BMC Cancer最新文献

{"title":"Efficacy and safety of PD-1/PD-L1 inhibitors in patients with Merkel Cell Carcinoma: a systematic review and Meta-analysis.","authors":"Francisco Cezar Aquino de Moraes, Michele Kreuz, Isabella Christina Amaral de Lara, Artur de Oliveira Macena Lôbo, Rommel Mario Rodríguez Burbano","doi":"10.1186/s12885-024-13129-1","DOIUrl":"10.1186/s12885-024-13129-1","url":null,"abstract":"<p><strong>Background: </strong>Merkel cell carcinoma (MCC) is a rare and aggressive neuroendocrine skin cancer characterized by high rates of metastasis. Emerging evidence suggests that PD-L1/PD1 blockade holds promise as a therapeutic option for MCC. However, the efficacy and safety of this approach in treating MCC remain incompletely understood. This systematic review and meta-analysis aims to analyze the efficacy and safety of PD-1/PD-L1 blockade for patients with MCC.</p><p><strong>Methods: </strong>PubMed, Cochrane, and Embase were searched for studies evaluating patients with MCC undergoing PD-1/PD-L1 treatment. The estimated outcomes were overall response rate (ORR), disease control rate (DCR), progression-free survival (PFS), overall survival (OS), and treatment-related adverse events (TRAEs). We performed the meta-analysis using RStudio v4.4.2 software.</p><p><strong>Results: </strong>A total of 14 reports of 13 different studies encompassing 615 patients were included. The median age ranged from 64 to 77 years. Median follow-up ranged from 7.9 months to 59.3 months. Pooled OS rates at 24 and 36 months were 65.05% (95% CI 44.04-81.49) and 59.58% (95% CI 39.62-76.81), respectively, while pooled PFS rates at 6, 12, and 36 months were 51.78% (95% CI 37.83-65.45), 46.12% (95% CI 29.44-63.72), and 28.73% (95% CI 16.57-45.02), in the same order. DCR proportion was 61.65% (95% CI 54.85-68.03) and ORR was 53.79% (95% CI 47.80-59.68). The frequency of TRAEs of any grade was 61.72% (95% CI 45.75-75.51) and for TRAEs of grade ≥ 3 was 17.60% (95% CI 12.28 to 24.57).</p><p><strong>Conclusions: </strong>This systematic review and meta-analysis revealed that patients with MCC undergoing treatment with PD-1/PDL-1 showed durable responses with continuous and clinically meaningful survival outcomes.</p>","PeriodicalId":9131,"journal":{"name":"BMC Cancer","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11539798/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142589347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessing the impact of cervical cancer education in two high schools in Ghana.","authors":"Florence Dedey, Josephine Nsaful, Edmund Nartey, Juliana Labi, Nii Armah Adu-Aryee, Christine Kuti, Joe-Nat Clegg-Lamptey","doi":"10.1186/s12885-024-13134-4","DOIUrl":"10.1186/s12885-024-13134-4","url":null,"abstract":"<p><strong>Background: </strong>Cervical cancer is one of the commonest female cancers in Ghana. However, it is preventable. Prevention through Human Papilloma Virus immunization and early detection by screening have their foundation in awareness and a good knowledge about the disease. Acquiring the right knowledge about cervical cancer should be earlier rather than later while mindsets are still being formed to translate into the right attitudes and behaviours later in life.</p><p><strong>Methodology: </strong>An unpaired pre- and post-test quasi experimental study was conducted at two Ghanaian senior high schools. An educational intervention was carried out comprising a drama, PowerPoint lecture, question and answer session and cervical cancer information leaflet distribution. A self-administered questionnaire was given as a pre-test and repeated as a post-test after 3 months. The total score for each domain of knowledge tested was categorized into adequate knowledge (≥ 50%) and inadequate knowledge (< 50%).</p><p><strong>Results: </strong>The number of participants in the pre- and post-test were 1,107 and 1,276 girls respectively, with average age of 16 years. General knowledge on cervical cancer improved to 94.4% from 73% following the intervention, but only 46.2% said cervical cancer was curable following the education. Knowledge on symptoms improved from 78 to 87.1% and risk factor knowledge improved from 81.8 to 89.3%. After the intervention, 37% from an initial 42% still thought that having sex at a young age (adolescence) was not a risk factor. Screening and prevention knowledge improved from 82.9 to 91% but only 37.2% knew the recommended age to begin screening with pap smears, even after the education. Overall knowledge on cervical cancer after the education significantly improved from 79.1 to 92.3%.</p><p><strong>Conclusion: </strong>Knowledge of cervical cancer among young girls in two High Schools, improved with the educational intervention. Areas of education to be emphasized are: cervical cancer is curable if diagnosed early, increased risk with early onset of sexual activity, and recommended age to start screening. Educating young girls on cervical cancer increases their awareness and gives them adequate knowledge which should influence their attitudes and behaviour towards cervical cancer in the future. It should be considered for adoption into high school curricula.</p>","PeriodicalId":9131,"journal":{"name":"BMC Cancer","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11542458/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142589226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mesenchymal stem cell-derived exosomes carrying miR-486-5p inhibit glycolysis and cell stemness in colorectal cancer by targeting NEK2.","authors":"Facai Cui, Yu Chen, Xiaoyu Wu, Weifeng Zhao","doi":"10.1186/s12885-024-13086-9","DOIUrl":"10.1186/s12885-024-13086-9","url":null,"abstract":"<p><p>Colorectal cancer (CRC) is a major global concern. Mesenchymal stem cell-derived exosomes (MSC-EXOs) have demonstrated efficacy as a therapeutic approach for colorectal cancer. However, the precise mechanism by which MSC-EXOs treat colorectal cancer remains unclear. Human umbilical cord (hUC)-MSC-EXOs were isolated and identified. Cell Counting Kit-8 (CCK-8), Transwell, and colony formation assays were used to assess the activity of CRC cells. Glucose consumption, lactic acid production, and extracellular acidification rate (ECAR) were measured to assess glycolytic activity. Cell stemness was assessed using a sphere-formation assay. Furthermore, MSC-exosomal microRNAs (miRNAs) in CRC tissues were analyzed using the EVmiRNA database, and aberrantly expressed miRNAs in CRC cells were obtained from the Gene Expression Omnibus (GEO) database. The binding relationship between miR-486-5p and the never in mitosis gene A-related kinase 2 (NEK2) was predicted using the Starbase database and validated through RNA binding protein immunoprecipitation (RIP) and dual luciferase assays. These results showed that hUC-MSC-EXOs inhibited the proliferation and metastasis of CRC cells. Moreover, glycolysis and stemness abilities of CRC cells also decreased after treatment with hUC-MSC-EXOs. miR-486-5p was found to be enriched in hUC-MSC-EXOs and significantly downregulated in CRC cells. miR-486-5p directly bound to NEK2. Overexpression of NEK2 reversed the inhibitory effect of miR-486-5p on CRC cell glycolysis and stemness. Our study highlights that hUC-MSC-EXO miR-486-5p inhibits glycolysis and cell stemness in CRC by targeting NEK2. This finding offers compelling evidence supporting the potential application of hUC-MSC-EXOs in the treatment of CRC.</p>","PeriodicalId":9131,"journal":{"name":"BMC Cancer","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11539302/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142589365","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Early-life antibiotic exposure aggravate the metabolic dysfunction-associated steatotic liver disease associated hepatocellular carcinoma.","authors":"Panpan Tian, Xinyu Tian, Lifen Gao, Chunhong Ma, Xiaohong Liang","doi":"10.1186/s12885-024-13136-2","DOIUrl":"10.1186/s12885-024-13136-2","url":null,"abstract":"<p><strong>Background: </strong>Metabolic dysfunction-associated steatotic liver disease (MASLD) asscociated hepatocellular carcinoma (HCC) is becoming a growing concern in global healthcare. The early-life gut microbiota plays a crucial role in maintaining healthy. However, the impact of early-life gut microbiota dysbiosis on the advancement of MASLD-HCC remains inadequately understood.</p><p><strong>Methods: </strong>In the present study, we investigated the role of early-life gut microbiota in the development of MASLD-HCC in streptozotocin and high-fat diet (STZ-HFD) induced mouse model. We recorded the body weight and lifespan, and dynamically monitored the level of alanine aminotransferase (ALT), aspartate aminotransferase (AST), triglyceride (TG), total cholesterol (T-CHO) and blood glucose in the serum monthly. In addition, we examined various immune cells present in the liver, such as T cells, B cells, NK cells, NKT cells, αβT cells, γδT cells, macrophage and MDSC cells by flow cytometry and conducted liquid chromatography mass spectrometry (LC-MS) based analysis on liver tissue from control and early-life antibiotic exposure mice (early-Abx) MASLD-HCC mice.</p><p><strong>Results: </strong>We found that early-Abx mice suffered from more severe tumor burden and further confirmed that hepatocytes and immune cells were all disturbed. Importantly, early-life antibiotic exposure alters the liver metabolic profiling especially glycerophospholipids and lipid accumulation. Furthermore, mice exposed to antibiotics in early-life showed disturbances in glucose metabolism and developed insulin resistance.</p><p><strong>Conclusions: </strong>Collectively, our findings revealed that early-life antibiotic exposure accelerated the progression of MASLD-HCC by impairing the hepatocytes, immune homeostasis and metabolites persistently, highlighting the importance of the early-life microbiota in the development of MASLD-HCC.</p>","PeriodicalId":9131,"journal":{"name":"BMC Cancer","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11539558/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142589252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigating the role of non-synonymous variant D67N of ADGRE2 in chronic myeloid leukemia.","authors":"Ayesha Afzal, Harooma Jamshaid, Yasmin Badshah, Maria Shabbir, Janeen H Trembley, Sameen Zafar, Ghulam Murtaza Kamal, Tayyaba Afsar, Fohad Mabood Husain, Suhail Razak","doi":"10.1186/s12885-024-13108-6","DOIUrl":"10.1186/s12885-024-13108-6","url":null,"abstract":"<p><strong>Background: </strong>Chronic myeloid leukaemia (CML) is a type of blood cancer that begins in the hematopoietic stem cells. It is primarily characterized by a specific chromosomal aberration, the Philadelphia chromosome. While the fusion gene is a major contributor to CML, several other genes including ADGRE2, that are reported as highly expressed in hematopoietic stem cells and could be utilized as a therapeutic marker in leukemic patients are implicated in the disease's progression. Until recently, little research had been conducted to identify single nucleotide polymorphisms (SNPs) associated with CML. Therefore, this study aims to investigate the influence of non-synonymous variants on the structure and function of the gene encoding adhesion G protein-coupled receptor E2, ADGRE2, and to evaluate their association with CML and its clinical and pathological characteristics.</p><p><strong>Methods: </strong>Non-synonymous SNPs of ADGRE2 were retrieved from the ENSEMBL, COSMIC, and gnomAD genome browsers, and the pathogenicity of deleterious variants was assessed using several established computational tools, including SIFT, CADD, REVEL, PolyPhen, and MetaLR.</p><p><strong>Results: </strong>Various in silico analyses explored the impact of damaging SNP on the function, stability, and structure of EGF-like modules containing mucin-like hormone receptor-like2 (EMR2) protein encoded by the ADGRE2 gene. Genotype analysis was performed on collected blood samples, revealing that altered genotype TT of variant rs765071211 (C/T) was associated significantly with CML patients compared to the control. Further in vitro and in vivo analyses suggest that this SNP holds potential for clinical translation.</p>","PeriodicalId":9131,"journal":{"name":"BMC Cancer","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11536965/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142581982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Predicting radiation pneumonitis in lung cancer using machine learning and multimodal features: a systematic review and meta-analysis of diagnostic accuracy.","authors":"Zhi Chen, GuangMing Yi, XinYan Li, Bo Yi, XiaoHui Bao, Yin Zhang, XiaoYue Zhang, ZhenZhou Yang, Zhengjun Guo","doi":"10.1186/s12885-024-13098-5","DOIUrl":"10.1186/s12885-024-13098-5","url":null,"abstract":"<p><strong>Objectives: </strong>To evaluate the diagnostic accuracy of machine learning models incorporating multimodal features for predicting radiation pneumonitis in lung cancer through a systematic review and meta-analysis.</p><p><strong>Methods: </strong>Relevant studies were identified through a systematic search of PubMed, Web of Science, Embase, and the Cochrane Library from October 2003 to December 2023. Additional studies were located by reviewing bibliographies and relevant websites. Two independent researchers screened titles, abstracts, and full-text articles according to predefined inclusion and exclusion criteria. Data extraction was performed using standardized forms, and study quality was assessed using the Quality Assessment of Diagnostic Accuracy Studies-2 tool. The primary outcomes, including combined sensitivity, specificity, positive likelihood ratio (PLR), negative likelihood ratio (NLR), diagnostic odds ratio (DOR), and area under the curve (AUC), were calculated using STATA MP-64 software(Stata Corporation LLC, College Station, USA) with a random-effects model. Meta-analysis was conducted to synthesize diagnostic accuracy measures, and analyses of heterogeneity and publication bias were performed.</p><p><strong>Results: </strong>A total of 1,406 patients with primary lung cancer were included in this systematic review, drawing data from 9 studies. The pooled analysis revealed a sensitivity of 0.74 [0.58-0.85] and a specificity of 0.91 [0.87-0.95] for machine learning models in diagnosing radiation pneumonitis. The positive likelihood ratio (PLR) was 8.69 [5.21-14.50], the negative likelihood ratio (NLR) was 0.28 [0.16-0.49], and the diagnostic odds ratio (DOR) was 30.73 [11.96-78.97]. The area under the curve (AUC) was 0.93 [0.90-0.95], indicating excellent diagnostic performance. Meta-regression analysis identified that the number of machine learning models, year of publication, and study design contributed to heterogeneity among studies. No evidence of publication bias was found. Overall, machine learning models incorporating multimodal characteristics demonstrated 75% accuracy in predicting moderate to severe radiation pneumonitis.</p><p><strong>Conclusion: </strong>In conclusion, by integrating the current machine learning (ML) algorithm's ability in big data mining, a predictive model can be constructed by combining multi-modal features such as genetics, imaging, and cell factors. By selecting multiple machine learning algorithm frameworks and competing for the best combination model based on research goals, the reliability and accuracy of the radiation pneumonitis prediction model can be greatly improved.</p><p><strong>Trial registration: </strong>PROSPERO (CRD42024497599).</p>","PeriodicalId":9131,"journal":{"name":"BMC Cancer","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11539622/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142581983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Safety and efficacy of PD-1/PD-L1 immune checkpoint inhibitors in patients with pre-treated advanced stage malignant mesothelioma: a systematic review and meta-analysis.","authors":"Amjad Zafar, Asma Abdul Rashid, Abdul Moeed, Muhammad Junaid Tahir, Ahmad Jamal Khan, Oadi N Shrateh, Ali Ahmed","doi":"10.1186/s12885-024-13127-3","DOIUrl":"10.1186/s12885-024-13127-3","url":null,"abstract":"<p><strong>Background: </strong>Malignant mesothelioma is an aggressive cancer with poor prognosis. Programmed cell death protein-1 (PD-1) and its ligand 1 (PD-L1) immune checkpoint inhibitors (ICIs) have recently presented as a viable option in some first line but primarily as a second-line treatment of advanced-stage malignant mesothelioma (asMM). Therefore, this systematic review and meta-analysis aims to assess the safety and efficacy of PD-1/L-1 ICIs in advanced-stage malignant mesothelioma.</p><p><strong>Methods: </strong>PubMed, Scopus, and Cochrane databases were searched for all studies assessing the safety and efficacy of anti PD-1/PD-L1 agents. Primary outcomes were objective response rate (ORR) and disease control rate (DCR). Secondary outcomes were median progression free (mPFS) and overall survival (mOS). Safety outcomes were treatment- (TRAEs) and immune-related adverse events (IRAEs). A random-effects meta-analysis was performed to pool medians and to derive event rates.</p><p><strong>Results: </strong>A total of 15 studies were included with total of 1064 asMM patients. ORR and DCR were 16% and 57%, respectively. A pooled mPFS was 4.53 (CI: 3.40-5.65) and mOS was 10.51 (CI: 9.03-12.00). Overall TRAEs had an event rate of 0.69 (0.50-0.83) whereas IRAEs had an event rate of 0.28 (0.15-0.46). There were no significant differences between pembrolizumab, nivolumab primarily, and avelumab subgroups for all the outcomes. Additionally, meta-regression found no covariate to be a significant factor in ORR and DCR.</p><p><strong>Conclusion: </strong>In this meta-analysis we found that anti-PD1/PD-L1 treatment could be useful in pretreated asMM as they had at least comparable or greater mPFS, mOS, ORR, and DCR than other second-line agents currently being used.</p><p><strong>Registration number: </strong>This systematic review was registered at PROSPERO prior to the literature search, CRD42023442350.</p>","PeriodicalId":9131,"journal":{"name":"BMC Cancer","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11536716/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142581984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficacy and toxicity of lurbinectedin in subsequent systemic therapy of extensive-stage small cell lung cancer: a meta-analysis.","authors":"Jiayi Tang, Tianlei Wang, Hongwei Wu, Xinrui Bao, Ke Xu, Tao Ren","doi":"10.1186/s12885-024-13104-w","DOIUrl":"10.1186/s12885-024-13104-w","url":null,"abstract":"<p><strong>Objective: </strong>This study aimed to systematically analyze the efficacy and toxicity of lurbinectedin as a second-line or subsequent treatment for extensive-stage small cell lung cancer (ES-SCLC).</p><p><strong>Methods: </strong>Candidate studies were identified in PubMed, Embase, Cochrane Library, ClinicalTrials.gov, CNKI, and Wanfang databases up to 1 May 2024. Objective remission rate (ORR), disease control rate (DCR), duration of response (DOR), progression-free survival (PFS), overall survival (OS), and adverse events (AEs) were extracted, respectively. The efficacy and toxicity of lurbinectedin in ES-SCLC were analyzed by meta-analysis.</p><p><strong>Results: </strong>Six eligible prospective studies were included in this meta-analysis, including 536 patients with ES-SCLC who received second-line or subsequent treatment. In pooled analysis, the ORR of lurbinectedin was 35% (95% confidence interval [CI] 29-41), DCR was 67% (95%CI 58-76), DOR was 5.33 months (95%CI 4.51-6.16), PFS was 3.38 months (95%CI 2.59-4.17), and OS was 7.49 months (95%CI 5.11-9.87). The incidence of AEs and severe adverse events (SAEs) was 92% (95%CI 78-100) and 37% (95%CI 19-57), respectively. The most common AEs were leukopenia, neutropenia, anemia, and thrombocytopenia, with incidences of 81% (68-91), 74% (57-88), 73% (35-98) and 57% (46-68), respectively.</p><p><strong>Conclusion: </strong>As a promising alternative for second-line treatment for ES-SCLC, lurbinectedin has a certain level of efficacy and a favorable safety profile. The integration of lurbinectedin with other therapeutic modalities presents an emerging area warranting further investigation.</p>","PeriodicalId":9131,"journal":{"name":"BMC Cancer","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11533368/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142575137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sentinel lymph node biopsy in cT1-2N0 minor salivary gland cancer in oral cavity.","authors":"Peng Li, Xu Zhang, Qigen Fang, Wei Du","doi":"10.1186/s12885-024-13107-7","DOIUrl":"10.1186/s12885-024-13107-7","url":null,"abstract":"<p><strong>Objective: </strong>To evaluate the efficacy of sentinel lymph node biopsy (SLNB) in cT1/2N0 minor salivary gland cancer (mSGC) located within the oral cavity.</p><p><strong>Methods: </strong>A retrospective analysis was conducted on patients diagnosed with cT1/2N0 oral mSGC, who were categorized into two groups based on neck management approaches. The impact of SLNB versus observation on regional control and overall survival was assessed using a Cox model.</p><p><strong>Results: </strong>A total of 177 patients were included in the study, with 53 cases undergoing SLNB. All patients had at least one sentinel lymph node, with the majority having two sentinel lymph nodes. The sentinel lymph nodes were predominantly situated in level I, followed by level II. Four patients had positive sentinel lymph nodes, all of whom had primary tumors in the tongue or the floor of the mouth, and were classified as cT2 stage. This yielded a sensitivity and specificity of 100%, a false negative rate of 0%, and a negative predictive value of 100% for SLNB in predicting occult metastasis. In terms of regional control, SLNB exhibited a reduced hazard ratio of 0.90 (95% confidence interval: 0.64-0.96) compared to observation. However, SLNB did not confer a superior overall survival benefit compared to observation.</p><p><strong>Conclusion: </strong>In patients with cT1/2N0 oral mSGC, SLNB proved to be both technically feasible and oncologically safe. When contrasted with observation, SLNB was associated with enhanced regional control, particularly recommending its use for cases of cT2 mSGC arising from the tongue or the floor of the mouth.</p>","PeriodicalId":9131,"journal":{"name":"BMC Cancer","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11533395/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142575170","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Osteosarcoma cells depend on MCL-1 for survival, and osteosarcoma metastases respond to MCL-1 antagonism plus regorafenib in vivo.","authors":"Yanhao Ji, Michael A Harris, Lucas M Newton, Tiffany J Harris, W Douglas Fairlie, Erinna F Lee, Christine J Hawkins","doi":"10.1186/s12885-024-13088-7","DOIUrl":"10.1186/s12885-024-13088-7","url":null,"abstract":"<p><p>Osteosarcoma is the most common form of primary bone cancer, which primarily afflicts children and adolescents. Chemotherapy, consisting of doxorubicin, cisplatin and methotrexate (MAP) increased the 5-year osteosarcoma survival rate from 20% to approximately 60% by the 1980s. However, osteosarcoma survival rates have remained stagnant for several decades. Patients whose disease fails to respond to MAP receive second-line treatments such as etoposide and, in more recent years, the kinase inhibitor regorafenib. BCL-2 and its close relatives enforce cellular survival and have been implicated in the development and progression of various cancer types. BH3-mimetics antagonize pro-survival members of the BCL-2 family to directly stimulate apoptosis. These drugs have been proven to be efficacious in other cancer types, but their use in osteosarcoma has been relatively unexplored to date. We investigated the potential efficacy of BH3-mimetics against osteosarcoma cells in vitro and examined their cooperation with regorafenib in vivo. We demonstrated that osteosarcoma cell lines could be killed through inhibition of MCL-1 combined with BCL-2 or BCL-x_L antagonism. Inhibition of MCL-1 also sensitized osteosarcoma cells to killing by second-line osteosarcoma treatments, particularly regorafenib. Importantly, we found that inhibition of MCL-1 with the BH3-mimetic S63845 combined with regorafenib significantly prolonged the survival of mice bearing pulmonary osteosarcoma metastases. Together, our results highlight the importance of MCL-1 in osteosarcoma cell survival and present a potential therapeutic avenue that may improve metastatic osteosarcoma patient outcomes.</p>","PeriodicalId":9131,"journal":{"name":"BMC Cancer","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11533409/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142575153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}