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1.
Hepatobiliary Pancreat Dis Int ; 23(3): 249-256, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38040524

RESUMO

BACKGROUND: Cancer-related fatigue (CRF) is a common and debilitating symptom experienced by patients with advanced-stage cancer, especially those undergoing antitumor therapy. This study aimed to evaluate the efficacy and safety of Renshenguben (RSGB) oral solution, a ginseng-based traditional Chinese medicine, in alleviating CRF in patients with advanced hepatocellular carcinoma (HCC) receiving antitumor treatment. METHODS: In this prospective, open-label, controlled, multicenter study, patients with advanced HCC at BCLC stage C and a brief fatigue inventory (BFI) score of ≥ 4 were enrolled. Participants were assigned to the RSGB group (RSGB, 10 mL twice daily) or the control group (with supportive care). Primary and secondary endpoints were the change in multidimensional fatigue inventory (MFI) score, and BFI and functional assessment of cancer therapy-hepatobiliary (FACT-Hep) scores at weeks 4 and 8 after enrollment. Adverse events (AEs) and toxicities were assessed. RESULTS: A total of 409 participants were enrolled, with 206 assigned to the RSGB group. At week 4, there was a trend towards improvement, but the differences were not statistically significant. At week 8, the RSGB group exhibited a significantly lower MFI score (P < 0.05) compared to the control group, indicating improved fatigue levels. Additionally, the RSGB group showed significantly greater decrease in BFI and FACT-Hep scores at week 8 (P < 0.05). Subgroup analyses among patients receiving various antitumor treatments showed similar results. Multivariate linear regression analyses revealed that the RSGB group experienced a significantly substantial decrease in MFI, BFI, and FACT-Hep scores at week 8. No serious drug-related AEs or toxicities were observed. CONCLUSIONS: RSGB oral solution effectively reduced CRF in patients with advanced HCC undergoing antitumor therapy over an eight-week period, with no discernible toxicities. These findings support the potential of RSGB oral solution as an adjunctive treatment for managing CRF in this patient population.


Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , Panax , Humanos , Carcinoma Hepatocelular/complicações , Estudos Prospectivos , Neoplasias Hepáticas/complicações , Fadiga/tratamento farmacológico , Fadiga/etiologia
2.
Neoplasma ; 69(6): 1349-1358, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36305691

RESUMO

Previous studies have shown that PHF21A is associated with the initiation and progression of various tumors. However, its role in hepatocellular carcinoma (HCC) is still unclear. Thus, this study aimed to determine the expression and clinical significance of PHF21A in HCC. PHF21A expression in 201 liver cancer samples and 129 adjacent normal tissues was detected by immunohistochemistry. The correlation between PHF21A expression and the clinicopathological features and prognosis of HCC was verified in 70 other liver tissue microarray samples. The relationship between PHF21A expression and HCC immune cell infiltration was explored via the Tumor Immune Estimation Resource (TIMER). The mechanism underlying the effect of PHF21A on HCC progression was analyzed by gene set enrichment analysis (GSEA) and protein-protein interaction (PPI) network analysis. Immunohistochemical staining showed that PHF21A expression in HCC tissue was significantly lower than that in adjacent nontumor liver tissue and was associated with patient sex, tumor size, metastasis, and Edmondson grade (p<0.05). Kaplan-Meier analysis demonstrated that low PHF21A expression was associated with a poor prognosis, and Cox regression analysis showed that PHF21A was an independent predictor of prognosis. TIMER analysis showed that PHF21A is positively correlated with tumor immune cell infiltration levels. Functional annotation indicated that PHF21A is involved in important pathways, including transcriptional deregulation pathways in cancer. Finally, in vitro experiments confirmed the low expression of PHF21A in HCC cells. PHF21A affects the progression and prognosis of HCC, suggesting that PHF21A may play an important role in monitoring and preventing the development of HCC.


Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , Humanos , Carcinoma Hepatocelular/genética , Neoplasias Hepáticas/genética , Prognóstico , Biomarcadores , Estimativa de Kaplan-Meier , Biomarcadores Tumorais/metabolismo , Histona Desacetilases
3.
Hepatobiliary Pancreat Dis Int ; 21(6): 559-568, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-35643910

RESUMO

BACKGROUND: Current surveillance strategies for hepatocellular carcinoma (HCC) among patients with nonalcoholic fatty liver disease (NAFLD) are insufficient. This study aimed to investigate the diagnostic performance of alpha-fetoprotein (AFP), protein induced by vitamin K absence or antagonist-II (PIVKA-II), lens culinaris agglutinin-reactive fraction of AFP (AFP-L3), and their combinations in HCC underlying NAFLD patients. METHODS: Serologic AFP, AFP-L3, and PIVKA-II levels in NAFLD patients with and without HCC were measured. By receiver operating characteristic (ROC) analyses, the area under the curve (AUC), sensitivity, and specificity were obtained to evaluate the diagnostic accuracy of each biomarker and their combinations. RESULTS: This study was conducted on 139 patients with NAFLD-HCC and 345 NAFLD controls. The elevation of these three biomarkers was observed in patients with NAFLD-HCC compared to those in NAFLD controls (all P < 0.001). When they were analyzed individually, PIVKA-II showed the best performance in diagnosing any-stage HCC with an AUC of 0.869, followed by AFP (0.763; vs. PIVKA-II, P < 0.001) and AFP-L3 (0.689; vs. PIVKA-II, P < 0.001). When they were analyzed in combination, AFP + PIVKA-II yielded the highest AUC (0.906), followed by AFP + PIVKA-II + AFP-L3 (0.904; vs. AFP + PIVKA-II, P = 0.086), PIVKA-II + AFP-L3 (0.881; vs. AFP + PIVKA-II, P < 0.001), and AFP + AFP-L3 (0.759; vs. AFP + PIVKA-II, P < 0.001). Similar findings were obtained in the subgroup with early-stage NAFLD-HCC, as well as the non-cirrhotic subgroup. CONCLUSIONS: These data validated the better diagnostic ability of PIVKA-II than AFP or AFP-L3 alone for diagnosing any-stage HCC among patients with NAFLD, and the combination of AFP + PIVKA-II significantly improved the diagnostic accuracy of NAFLD-HCC.


Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , Hepatopatia Gordurosa não Alcoólica , Humanos , alfa-Fetoproteínas/metabolismo , Carcinoma Hepatocelular/diagnóstico , Carcinoma Hepatocelular/patologia , Hepatopatia Gordurosa não Alcoólica/complicações , Hepatopatia Gordurosa não Alcoólica/diagnóstico , Neoplasias Hepáticas/diagnóstico , Protrombina/análise , Protrombina/metabolismo , Precursores de Proteínas , Biomarcadores , Vitamina K , Biomarcadores Tumorais
4.
Biotechnol Lett ; 42(1): 1-10, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31602549

RESUMO

Microcarriers are 100- to 300-micron support matrices that permit the growth of adherent cells in bioreactor systems. They have a larger surface area to volume ratio in comparison to single cell monolayers, enabling cost-effective cell production and expansion. Microcarriers are composed of a solid matrix that must be separated from expanded cells during downstream processing stages. The detachment method is chosen on the basis of several factors like cell type, microcarrier surface chemistry, cell confluency and degree of aggregation. The development of microcarriers with a range of physiochemical properties permit controlled cell and protein associations that hold utility for novel therapeutics. In this review, we provide an overview of the recent advances in microcarrier cell culture technology. We also discuss its significance as an ex vivo research tool and the therapeutic potential of newly designed microcarrier systems in vivo.


Assuntos
Biotecnologia/métodos , Técnicas de Cultura de Células/métodos , Microesferas , Reatores Biológicos , Biotecnologia/tendências , Técnicas de Cultura de Células/tendências
8.
Chem Biodivers ; 14(8)2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28452167

RESUMO

Three new sesquiterpenoids, salplebeones A - C (1 - 3), were isolated from the ethanol-soluble extract of the aerial part of Salvia plebeia R. Br. Their structures were established by detailed analysis of NMR and MS spectra. Salplebeone A was an eudesmane lactone, while salplebeones B and C were rare eudesmane sesquiterpenoids, containing 12,8-lactam groups. Antiproliferative activities of salplebeones A - C to myeloid leukemia cell lines were evaluated.


Assuntos
Salvia/química , Sesquiterpenos de Eudesmano/química , Antineoplásicos Fitogênicos/química , Antineoplásicos Fitogênicos/isolamento & purificação , Antineoplásicos Fitogênicos/farmacologia , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Medicamentos de Ervas Chinesas/química , Medicamentos de Ervas Chinesas/isolamento & purificação , Medicamentos de Ervas Chinesas/farmacologia , Humanos , Espectroscopia de Ressonância Magnética , Espectrometria de Massas , Conformação Molecular , Salvia/metabolismo , Sesquiterpenos de Eudesmano/isolamento & purificação , Sesquiterpenos de Eudesmano/farmacologia
10.
Zhongguo Shi Yan Xue Ye Xue Za Zhi ; 32(2): 389-394, 2024 Apr.
Artigo em Chinês | MEDLINE | ID: mdl-38660841

RESUMO

OBJECTIVE: To investigate the effects of elesclomol-Cu (ES-Cu) on the proliferation and cuproptosis of human acute myeloid leukemia (AML) cells. METHODS: The effects of ES-Cu on the proliferation of AML cells and the AML cells pre-treated with ammonium tetrathiomolybdate (TTM) were examined by CCK-8 assay. The Calcein/PI kit was used to detected the changes in activity and cytotoxicity of AML cells induced by ES-Cu. Flow cytometry and Cytation3 fully automated cell imaging multifunctional detection system were used to analyze DCFH-DA fluorescence intensity, so as to determine the level of reactive oxygen species (ROS). The GSH and GSSG detection kits were used to measure the intracellular GSH content. Western blot was used to detected the expression of cuproptosis-related proteins ATP7B, FDX1, DLAT and DPYD. RESULTS: ES-Cu inhibited the proliferation of Kasumi-1 and HL-60 cells in a concentration-dependent manner (r Kasumi-1=-0.99, r HL-60=-0.98). As the concentration of ES-Cu increased, the level of intracellular ROS also increased (P <0.01-0.001). TTM could significantly reverse the inhibitory effect of ES-Cu on cell proliferation and its promoting effect on ROS. With the increase of ES-Cu concentration, the content of GSH was decreased (r =-0.98), and Western blot showed that the protein expressions of ATP7B, FDX1, DLAT and DPYD were significantly reduced (P <0.05). CONCLUSION: ES-Cu can induce cuproptosis in AML cells, which provides a new idea for the treatment of AML.


Assuntos
Proliferação de Células , Hidrazinas , Leucemia Mieloide Aguda , Molibdênio , Espécies Reativas de Oxigênio , Humanos , Proliferação de Células/efeitos dos fármacos , Espécies Reativas de Oxigênio/metabolismo , Células HL-60 , Linhagem Celular Tumoral , Cobre/farmacologia
11.
Zhongguo Shi Yan Xue Ye Xue Za Zhi ; 32(4): 1181-1185, 2024 Aug.
Artigo em Chinês | MEDLINE | ID: mdl-39192416

RESUMO

OBJECTIVE: To explore whether thiotert treatment can inhibit proliferation and induce apoptosis in myelodysplastic syndromes (MDS) cells. METHODS: CCK-8 assay was used for determining the cytotoxicity of thiotert to MDS cell line SKM-1 and the reversal effect of GSH, NAC, and Z-VAD-FMK on thiotert-induced inhibition of cell viability. EdU assay was deployed to detect the cell proliferation ability. Intracellular reactive oxygen species (ROS) was measured by flow cytometry after DCFH-DA staining. The expression of DNA damage- and apoptosis-related proteins was detected by Western blot. RESULTS: Thiotert treatment significantly suppressed the cell viability and proliferation ability in SKM-1 cells. A large amount of ROS generation and markedly elevated C-PARP, C-Caspase 3, and γ-H2AX were observed after thiotert administration, while BCL-2 was significantly decreased. In addition, GSH, NAC, and Z-VAD-FMK were able to mitigate the cytotoxicity of thiotert on SKM-1 cells. CONCLUSION: Thiotert can promote MDS cell apoptosis by mediating ROS production and pro-apoptotic proteins expression.


Assuntos
Apoptose , Proliferação de Células , Síndromes Mielodisplásicas , Estresse Oxidativo , Espécies Reativas de Oxigênio , Apoptose/efeitos dos fármacos , Síndromes Mielodisplásicas/metabolismo , Humanos , Estresse Oxidativo/efeitos dos fármacos , Espécies Reativas de Oxigênio/metabolismo , Proliferação de Células/efeitos dos fármacos , Sobrevivência Celular/efeitos dos fármacos , Caspase 3/metabolismo , Dano ao DNA , Proteínas Proto-Oncogênicas c-bcl-2/metabolismo
12.
Artigo em Inglês | MEDLINE | ID: mdl-39115788

RESUMO

Hepatocellular carcinoma (HCC) is the most common type of liver cancer, characterized by a high morbidity rate. Long non-coding RNAs (lncRNAs) play an important role in regulating various cellular processes and diseases, including cancer. However, their specific roles and mechanisms in HCC are not fully understood. This study used a multi-cohort design to investigate necroptosis-related lncRNAs (NRLs) in patients with HCC. We curated a list of 1095 NRLs and 838 genes showing differential expression between tumor and normal tissues. Among them, we found 105 NRLs closely associated with the prognosis of HCC patients. The 10 lncRNAs (AC100803.3, AC027237.2, AL158166.1, LINC02870, AC026412.3, LINC02159, AC027097.1, AC139887.4, AC007405.1, AL023583.1) generated by LASSO-Cox regression analysis were used to create a prognostic risk model for HCC and group patients into groups based on risk. The KEGG analysis revealed distinct pathway enrichments in high-risk (H-R) and low-risk (L-R) subgroups. According to GO analysis, this study identified 230 differentially expressed genes (DEGs) that were significantly enriched in specific biological processes. Comparison of immune checkpoint-related genes (MCPGs) between H-R and L-R patients revealed significant differences. Moreover, we established a correlation between the risk scores of patients with liver cancer and their sensitivity to 16 chemotherapeutic agents. Employing protein-protein interaction (PPI) analysis, we identified 10 hub genes that potentially regulate the molecular networks involved in HCC development. This study is a pioneering effort to investigate the roles of NRLs in HCC. It opens a new avenue for potential targeted therapies and provides insights into the molecular mechanisms of HCC.

13.
World J Clin Cases ; 10(4): 1263-1277, 2022 Feb 06.
Artigo em Inglês | MEDLINE | ID: mdl-35211559

RESUMO

BACKGROUND: With the widespread application of immune checkpoint inhibitor (ICI) therapy, the number of immune-related adverse effects (irAEs) has increased over the years. Autoimmune diabetes mellitus (DM) is a rare irAEs of ICIs and can be troublesome and life threatening. CASE SUMMARY: We report a 78-year-old woman with no history of diabetes who presented with hyperglycemia up to 23.4 mmol/L (random blood glucose level) after 14 courses of sintilimab. Hemoglobin A1c was 8.2%, fasting insulin was 0.29 mIU/mL, and fasting C-peptide was decreased to a level with negative autoantibodies. Combing her medical history and laboratory examination, she was diagnosed with programmed cell death (PD)-1-inhibitor-induced, new-onset autoimmune DM. After controlling her blood glucose, she was treated with daily insulin by subcutaneous injection. She was allowed to continue anti-PD-1 therapy and she still obtained some therapeutic efficacy. We also reviewed some published cases (n = 36) of PD-1/PD-ligand 1 (PD-L1) inhibitor-induced DM. We also discuss potential pathogenic mechanisms, clinical features, prognostic markers (ß cell antibodies, human leukocyte antigen type, PD-L1 Level) of this rare adverse effect. CONCLUSION: It is important for all clinicians to be aware of DM as an irAEs of ICIs.

14.
Zhongguo Shi Yan Xue Ye Xue Za Zhi ; 30(5): 1337-1342, 2022 Oct.
Artigo em Chinês | MEDLINE | ID: mdl-36208232

RESUMO

OBJECTIVE: To investigate the effect of dihydroartemisinin (DHA) combined with arsenic trioxide (ATO) on the viability and apoptosis of acute myeloid leukemia (AML) FLT3-ITD mutant cell line MOLM13 and its mechanism. METHODS: MOLM13 cells were treated with DHA or ATO alone or in combination. The viability of MOLM13 cells was detected by CCK-8 assay, cell proliferation was observed by colony formation assay, cell apoptosis and reactive oxygen species (ROS) level were measured by flow cytometry, and the expression levels of proteins related to apoptosis were detected by Western blot. RESULTS: Compared with the control group, treatment with DHA and ATO alone or in combination could inhibit cell proliferation, activate ROS formation, and finally induce cell apoptosis. DHA in combination with ATO produced a synergistic effect. Western blot analysis showed that DHA combined with ATO could significantly upregulate the level of c-PARP and activate apoptosis via inhibition of Mcl-1 and FLT3-ITD. CONCLUSION: DHA combined with ATO induces the apoptosis of FLT3-ITD AML cell line MOLM13 by inhibiting Mcl-1 pathway and activating FLT3-ITD protein degradation.


Assuntos
Artemisininas , Leucemia Mieloide Aguda , Apoptose , Trióxido de Arsênio/uso terapêutico , Artemisininas/farmacologia , Artemisininas/uso terapêutico , Linhagem Celular Tumoral , Humanos , Leucemia Mieloide Aguda/tratamento farmacológico , Proteína de Sequência 1 de Leucemia de Células Mieloides , Inibidores de Poli(ADP-Ribose) Polimerases/farmacologia , Inibidores de Poli(ADP-Ribose) Polimerases/uso terapêutico , Espécies Reativas de Oxigênio/metabolismo , Espécies Reativas de Oxigênio/farmacologia , Espécies Reativas de Oxigênio/uso terapêutico , Tirosina Quinase 3 Semelhante a fms
15.
Front Oncol ; 12: 1018396, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36263214

RESUMO

Background: The GALAD and ASAP scores are two well-recognized algorithms to estimate the risk of hepatocellular carcinoma (HCC) based on gender, age, alpha-fetoprotein (AFP), protein induced by vitamin K absence or Antagonist-II (PIVKA-II) and AFP-L3 (included in the GALAD score but not in the ASAP score). The current study sought to compare the diagnostic performance of each score to detect HCC among patients infected with hepatitis C virus (HCV). Methods: A multicenter case-control study was undertaken in which blood samples were collected from HCVinfected patients with and without HCC. Using the area under the receiver operating characteristic curve (AUROC), ASAP and GALAD scores were compared relative to diagnostic performance to detect any stage HCV-HCC and early-stage HCV-HCC. Results: The analytic cohort included 168 HCV-HCC patients and a control group of 193 HCV-infected patients. The ASAP score had a higher AUROC to detect any stage HCV-HCC versus the GALAD score, both in the overall group (0.917 vs. 0.894, P=0.057) and in the cirrhosis subgroup (0.909 vs. 0.889, P=0.132). Similar results were noted relative to the detection of early-stage HCV-HCC, whether defined by BCLC staging (stage 0-A: 0.898 vs. 0.860, P=0.026) or 8th TNM staging (stage I: 0.899 vs. 0.870, P=0.070). In subgroup analysis to detect AFP-negative HCV-HCC, the ASAP score also demonstrated a higher AUROC than the GALAD score to detect any stage HCV-HCC in the AFP-negative subgroup (0.815 vs. 0.764, P=0.063). Conclusions: The ASAP score had better diagnostic performance for early detection of HCV-HCC compared with the GALAD score. The ASAP score may be preferrable to the GALAD score for HCC screening and surveillance among HCV-infected patients.

16.
Inflamm Res ; 60(9): 823-9, 2011 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-21528357

RESUMO

OBJECTIVE: To evaluate the mechanism of macrophage-stimulating protein (MSP)-mediated inhibition of inflammatory cytokine and chemokine production in rheumatoid arthritis synovial fibroblasts (RASF). MATERIALS AND METHODS: RASF were treated with different concentrations (0, 0.5, 1, 5 and 10 ng/ml) of MSP with or without 1 µg/mL lipopolysaccharide (LPS). The protein expressions of IL-1ß, TNF-α, IL-18, MIP-1, MCP-1, RANTES and PGE(2) were analyzed by enzyme-linked immunosorbent assays (ELISA). The total nitric oxide (NO) concentration was determined using the Griess reaction. The protein expressions of iNOS, COX-2, NF-κB(p-p65), IKB-α, IKB-ß, p-P38, p-Erk1/2 (P-P42/44) and p-AKT were detected by Western blotting. RESULTS: MSP markedly inhibited expression of inflammatory cytokines (IL-1ß, TNF-α and IL-18), chemokines (MIP-1, MCP-1 and RANTES) and iNOS, NO, COX-2 and PGE(2) in RASF stimulated by LPS. MSP treatment decreased expressions of p-IκBα, p-IKBß and p-P65 in RASF in a concentration-dependent manner. Expressions of p-AKT, p-p38 and p-Erk1/2 were also inhibited markedly in RASF stimulated by LPS after treatment with MSP in a concentration-dependent manner. CONCLUSION: MSP could inhibit the inflammatory cycle by suppressing inflammatory mediators and activation of NF-κB as well. The inhibitory effect of MSP on LPS-stimulated RASF may act through suppression of multiple signals such as the PI3K/AKT and/or MAPK pathways.


Assuntos
Artrite Reumatoide/imunologia , Fibroblastos/efeitos dos fármacos , Fibroblastos/imunologia , Fator de Crescimento de Hepatócito/farmacologia , Mediadores da Inflamação/antagonistas & inibidores , Proteínas Proto-Oncogênicas/farmacologia , Transdução de Sinais/efeitos dos fármacos , Membrana Sinovial/citologia , Artrite Reumatoide/patologia , Células Cultivadas , Quimiocinas/imunologia , Ciclo-Oxigenase 2/metabolismo , Citocinas/imunologia , Dinoprostona/imunologia , Fibroblastos/citologia , Fibroblastos/fisiologia , Fator de Crescimento de Hepatócito/imunologia , Humanos , Proteínas I-kappa B/metabolismo , Lipopolissacarídeos/imunologia , Lipopolissacarídeos/farmacologia , Proteínas Quinases Ativadas por Mitógeno/metabolismo , Inibidor de NF-kappaB alfa , Óxido Nítrico/metabolismo , Óxido Nítrico Sintase Tipo II/metabolismo , Proteínas Proto-Oncogênicas/imunologia , Proteínas Proto-Oncogênicas c-akt/metabolismo , Transdução de Sinais/imunologia , Fator de Transcrição RelA/metabolismo
18.
Ther Adv Med Oncol ; 13: 17588359211006957, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33868463

RESUMO

Aberrant expression and/or activation of the MET receptor tyrosine kinase is characterized by genomic recombination, gene amplification, activating mutation, alternative exon-splicing, increased transcription, and their different combinations. These dysregulations serve as oncogenic determinants contributing to cancerous initiation, progression, malignancy, and stemness. Moreover, integration of the MET pathway into the cellular signaling network as an addiction mechanism for survival has made this receptor an attractive pharmaceutical target for oncological intervention. For the last 20 years, MET-targeting small-molecule kinase inhibitors (SMKIs), conventional therapeutic monoclonal antibodies (TMABs), and antibody-based biotherapeutics such as bispecific antibodies, antibody-drug conjugates (ADC), and dual-targeting ADCs have been under intensive investigation. Outcomes from preclinical studies and clinical trials are mixed with certain successes but also various setbacks. Due to the complex nature of MET dysregulation with multiple facets and underlying mechanisms, mechanism-based validation of MET-targeting therapeutics is crucial for the selection and validation of lead candidates for clinical trials. In this review, we discuss the importance of various types of mechanism-based pharmaceutical models in evaluation of different types of MET-targeting therapeutics. The advantages and disadvantages of these mechanism-based strategies for SMKIs, conventional TMABs, and antibody-based biotherapeutics are analyzed. The demand for establishing new strategies suitable for validating novel biotherapeutics is also discussed. The information summarized should provide a pharmaceutical guideline for selection and validation of MET-targeting therapeutics for clinical application in the future.

19.
Drug Discov Today ; 26(8): 1857-1874, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-34224904

RESUMO

Duocarmycins are a class of DNA minor-groove-binding alkylating molecules. For the past decade, various duocarmycin analogues have been used as payloads in the development of antibody-drug conjugates (ADCs). Currently, more than 15 duocarmycin-based ADCs have been studied preclinically, and some of them such as SYD985 have been granted Fast-Track Designation status. Nevertheless, progress in duocarmycin-based ADCs also faces challenges, with setbacks including the termination of BMS-936561/MDX-1203. In this review, we discuss issues associated with the efficacy, pharmacokinetic profile, and toxicological activity of these biotherapeutics. Furthermore, we summarize the latest advances in duocarmycin-based ADCs that have different target specificities and linker chemistries. Evidence from preclinical and clinical studies has indicated that duocarmycin-based ADCs are promising biotherapeutics for oncological application in the future.


Assuntos
Antineoplásicos/administração & dosagem , Duocarmicinas/administração & dosagem , Neoplasias/tratamento farmacológico , Animais , Antineoplásicos/farmacocinética , Antineoplásicos/farmacologia , Desenvolvimento de Medicamentos/métodos , Avaliação Pré-Clínica de Medicamentos/métodos , Duocarmicinas/farmacocinética , Duocarmicinas/farmacologia , Humanos , Imunoconjugados/administração & dosagem , Imunoconjugados/farmacocinética , Imunoconjugados/farmacologia
20.
J Exp Clin Cancer Res ; 39(1): 198, 2020 Sep 22.
Artigo em Inglês | MEDLINE | ID: mdl-32962738

RESUMO

Advanced colorectal adenocarcinoma (CRAC), featured by distinctive histopathological appearance, distant organ metastasis, acquired chemoresistance, and tumorigenic stemness is a group of heterogeneous cancers with unique genetic signatures and malignant phenotypes. Treatment of CRAC is a daunting task for oncologists. Currently, various strategies including molecular targeting using therapeutic monoclonal antibodies, small molecule kinase inhibitors and immunoregulatory checkpoint therapy have been applied to combat this deadly disease. However, these therapeutic modalities and approaches achieve only limited success. Thus, there is a pharmaceutical need to discover new targets and develop novel therapeutics for CRAC therapy. MET and RON receptor tyrosine kinases have been implicated in CRAC pathogenesis. Clinical studies have revealed that aberrant MET and/or RON expression and signaling are critical in regulating CRAC progression and malignant phenotypes. Increased MET and/or RON expression also has prognostic value for CRAC progression and patient survival. These features provide the rationale to target MET and RON for clinical CRAC intervention. At present, the use of small molecule kinase inhibitors targeting MET for CRAC treatment has achieved significant progress with several approvals for clinical application. Nevertheless, antibody-based biotherapeutics, although under clinical trials for more than 8 years, have made very little progress. In this review, we discuss the importance of MET and/or RON in CRAC tumorigenesis and development of anti-MET, anti-RON, and MET and RON-dual targeting antibody-drug conjugates for clinical application. The findings from both preclinical studies and clinical trials highlight the potential of this novel type of biotherapeutics for CRAC therapy in the future.


Assuntos
Adenocarcinoma/tratamento farmacológico , Neoplasias Colorretais/tratamento farmacológico , Proteínas Proto-Oncogênicas c-met/genética , Receptores Proteína Tirosina Quinases/genética , Adenocarcinoma/imunologia , Adenocarcinoma/patologia , Animais , Neoplasias Colorretais/imunologia , Neoplasias Colorretais/patologia , Regulação Neoplásica da Expressão Gênica/efeitos dos fármacos , Humanos , Imunoconjugados/química , Imunoconjugados/uso terapêutico , Camundongos , Terapia de Alvo Molecular , Proteínas Proto-Oncogênicas c-met/antagonistas & inibidores , Receptores Proteína Tirosina Quinases/antagonistas & inibidores , Bibliotecas de Moléculas Pequenas/uso terapêutico , Ensaios Antitumorais Modelo de Xenoenxerto
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