo, Shi / Yu, Chao / Sun, Chengyi

    Asia-Pacific journal of clinical oncology

    2024  

    Abstract: Aim: Pancreatic cancer (PC) has a poor prognosis and high mortality. Kruppel-like factor 9 (KLF9), a transcription factor, is aberrantly expressed in various neoplasms. The current study sought to analyze the functional role of KLF9 in the proliferation, ...

    Abstract Aim: Pancreatic cancer (PC) has a poor prognosis and high mortality. Kruppel-like factor 9 (KLF9), a transcription factor, is aberrantly expressed in various neoplasms. The current study sought to analyze the functional role of KLF9 in the proliferation, invasion, and migration of PC cells.
    Methods: The expression patterns of KLF9 and KIAA1522 in normal pancreatic cells (HPDE-C7) and PC cells (Panc 03.27, BxPc3, SW1990) were determined by real-time quantitative polymerase chain reaction and Western blot assay. After treatment of KLF9 overexpression, proliferation, invasion, and migration were evaluated by cell counting kit-8, 5-ethynyl-2'-deoxyuridine staining, and Transwell assays. The binding of KLF9 to the KIAA1522 promoter was analyzed by dual-luciferase assay and chromatin immunoprecipitation. The rescue experiment was conducted to analyze the role of KIAA1522.
    Results: KLF9 was downregulated, while KIAA1522 was upregulated in PC cells. KLF9 overexpression mitigated the proliferation, invasion, and migration of PC cells. Enrichment of KLF9 led to inhibition of the KIAA1522 promoter and repressed KIAA1522 expression. KIAA1522 overexpression neutralized the inhibitory role of KLF9 in PC cell functions.
    Conclusion: KLF9 is enriched in the KIAA1522 promoter and negatively regulates KIAA1522 expression, thereby mitigating the proliferation, invasion, and migration of PC cells.
    Language English
    Publishing date 2024-03-23
    Publishing country Australia
    Document type Journal Article
    ZDB-ID 2187409-8
    ISSN 1743-7563 ; 1743-7555
    ISSN (online) 1743-7563
    ISSN 1743-7555
    DOI 10.1111/ajco.14048
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  6. Article ; Online: Tenogenic differentiation of human tendon-derived stem cells induced by long non-coding RNA LINCMD1 via miR-342-3p/EGR1 axis.

    Qu, Feng / Shen, Xuezhen / Wang, Ketao / Sun, Chengyi / Li, Pengfei

    Connective tissue research

    2023  Volume 64, Issue 5, Page(s) 479–490

    Abstract: Background: Tendon-derived stem cells (TDSCs) are proposed as a potential cell-seed for the treatment of tendon injury due to their tenogenic differentiation potential. In this work, we defined the action of long non-coding RNA (lncRNA) muscle ... ...

    Abstract Background: Tendon-derived stem cells (TDSCs) are proposed as a potential cell-seed for the treatment of tendon injury due to their tenogenic differentiation potential. In this work, we defined the action of long non-coding RNA (lncRNA) muscle differentiation 1 (LINCMD1) in tenogenic differentiation of human TDSCs (hTDSCs).
    Methods: Quantitative real-time PCR (qRT-PCR) was used to assess the levels of LINCMD1, microRNA (miR)-342-3p, and early growth response-1 (EGR1) mRNA. Cell proliferation was detected by the XTT colorimetric assay. Protein expression was quantified by western blot. hTDSCs were grown in an osteogenic medium to induce osteogenic differentiation, and the extent of osteogenic differentiation was assessed by Alizarin Red Staining (ARS). The activity of alkaline phosphatase (ALP) was measured by the ALP Activity Assay Kit. Dual-luciferase reporter and RNA immunoprecipitation (RIP) assays were used to evaluate the direct relationship between miR-342-3p and LINCMD1 or EGR1.
    Results: Our results showed that enforced expression of LINCMD1 or suppression of miR-342-3p accelerated the proliferation and tenogenic differentiation and reduced osteogenic differentiation of hTDSCs. LINCMD1 regulated miR-342-3p expression by binding to miR-342-3p. EGR1 was identified as a direct and functional target of miR-342-3p, and knockdown of EGR1 reversed the effects of miR-342-3p suppression on cell proliferation and tenogenic and osteogenic differentiation. Furthermore, the miR-342-3p/EGR1 axis mediated the regulation of LINCMD1 on hTDSC proliferation and tenogenic and osteogenic differentiation.
    Conclusion: Our study suggests the induction of LINCMD1 in tenogenic differentiation of hTDSCs through miR-342-3p/EGR1 axis.
    MeSH term(s) Humans ; RNA, Long Noncoding/genetics ; RNA, Long Noncoding/metabolism ; MicroRNAs/genetics ; MicroRNAs/metabolism ; Osteogenesis/genetics ; Stem Cells/metabolism ; Cell Differentiation/genetics ; Tendons/metabolism ; Cells, Cultured ; Early Growth Response Protein 1/genetics ; Early Growth Response Protein 1/metabolism
    Chemical Substances RNA, Long Noncoding ; MicroRNAs ; EGR1 protein, human ; Early Growth Response Protein 1 ; MIRN342 microRNA, human
    Language English
    Publishing date 2023-06-07
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 185551-7
    ISSN 1607-8438 ; 0091-1690 ; 0300-8207
    ISSN (online) 1607-8438
    ISSN 0091-1690 ; 0300-8207
    DOI 10.1080/03008207.2023.2217258
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  7. Article: [Clinical effect and safety of filiform-fire needle in treatment of peripheral facial paralysis: a Meta-analysis].

    Sun, Cheng-Yi / Yuan, Ying / Yan, Shi-Yan

    Zhen ci yan jiu = Acupuncture research

    2022  Volume 47, Issue 3, Page(s) 274–281

    Abstract: Objective: To systematically evaluate the clinical effect and safety of filiform-fire needle in the treatment of peripheral facial paralysis at different stages.: Methods: Articles of the randomized controlled clinical trials (RCTs) about filiform ... ...

    Abstract Objective: To systematically evaluate the clinical effect and safety of filiform-fire needle in the treatment of peripheral facial paralysis at different stages.
    Methods: Articles of the randomized controlled clinical trials (RCTs) about filiform fire needle treatment of peripheral facial paralysis published from the inception of the databases of CNKI, Wanfang, VIP, SinoMed, PubMed, Embase and Cochrane Library to December 20th, 2021 were retrieved first. The Cochrane Handbook 5.1 system was used to extract data and evaluate the quality (risk of bias) of the included papers. The overall effective rate, cure rate, Sunnybrook facial nerve function score, facial disability index scale, physical and social function score and related adverse reactions were used as the outcome indicators. The RevMan5.3 software was used for heterogeneity test and Meta-analysis was performed on papers with little clinical heterogeneity.
    Results: A total of eligible 9 RCTs were included, involving 519 patients. The results of Meta-analysis showed that: compared with the conventional acupuncture therapy, the filiform fire needle in the treatment of peripheral facial paralysis had significant advantages in raising the overall effective rate (
    Conclusion: Filiform fire needle is superior to conventional acupuncture in the treatment of facial paralysis in all stages, but its reliability is limited due to fewer high-quality literature with scientific and rigorous methods and trial designs. Therefore, more large-sample and high-quality RCT studies are warranted for further verification.
    MeSH term(s) Acupuncture Therapy/methods ; Facial Paralysis/therapy ; Humans ; Needles
    Language Chinese
    Publishing date 2022-03-23
    Publishing country China
    Document type Journal Article ; Meta-Analysis
    ZDB-ID 1283179-7
    ISSN 1000-0607
    ISSN 1000-0607
    DOI 10.10372/j.1000-0607.20210559
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  8. Article ; Online: The hepatoprotective effect from ischemia-reperfusion injury of remote ischemic preconditioning in the liver related surgery: a meta-analysis.

    Wu, Jinli / Yu, Chao / Zeng, Xianggang / Sun, Chengyi

    ANZ journal of surgery

    2021  Volume 92, Issue 6, Page(s) 1332–1337

    Abstract: Background: This study aimed to assess the hepatoprotective effect of remote ischemic preconditioning (RIPC) in the liver related surgery.: Methods: Published articles in PubMed, Embase and Cochrane clinical trial databases were searched from the ... ...

    Abstract Background: This study aimed to assess the hepatoprotective effect of remote ischemic preconditioning (RIPC) in the liver related surgery.
    Methods: Published articles in PubMed, Embase and Cochrane clinical trial databases were searched from the inception to May 2021. Randomized control trials (RCTs) comparing the RIPC with control or other conditionings were included for analysis. The postoperative liver synthetic function was used as the primary outcome.
    Results: A total of six RCTs were included the present meta-analysis. There were 216 patients underwent RIPC and 212 patients in the control group. The RIPC group had a significantly lower level of postoperative alanine transaminase and aspartate transaminase (p<0.001). The postoperative bilirubin level was also significant lower in the RIPC group than the control group (MD = -9.0, 95%CI, -13.94 to -4.03; p<0.001). ICG clearance was reduced in controls versus RIPC (p<0.001). There was no significant difference between the RIPC and control group in terms of the complication rate.
    Conclusion: The RIPC was evaluated to have a strong hepatoprotective effect from ischemia-reperfusion injury in the liver related surgery.
    MeSH term(s) Humans ; Ischemic Preconditioning ; Liver/surgery ; Reperfusion Injury/etiology ; Reperfusion Injury/prevention & control
    Language English
    Publishing date 2021-12-02
    Publishing country Australia
    Document type Journal Article ; Meta-Analysis ; Review
    ZDB-ID 2050749-5
    ISSN 1445-2197 ; 1445-1433 ; 0004-8682
    ISSN (online) 1445-2197
    ISSN 1445-1433 ; 0004-8682
    DOI 10.1111/ans.17236
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  9. Article ; Online: Investigation on chain segment motions of various starch molecules under different glycerol-water system.

    Mei, Liping / Zhu, Zhijie / Wang, Caihong / Sun, Chengyi / Chen, Peirong / Cai, Huimei / Chen, Xu / Du, Xianfeng

    International journal of biological macromolecules

    2024  Volume 259, Issue Pt 1, Page(s) 129247

    Abstract: The molecular motion of starch at different glycerol concentrations (0, 20, 50, and 80 %) was investigated using Electron Paramagnetic Resonance (EPR) spectroscopy. Fourier-transform infrared (FTIR) spectroscopy ... ...

    Abstract The molecular motion of starch at different glycerol concentrations (0, 20, 50, and 80 %) was investigated using Electron Paramagnetic Resonance (EPR) spectroscopy. Fourier-transform infrared (FTIR) spectroscopy and
    MeSH term(s) Starch/chemistry ; Glycerol ; Water ; Electron Spin Resonance Spectroscopy/methods ; Amylose/chemistry ; Spin Labels ; Amylopectin
    Chemical Substances Starch (9005-25-8) ; Glycerol (PDC6A3C0OX) ; Water (059QF0KO0R) ; Amylose (9005-82-7) ; Spin Labels ; Amylopectin (9037-22-3)
    Language English
    Publishing date 2024-01-08
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 282732-3
    ISSN 1879-0003 ; 0141-8130
    ISSN (online) 1879-0003
    ISSN 0141-8130
    DOI 10.1016/j.ijbiomac.2024.129247
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  10. Article: CAV2 Regulates Mir-4723/Wnt7A Signalling Axis through Endocytosis and Epithelial-Mesenchymal Transition to Promote Proliferation, Invasion, and Metastasis of Pancreatic Cancer Cells.

    Li, Dan / Guo, Yuting / Tian, She / Zhu, Changhao / Sun, Chengyi

    Journal of Cancer

    2022  Volume 13, Issue 7, Page(s) 2200–2212

    Abstract: Background: ...

    Abstract Background:
    Language English
    Publishing date 2022-04-04
    Publishing country Australia
    Document type Journal Article
    ZDB-ID 2573318-7
    ISSN 1837-9664
    ISSN 1837-9664
    DOI 10.7150/jca.69617
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