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1.
Altern Ther Health Med ; 30(1): 446-453, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-37820675

RESUMEN

Objective: Oxaliplatin is a first-line chemotherapy drug for the treatment of colorectal cancer, but its induced oxaliplatin-induced peripheral neurotoxicity (OIPN) affect the chemotherapy process and quality of life of tumor patients. OIPN is a serious and potentially permanent side effect of cancer treatment. Currently, no unified standard has been established for preventing and treating OIPN in Western medicine. Therefore, it is very important to seek effective prevention and treatment measures. Many clinical trials have reported that Huangqi Guizhi Wuwu decoction can effectively prevent OIPN, but substantial evidence base to support this treatment is lacking. We collected existing literature and evaluated the clinical efficacy and safety of Huangqi Guizhi Wuwu decoction for OIPN by performing a meta-analysis. Methods: We systematically searched China National Knowledge Internet (CNKI), VIP, Wan Fang Database, Pubmed, EMBASE, and Cochrane Library from inception through to Oct 2022 to identify only randomized controlled trials examining the prevention of OIPN using Huangqi Guizhi Wuwu decoction. This search was supplemented by manual retrieval, including dissertations and conference papers. All data were analyzed using RevMan 5.3 software. Results: A total of 18 papers involving 564 patients in the treatment group and 523 patients in the control group were included. A total of 17 articles reported the overall incidence of peripheral neurotoxicity (I² = 0%), and the overall incidence of peripheral neurotoxicity in the treatment group was 0.27 times higher than in the control group (95% CI: 0.20-0.36). A total of 16 articles reported the incidence of level III-IV severe peripheral neurotoxicity (I² = 0%), which was 0.16 times higher in the treatment group than in the control group (95% CI: 0.09-0.32). In the Huangqi Guizhi Wuwu VS no-interference subgroup, it showed that the incidence of severe peripheral neurotoxicity in the treat group was significantly lower than in the control group (OR:0.13, 95% CI:0.06-0.28). But in the Huangqi Guizhi Wuwu VS west medicine therapy subgroup, no significant difference between Huangqi Quizhi Wuwu and conventional Western medicine was observed for the prevention and treatment of severe OIPN (OR:0.37, 95% CI:0.09-1.53). A total of 2 articles were reported median nerve conduction velocity (I² = 51.2%); and no significant difference was found between the treatment and control groups (SMD: 1.43; 95% CI: 0.80-2.08); 4 studies showed Huangqi Guizhi Wuwu decoction did not increase the incidence of chemotherapy-related adverse reactions and was safe. Conclusions: Our current findings support the application of Huangqi Guizhi Wuwu decoction for the clinical prevention and treatment of patients with OIPN. However, high-quality RCT research is still needed to further exploration. The potential impact of Huangqi Guizhi Wuwu decoction on the quality of life or treatment compliance of cancer patients needs further research.


Asunto(s)
Astragalus propinquus , Medicamentos Herbarios Chinos , Calidad de Vida , Humanos , Oxaliplatino/efectos adversos , Medicamentos Herbarios Chinos/uso terapéutico , Resultado del Tratamiento
2.
BMC Cancer ; 23(1): 1109, 2023 Nov 14.
Artículo en Inglés | MEDLINE | ID: mdl-37964212

RESUMEN

BACKGROUND: Current chemotherapy-induced peripheral neuropathy (CIPN) assessment tools mostly have poor sensitivity and weak anti-interference, so that it is sometimes difficult to provide substantive guidance for clinical intervention. This study aimed to develop an assessment tool dedicated for oxaliplatin to address these limitations. METHODS: This study screened 445 OIPN-related literatures for producing a symptom list, and developed the questionnaire module through expert supplement, item generation, content correlation analysis, pre-testing, and item improvement. The validation phase used a Chinese population-based prospective cohort study from June 2021 to July 2022. Patients were requested to complete the tested questionnaire, QLQ-CIPN20 and the CTCAE grading one day before cycles 2-6 of chemotherapy. Cronbach's α coefficient and intraclass correlation coefficient (ICC) were calculated for the internal consistency and stability analysis, respectively. Exploratory factor analysis was conducted to investigate the construct validity. The correlations among the tested questionnaire, QLQ-CIPN20 and CTCAE were compared for the criterion validity analysis. Wilcoxon signed-rank sum test was utilized to compare the sensitivity between the tested questionnaire and QLQ-CIPN20. RESULT: A 20-item CIPN assessment tool named chemotherapy-induced peripheral neuropathy integrated assessment - oxaliplatin subscale (CIPNIA-OS) was developed. The validation phase included 186 patients. Cronbach's α coefficient of CIPNIA-OS was 0.764 (> 0.7), and ICC was 0.997 (between 0.9 and 1). The structure of CIPNIA-OS containing seven factors was examined. The correlation coefficient between CIPNIA-OS and CTCAE was 0.661 (95%CI 0.623 to 0.695), which was significantly higher than that between QLQ-CIPN20 and CTCAE (0.417, 95%CI 0.363 to 0.469, p < 0.01). Besides, the total score of CIPNIA-OS was mostly higher than QLQ-CIPN20, with an average difference of 2.189 (CI 95% 2.056 to 2.322), and the difference gradually expanded with the progress of chemotherapy (p < 0.05). CONCLUSION: This study developed an original CIPN questionnaire which was dedicated for OIPN assessment. It was a comprehensive tool that covered acute OIPN symptoms and integrated features from several proven CIPN assessment tools. The validation results supported that CIPNIA-OS had satisfactory reliability, stability, construct, criterion validity, and was more accuracy and sensitive than QLQ-CIPN20 in the evaluation of OIPN.


Asunto(s)
Antineoplásicos , Neoplasias , Enfermedades del Sistema Nervioso Periférico , Humanos , Oxaliplatino/efectos adversos , Antineoplásicos/efectos adversos , Neoplasias/tratamiento farmacológico , Reproducibilidad de los Resultados , Estudios Prospectivos , Calidad de Vida , Enfermedades del Sistema Nervioso Periférico/inducido químicamente , Enfermedades del Sistema Nervioso Periférico/diagnóstico , Enfermedades del Sistema Nervioso Periférico/tratamiento farmacológico
3.
BMC Cancer ; 22(1): 122, 2022 Jan 29.
Artículo en Inglés | MEDLINE | ID: mdl-35093005

RESUMEN

BACKGROUND: The incidence of early-onset colorectal cancer (EOCRC) is increasing at an alarming rate and further studies are needed to identify risk factors and to develop prevention strategies. METHODS: Risk factors significantly associated with EOCRC were identified using meta-analysis. An individual risk appraisal model was constructed using the Rothman-Keller model. Next, a group of random data sets was generated using the binomial distribution function method, to determine nodes of risk assessment levels and to identify low, medium, and high risk populations. RESULTS: A total of 32,843 EOCRC patients were identified in this study, and nine significant risk factors were identified using meta-analysis, including male sex, Caucasian ethnicity, sedentary lifestyle, inflammatory bowel disease, and high intake of red meat and processed meat. After simulating the risk assessment data of 10,000 subjects, scores of 0 to 0.0018, 0.0018 to 0.0036, and 0.0036 or more were respectively considered as low-, moderate-, and high-risk populations for the EOCRC population based on risk trends from the Rothman-Keller model. CONCLUSION: This model can be used for screening of young adults to predict high risk of EOCRC and will contribute to the primary prevention strategies and the reduction of risk of developing EOCRC.


Asunto(s)
Reglas de Decisión Clínica , Neoplasias Colorrectales/epidemiología , Neoplasias Colorrectales/etiología , Detección Precoz del Cáncer/métodos , Medición de Riesgo/métodos , Adulto , Femenino , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Factores de Riesgo , Adulto Joven
4.
J Peripher Nerv Syst ; 26(1): 35-42, 2021 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-33462873

RESUMEN

Oxaliplatin-induced peripheral neuropathy (OIPN) is a common and dose-limiting toxic effect that markedly limits the use of oxaliplatin and affects the quality of life. Although it is common, the underlying mechanisms of OIPN remain ambiguous. Recent studies have shown that the platinum accumulation in peripheral nervous system, especially in dorsal root ganglion, is a significant mechanism of OIPN. Several specific transporters, including organic cation transporters, high-affinity copper uptake protein1 (CTR1), ATPase copper transporting alpha (ATP7A) and multidrug and toxin extrusion protein 1 (MATE1), could be associated with this mechanism. This review summarizes the current research progress about the relationship between platinum accumulation and OIPN, as well as suggests trend for the future research.


Asunto(s)
Antineoplásicos/toxicidad , Ganglios Espinales/efectos de los fármacos , Ganglios Espinales/metabolismo , Intoxicación del Sistema Nervioso por Metales Pesados/metabolismo , Síndromes de Neurotoxicidad/metabolismo , Oxaliplatino/toxicidad , Enfermedades del Sistema Nervioso Periférico/inducido químicamente , Enfermedades del Sistema Nervioso Periférico/metabolismo , Platino (Metal)/metabolismo , Humanos
5.
Support Care Cancer ; 29(12): 7461-7469, 2021 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-34085148

RESUMEN

BACKGROUND: To identify the association between diabetes mellitus (DM) and the risk of chemotherapy-induced peripheral neuropathy (CIPN) through a systematic review and meta-analysis. METHODS: An electronic literature search was conducted in PubMed, Embase, Web of Science, the Wanfang database, the VIP Journals database (CQVIP), the China National Knowledge Infrastructure (CNKI) database, and the China Biology Medicine database (Sinomed) between January 2010 and January 2021. Articles were included if they investigated CIPN and DM. Stata 15.1 was used to analyze the data. RESULTS: We examined 8923 cancer patients from 25 studies comprising 9 cohort studies and 16 case-control studies. Meta-analysis showed that there was a statistically significant positive correlation between DM and CIPN (odds ratio [OR] = 1.60, 95% confidence interval [CI] = 1.38-1.85, P < 0.001). Egger's test (P = 0.824) showed no evidence of publication bias. The positive associations did not significant differ by study type, study quality, evaluation instrument, and type of antineoplastic drug. Omission of any single study had little effect on the combined risk estimate. Little evidence of heterogeneity was observed. CONCLUSION: This meta-analysis provides evidence of a significant positive association between DM and risk of CIPN. Furthermore, a more detailed evaluation is warranted for cancer patients with diabetes when they are treated with antineoplastic drugs that have the potential to cause peripheral neuropathy.


Asunto(s)
Antineoplásicos , Diabetes Mellitus , Enfermedades del Sistema Nervioso Periférico , Antineoplásicos/efectos adversos , Diabetes Mellitus/inducido químicamente , Diabetes Mellitus/epidemiología , Humanos , Oportunidad Relativa , Enfermedades del Sistema Nervioso Periférico/inducido químicamente , Enfermedades del Sistema Nervioso Periférico/epidemiología , Factores de Riesgo
6.
J Integr Neurosci ; 19(4): 663-671, 2020 Dec 30.
Artículo en Inglés | MEDLINE | ID: mdl-33378840

RESUMEN

The effects of Danggui Sini decoction on peripheral neuropathy in oxaliplatin-induced peripheral is established. The results indicated that Danggui Sini decoction treatment significantly reduced the current amplitude of dorsal root ganglia cells undergoing agonists stimuli compared to the model-dorsal root ganglia group (P < 0.05). Danggui Sini decoction treatment significantly inhibited the inflammatory response of dorsal root ganglia cells compared to the model-dorsal root ganglia group (P < 0.05). Danggui Sini decoction treatment significantly enhanced the amounts of Nissl bodies in dorsal root ganglia cells compared to the Model-dorsal root ganglia group (P < 0.05). Danggui Sini decoction treatment improved ultra-microstructures of dorsal root ganglia cells. In conclusion, Danggui Sini decoction protected against neurotoxicity of oxaliplatin-induced peripheral neuropathy in rats by suppressing inflammatory lesions, improving ultra-microstructures, and enhancing amounts of Nissl bodies.


Asunto(s)
Antineoplásicos/toxicidad , Medicamentos Herbarios Chinos/farmacología , Ganglios Espinales/efectos de los fármacos , Síndromes de Neurotoxicidad/prevención & control , Oxaliplatino/toxicidad , Enfermedades del Sistema Nervioso Periférico/inducido químicamente , Enfermedades del Sistema Nervioso Periférico/prevención & control , Animales , Fenómenos Electrofisiológicos/efectos de los fármacos , Masculino , Técnicas de Placa-Clamp , Ratas , Ratas Wistar
7.
Drug Dev Res ; 81(8): 1019-1025, 2020 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-32715509

RESUMEN

BACKGROUND: Curcumol was presented to unleash antitumor effects in a variety of cancers, including gastric cancer. However, the relevance between curcumol and cisplatin resistance in gastric cancer still remains unclear. Therefore, the current research was performed to survey the role of curcumol in cisplatin sensitivity in gastric cancer. METHODS: First, BGC-823 and BGC-823/DDP cells were incubated with cisplatin for 48 hr and 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide (MTT) analysis was applied to determine the inhibition rate of cell proliferation and the half-maximal inhibitory concentration (IC50 ) of cisplatin. In addition, BGC-823 and BGC-823/DDP cells were treated with curcumol for 48 hr followed with detection of cell viability and apoptosis using MTT and flow cytometry assay, respectively. Moreover, MTT analysis was applied to test the effects of curcumol on cisplatin sensitivity in gastric cancer cells. Lastly, Western blot assay and qRT-PCR analysis were utilized to check the functions of curcumol on PI3K/AKT pathway-related markers. RESULTS: We found that BGC-823/DDP cells exhibited stronger resistance to cisplatin compared with BGC-823 cells. Furthermore, curcumol evidently reduced cell proliferation and facilitated cell apoptosis in BGC-823/DDP and BGC-823 cells. Moreover, results from MTT assay demonstrated that curcumol notably promoted the suppression effect of cisplatin and decreased the IC50 of cisplatin in BGC-823/DDP and BGC-823 cells. It was also presented that curcumol suppressed the PI3K/AKT pathway dose-dependently in BGC-823/DDP and BGC-823 cells. CONCLUSION: The findings in the current research demonstrated that curcumol could promote the sensitivity of gastric cancer cells to cisplatin-based chemotherapies via inhibiting the phosphatidylinositol 3-kinase (PI3K)/Protein Kinase B (AKT) pathway.

8.
Microb Pathog ; 118: 61-65, 2018 May.
Artículo en Inglés | MEDLINE | ID: mdl-29530804

RESUMEN

Human gut comprises of a huge mixture of microorganisms as they had co-existed for millions of years. The change in co-existence of microbial genera leads to dysbiosis, which creates several disorders in humans. Diet and diet associated agents can have a considerable influence on host health by regulating the gut microbiome, which can thereby maintain the homeostasis of the gut. Analysis of the gut microbiome and the agents that can have an influence on the gut need a profound understanding, which is the need of the hour. The current review therefore focuses on the influence of diet and dietary nanoparticles on the gut microbiota and their positive or adverse effect.


Asunto(s)
Dieta/efectos adversos , Disbiosis/dietoterapia , Disbiosis/microbiología , Nanopartículas/química , Animales , Bacterias/patogenicidad , Carbohidratos , Dietoterapia , Sistema Digestivo , Heces/microbiología , Hongos/patogenicidad , Microbioma Gastrointestinal/efectos de los fármacos , Tracto Gastrointestinal/microbiología , Humanos , Nanopartículas/administración & dosificación , Material Particulado/farmacología , Simbiosis
9.
Mol Cell Biochem ; 388(1-2): 249-59, 2014 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-24343340

RESUMEN

MicroRNAs (miRNAs, miRs) play important roles in pathogenesis and development of human diseases, including malignancy. Some may affect tumor progression through targeting tumor suppressor genes. MiR-135b has been shown to be upregulated in CRC. In this study, we evaluated the role of miR-135b in colorectal cancer (CRC) and its regulatory role for metastasis suppressor-1 (MTSS1) and its mechanisms. The levels of miR-135b and MTSS1 gene expression in 35 CRC and corresponding cancer-adjacent tissues, 27 colorectal adenoma, and 16 normal tissue samples were quantified using qRT-PCR and western blot analysis. The effect of miR-135b on MTSS1 expression was assessed by miR-135b mimics or inhibitor transfection to deregulate miR-135b expression. The direct interaction between them was verified by 3'-UTR dual-luciferase reporter assay. Furthermore, the roles of miR-135b in regulating CRC cells migration and invasion properties were analyzed with miR-135b mimics or inhibitor-transfected cells and silenced expression of MTSS1 in miR-135b inhibitor transfected cells. CRC tissues showed significantly upregulated miR-135b expression and reduced MTSS1 expression. High miR-135b levels were significantly associated with lymph node and distant metastasis. The miR-135b inhibitor decreased miR-135b expression and caused MTSS1 upregulation at the post-transcriptional level. However, overexpression of miR-135b caused MTSS1 protein downregulation. The 3'-UTR of MTSS1 harbored a binding site for miR-135b. Finally, miR-135b inhibitor-transfected cells exhibited markedly reduced cell migration and invasive abilities, and this effect could be reversed by MTSS1-siRNA. Our results demonstrated that miR-135b downregulated MTSS1 expression and contributed to CRC cell invasion, indicating its involvement in CRC progression.


Asunto(s)
Neoplasias Colorrectales/patología , Metástasis Linfática/patología , MicroARNs/genética , Proteínas de Microfilamentos/genética , Invasividad Neoplásica/genética , Proteínas de Neoplasias/genética , Regiones no Traducidas 3'/genética , Sitios de Unión/genética , Línea Celular Tumoral , Movimiento Celular/genética , Proliferación Celular , Neoplasias Colorrectales/genética , Femenino , Regulación Neoplásica de la Expresión Génica , Células HCT116 , Humanos , Metástasis Linfática/genética , Masculino , MicroARNs/antagonistas & inhibidores , MicroARNs/biosíntesis , Proteínas de Microfilamentos/biosíntesis , Persona de Mediana Edad , Invasividad Neoplásica/patología , Proteínas de Neoplasias/biosíntesis , Interferencia de ARN , ARN Interferente Pequeño , Cicatrización de Heridas/efectos de los fármacos , Cicatrización de Heridas/genética
10.
Crit Rev Oncol Hematol ; 197: 104353, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38615869

RESUMEN

Bortezomib is the first-line standard and most effective chemotherapeutic for multiple myeloma; however, bortezomib-induced peripheral neuropathy (BIPN) severely affects the chemotherapy regimen and has long-term impact on patients under maintenance therapy. The pathogenesis of BIPN is poorly understood, and basic research and development of BIPN management drugs are in early stages. Besides chemotherapy dose reduction and regimen modification, no recommended prevention and treatment approaches are available for BIPN apart from the International Myeloma Working Group guidelines for peripheral neuropathy in myeloma. An in-depth exploration of the pathogenesis of BIPN, development of additional therapeutic approaches, and identification of risk factors are needed. Optimizing effective and standardized BIPN treatment plans and providing more decision-making evidence for clinical diagnosis and treatment of BIPN are necessary. This article reviews the recent advances in BIPN research; provides an overview of clinical features, underlying molecular mechanisms, and therapeutic approaches; and highlights areas for future studies.


Asunto(s)
Antineoplásicos , Bortezomib , Mieloma Múltiple , Enfermedades del Sistema Nervioso Periférico , Humanos , Bortezomib/efectos adversos , Bortezomib/uso terapéutico , Enfermedades del Sistema Nervioso Periférico/inducido químicamente , Enfermedades del Sistema Nervioso Periférico/diagnóstico , Enfermedades del Sistema Nervioso Periférico/terapia , Antineoplásicos/efectos adversos , Antineoplásicos/uso terapéutico , Mieloma Múltiple/tratamiento farmacológico
11.
Int J Oncol ; 64(4)2024 04.
Artículo en Inglés | MEDLINE | ID: mdl-38391053

RESUMEN

The immunogenic cell death (ICD) has aroused great interest in cancer immunotherapy. Doxorubicin (DOX), which can induce ICD, is a widely used chemotherapeutic drug in liver cancer. However, DOX­induced ICD is not potent enough to initiate a satisfactory immune response. Cucurbitacin IIa (CUIIa), a tetracyclic triterpene, is a biologically active compound present in the Cucurbitaceae family. The present study assessed the effects of the combination of DOX and CUIIa on the viability, colony formation, apoptosis and cell cycle of HepG2 cells. In vivo anticancer effect was performed in mice bearing H22 tumor xenografts. The hallmark expression of ICD was tested using immunofluorescence and an ATP assay kit. The immune microenvironment was analyzed using flow cytometry. The combination of CUIIa and DOX displayed potent apoptosis inducing, cell cycle arresting and in vivo anticancer effects, along with attenuated cardiotoxicity in H22 mice. The combination of DOX and CUIIa also facilitated ICD as manifested by elevated high­mobility group box 1, calreticulin and ATP secretion. This combination provoked a stronger immune response in H22 mice, including dendritic cell activation, increment of cytotoxic T cells and T helper 1 cells. Moreover, the proportion of immunosuppressive cells including myeloid­derived suppressor cells, T regulatory cells and M2­polarized macrophages, decreased. These data suggested that CUIIa is a promising combination partner with DOX for liver cancer treatment, probably via triggering ICD and remolding the immune microenvironment.


Asunto(s)
Cucurbitacinas , Muerte Celular Inmunogénica , Neoplasias Hepáticas , Humanos , Animales , Ratones , Doxorrubicina/farmacología , Doxorrubicina/uso terapéutico , Neoplasias Hepáticas/tratamiento farmacológico , Adenosina Trifosfato , Línea Celular Tumoral , Inmunoterapia , Microambiente Tumoral
12.
Explore (NY) ; 20(2): 181-187, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-37652788

RESUMEN

PURPOSE: To summarizes the available evidence on the effectiveness, safety, and feasibility of complementary and alternative medicine (CAM) in the management of chemotherapy-induced peripheral neuropathy (CIPN). METHODS: We searched for systematic reviews, and meta-analyzes published up to April 2023 in the Pubmed and Web of Science databases. The latest original research on related topics was also reviewed. The search was restricted to English-language papers. Two independent reviewers performed a quality assessment of the identified literature. RESULTS: The results of 35 systematic reviews and meta-analyzes were included in this study. Preliminary evidence suggests that CAM, including acupuncture, physical activity (PA), herbal and nutritional supplements, mind-body therapies, touch therapy, and non-invasive neuromodulation techniques, have shown tremendous potential for the prevention and treatment of CIPN. Of these, there is strong evidence supporting acupuncture, PA, and herbal medicine. However, existing clinical studies are also limited by the heterogeneity of study methods, insufficient sample size, and poor study design. Further studies are needed to validate the efficacy of CAM in patients with CIPN and to elucidate potential therapeutic mechanisms. CONCLUSIONS: Current research has reached a preliminary conclusion suggesting the potential efficacy of certain CAMs in the management of CIPN. Future clinical trials should incorporate more robust study design protocols and larger sample sizes to enhance the validity of findings.


Asunto(s)
Terapia por Acupuntura , Antineoplásicos , Terapias Complementarias , Enfermedades del Sistema Nervioso Periférico , Humanos , Antineoplásicos/efectos adversos , Revisiones Sistemáticas como Asunto , Enfermedades del Sistema Nervioso Periférico/terapia , Enfermedades del Sistema Nervioso Periférico/tratamiento farmacológico
13.
Int J Biol Macromol ; 281(Pt 1): 136390, 2024 Oct 09.
Artículo en Inglés | MEDLINE | ID: mdl-39383910

RESUMEN

Polygalacturonic acid (PGA) restored the alpha-diversity of gut microbiota and promoted T cells infiltration in tumors. Here, we investigated whether oral administration of PGA could improve the anti-cancer effect of lipopolysaccharide-encapsulated PLGA-PEG-PLGA (LPS/PPP) in mice bearing CT26 tumors. Hydrogels with rapid thermogelling properties can achieve localized and controlled release of LPS, thus retaining the anti-cancer effect of LPS and avoiding a robust inflammatory storm. LPS/PPP promoted M1 macrophage polarization, TLR4 expression, and phagocytosis in tumors. The combination of PGA and LPS/PPP (PGA_LPS) notably repressed CT26 tumor growth and the inhibition rate reached 67.6 %. PGA_LPS triggered the recruitment of helper and cytotoxic T cells, IFN-γ level, decreased the proportion of immunosuppressive regulatory T cells. PGA_LPS also restored the beta-diversity of gut microbiota and increased short chain fatty acids abundance (butyric acid, 608.93 % vs. model group, P < 0.01). PGA_LPS followed by αPD-L1 resulted in obvious inhibition of both CT26 and 4T1 tumor growth, promoted cleaved-caspase 3 and Bax expression, T cell responses and the rescue of T cells exhaustion. These results confirmed that PGA_LPS reinforced the anticancer effect of αPD-L1, probably by reshaping the tumor microenvironment and intestinal flora, which sheds light on the combination approach to intensify the effect of immune checkpoint inhibitors.

14.
Chin Med ; 19(1): 58, 2024 Apr 07.
Artículo en Inglés | MEDLINE | ID: mdl-38584284

RESUMEN

BACKGROUND: Danggui Sini decoction (DSD), a traditional Chinese medicine formula, has the function of nourishing blood, warming meridians, and unblocking collaterals. Our clinical and animal studies had shown that DSD can effectively protect against oxaliplatin (OXA)-induced peripheral neuropathy (OIPN), but the detailed mechanisms remain uncertain. Multiple studies have confirmed that gut microbiota plays a crucial role in the development of OIPN. In this study, the potential mechanism of protective effect of DSD against OIPN by regulating gut microbiota was investigated. METHODS: The neuroprotective effects of DSD against OIPN were examined on a rat model of OIPN by determining mechanical allodynia, biological features of dorsal root ganglia (DRG) as well as proinflammatory indicators. Gut microbiota dysbiosis was characterized using 16S rDNA gene sequencing and metabolism disorders were evaluated using untargeted and targeted metabolomics. Moreover the gut microbiota mediated mechanisms were validated by antibiotic intervention and fecal microbiota transplantation. RESULTS: DSD treatment significantly alleviated OIPN symptoms by relieving mechanical allodynia, preserving DRG integrity and reducing proinflammatory indicators lipopolysaccharide (LPS), IL-6 and TNF-α. Besides, DSD restored OXA induced intestinal barrier disruption, gut microbiota dysbiosis as well as systemic metabolic disorders. Correlation analysis revealed that DSD increased bacterial genera such as Faecalibaculum, Allobaculum, Dubosiella and Rhodospirillales_unclassified were closely associated with neuroinflammation related metabolites, including positively with short-chain fatty acids (SCFAs) and sphingomyelin (d18:1/16:0), and negatively with pi-methylimidazoleacetic acid, L-glutamine and homovanillic acid. Meanwhile, antibiotic intervention apparently relieved OIPN symptoms. Furthermore, fecal microbiota transplantation further confirmed the mediated effects of gut microbiota. CONCLUSION: DSD alleviates OIPN by regulating gut microbiota and potentially relieving neuroinflammation related metabolic disorder.

15.
Mol Cancer ; 12: 30, 2013 Apr 23.
Artículo en Inglés | MEDLINE | ID: mdl-23617834

RESUMEN

BACKGROUND: Colorectal carcinoma (CRC) is one of the leading causes of cancer-related mortality worldwide. MicroRNAs (miRNAs, miRs) play important roles in carcinogenesis. MiR-32 has been shown to be upregulated in CRC. In this study, we identified the potential effects of miR-32 on some important biological properties of CRC cells, and clarified the regulation of PTEN by miR-32. METHODS: The effect of miR-32 on PTEN expression was assessed in CRC cell lines with miR-32 mimics/inhibitor to increase/decrease miR-32 expression. Furthermore, the roles of miR-32 in regulating CRC cells biological properties were analyzed with miR-32 mimics/inhibitor-transfected cells. The 3'-untranslated region (3'-UTR) of PTEN combined with miR-32 was verified by dual-luciferase reporter assay. RESULTS: Gain-of-function and loss-of-function studies showed that overexpression of miR-32 promoted SW480 cell proliferation, migration, and invasion, reduced apoptosis, and resulted in downregulation of PTEN at a posttranscriptional level. However, miR-32 knock-down inhibited these processes in HCT-116 cells and enhanced the expression of PTEN protein. In addition, we further identified PTEN as the functional downstream target of miR-32 by directly targeting the 3'-UTR of PTEN. CONCLUSIONS: Our results demonstrated that miR-32 was involved in tumorigenesis of CRC at least in part by suppression of PTEN.


Asunto(s)
Neoplasias del Colon/genética , Neoplasias del Colon/patología , Neoplasias Colorrectales/genética , Neoplasias Colorrectales/patología , MicroARNs/genética , Fosfohidrolasa PTEN/genética , Regiones no Traducidas 3' , Apoptosis/genética , Línea Celular Tumoral , Movimiento Celular/genética , Proliferación Celular , Expresión Génica , Regulación Neoplásica de la Expresión Génica , Células HCT116 , Humanos , Invasividad Neoplásica , Fosfohidrolasa PTEN/metabolismo
16.
Front Oncol ; 13: 1095852, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36776335

RESUMEN

Objective: Numerous studies focusing on sedentary behavior (SB) and physical activity (PA) in the context of cancer have been reported in recent years. We analyzed and visualized studies on SB and PA in patients with cancer over the last 20 years using scientometric methods, to provide insights on gaps and deficiencies in the literature, and to inform future research guidelines. Methods: All relevant studies in the field from 2001 to October 2022 were reviewed using bibliometric tools, including VOSviewer, Bibliometric online analysis platform, and biblioshiny, to determine the most influential countries, institutions, journals, and authors. We explored current research hotpots and potential research trends, based on keyword clustering and dynamic changes. Our research focuses on PA, SB, and cancer across the entire cancer continuum, from primary prevention to treatment to cancer survivorship. Results: Scientometric analysis identified 4,382 relevant manuscripts on SB and PA in the context of cancer, with a 10-fold increase in articles over the past 20 years. The United States, Canada, and Australia were the most influential countries. The journal, Supportive Care in Cancer, had the highest number of publications, while Clinical Oncology had the highest H-index. K.S. Courneya was the most influential author in this field, with the highest number of publications, total citations, and H-index. Keyword analysis revealed that current research is focused on PA and SB in patients with breast cancer, quality of life, and aerobic exercise. Future frontiers include cancer prehabilitation programs and cardiorespiratory fitness, and remote intervention and social support. Conclusion: By using bibliometrics, we conducted a comprehensive review of SB and PA in cancer-related studies. The current research focused on exercise and sedentariness in breast cancer patients and the role of PA in improving quality of life in survivorship. Emerging research foci were generally around cancer prehabilitation programs and remote intervention issues for PA. In addition, some publication deficits are noted: studies of PA and SB in less common cancers; the recommended doses and intensities of exercise for cancer; the timing of interventions for prehabilitation and the establishment of individualized exercise protocols. These deficiencies align with the needs for future research topics.

17.
Int Immunopharmacol ; 125(Pt A): 111144, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37922569

RESUMEN

Hepatic fibrosis (HF) is a challenging clinical problem. Both sodium alginate (SA) and oxymatrine (OM) can be used to treat HF; however, the influence of viscosity on the therapeutic efficacy of sodium alginate is currently unknown. This study used a CCl4-induced HF mouse model to screen the specifications and doses of SA and investigate its therapeutic effects on HF in combination with OM. Sodium alginate of different viscosities ameliorated HF in mice, with 232 mPa·s SA delivered at a dose of 100 mg/kg showing remarkable therapeutic effect, characterized by reduced aspartate transaminase/alanine transaminase levels, reduced expression of α-SMA, collagen I, and other related genes, and increased abundance of beneficial intestinal probiotics such as Lactococcus and Blautia. The combination treatment further improved other related indices and increased the abundance of Phascolarctobacterium and Oscillospiraceae. These results suggest that the oral administration of SA may improve HF via the "gut-liver axis" based on the gut microbiota and has potential clinical applications.


Asunto(s)
Alginatos , Alcaloides , Ratas , Ratones , Animales , Alginatos/uso terapéutico , Ratas Sprague-Dawley , Cirrosis Hepática/inducido químicamente , Cirrosis Hepática/tratamiento farmacológico , Cirrosis Hepática/metabolismo , Hígado/patología , Alcaloides/farmacología , Tetracloruro de Carbono/farmacología
18.
Explore (NY) ; 19(1): 71-77, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-35437224

RESUMEN

OBJECTIVE: To explore effective acupoints and combinations for the treatment of chemotherapy-induced peripheral neuropathy (CIPN) METHODS: Clinical controlled trials and randomized controlled trials of acupuncture for CIPN were sourced from PubMed, Embase, Web of Science, and Chinese databases, including the Wanfang database, VIP Journals database, and China National Knowledge Infrastructure database. The quality of eligible research was evaluated based on CONSORT and STRICTA statements. The common acupoints, meridians, and acupoint combinations were determined from acupuncture prescriptions reporting positive effects and were analyzed using SPSS 23.0 and SPSS Modeler 14.1. Finally, a complex network was constructed using Cytoscape 3.8.2 to explore the core acupoints. RESULTS: The quality of 24 clinical trials was evaluated, and 20 acupuncture prescriptions that reported positive outcomes were included in subsequent data mining analysis. The most frequently used acupoints are ST36, LI11, LI4, LR3, and SP6. Meanwhile, they are also the core acupoints in acupuncture prescriptions according to the complex network with 28 nodes and 177 edges. The most commonly used meridians were the large intestine, stomach, and spleen. Acupoint combinations of LI11 and ST36, SP6 and ST36 were frequently used. CONCLUSION: Our study provides a reference for the selection of effective acupoints for CIPN treatment and a basis for the effective use of this form of traditional Chinese medicine. Furthermore, we found limitations in the design and implementation of the available clinical research, which should be minimized in future studies.


Asunto(s)
Terapia por Acupuntura , Antineoplásicos , Meridianos , Enfermedades del Sistema Nervioso Periférico , Humanos , Puntos de Acupuntura , Minería de Datos , Enfermedades del Sistema Nervioso Periférico/inducido químicamente , Enfermedades del Sistema Nervioso Periférico/terapia
19.
Biomater Res ; 26(1): 77, 2022 Dec 09.
Artículo en Inglés | MEDLINE | ID: mdl-36494759

RESUMEN

BACKGROUND: Combination of chemotherapy and immune checkpoint inhibitor therapy has greatly improved the anticancer effect on multiple malignancies. However, the efficiency on triple-negative breast cancer (TNBC) is limited, since most patients bear "cold" tumors with low tumor immunogenicity. Doxorubicin (DOX), one of the most effective chemotherapy agents, can induce immunogenic cell death (ICD) and thus initiating immune response. METHODS: In this study, to maximize the ICD effect induced by DOX, chitosan and cell-penetrating peptide (R6F3)-modified nanoparticles (PNPs) loaded with ginsenoside Rg3 (Rg3) were fabricated using the self-assembly technique, followed by co-encapsulation with DOX based on thermo-sensitive hydrogel. Orthotopic tumor model and contralateral tumor model were established to observe the antitumor efficacy of the thermo-sensitive hydrogel combined with anti-PD-L1 immunotherapy, besides, the biocompatibility was also evaluated by histopathological. RESULTS: Rg3-PNPs strengthened the immunogenic cell death (ICD) effect induced by DOX. Moreover, the hydrogel co-loading Rg3-PNPs and DOX provoked stronger immune response in originally nonimmunogenic 4T1 tumors than DOX monotherapy. Following combination with PD-L1 blocking, substantial antitumor effect was achieved due to the recruitment of memory T cells and the decline of adaptive PD-L1 enrichment. CONCLUSION: The hydrogel encapsulating DOX and highly permeable Rg3-PNPs provided an efficient strategy for remodeling immunosuppressive tumor microenvironment and converting immune "cold" 4T1 into "hot" tumors.

20.
Clin Case Rep ; 9(1): 128-132, 2021 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-33489147

RESUMEN

Early detection and treatment are critical for preventing catheter allotopia in the totally implantable access ports and whenever possible, the right internal jugular vein should be selected as the first puncture point.

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