Pathology & Oncology Research最新文献

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A case report of recurrent leiomyosarcoma with chondrosarcoma differentiation in the abdominal wall and a review of the literature. 腹壁复发性平滑肌肉瘤伴软骨肉瘤分化1例并文献复习。
IF 2.8 4区 医学
Pathology & Oncology Research Pub Date : 2023-01-01 DOI: 10.3389/pore.2023.1611109
Xuan Zuo, Wei L Wu, Peng Shi, Tian M Liu, Na Yu, Lei Li
{"title":"A case report of recurrent leiomyosarcoma with chondrosarcoma differentiation in the abdominal wall and a review of the literature.","authors":"Xuan Zuo,&nbsp;Wei L Wu,&nbsp;Peng Shi,&nbsp;Tian M Liu,&nbsp;Na Yu,&nbsp;Lei Li","doi":"10.3389/pore.2023.1611109","DOIUrl":"https://doi.org/10.3389/pore.2023.1611109","url":null,"abstract":"<p><p>Leiomyosarcoma with heterologous differentiation is relatively rare. To date, only 19 cases have been reported in the English literature. Heterologous components frequently show histological pleomorphism, while those exhibiting well-differentiated morphology are seldom reported. Here, we report a 34-year-old female diagnosed with leiomyosarcoma and developed abdominal wall recurrence 8 years after primary surgery. The recurrent tumor mainly comprised well-differentiated chondrosarcoma except a single focus of leiomyosarcoma. Due to the rarity and prolonged onset of such a transition, our case provides insight into the understanding of this phenomenon.</p>","PeriodicalId":19981,"journal":{"name":"Pathology & Oncology Research","volume":"29 ","pages":"1611109"},"PeriodicalIF":2.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10207330/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9532913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Three-dimensional analysis of perineural invasion in extrahepatic cholangiocarcinoma using tissue clearing. 肝外胆管癌神经周围浸润的三维组织清除分析。
IF 2.8 4区 医学
Pathology & Oncology Research Pub Date : 2023-01-01 DOI: 10.3389/pore.2023.1611284
Hirokazu Ogasawara, Tadashi Yoshizawa, Kiyoko Oshima, Kenta Ogasawara, Shunsuke Kubota, Shintaro Goto, Satoko Morohashi, Taiichi Wakiya, Norihisa Kimura, Keinosuke Ishido, Hiroshi Kijima, Kenichi Hakamada
{"title":"Three-dimensional analysis of perineural invasion in extrahepatic cholangiocarcinoma using tissue clearing.","authors":"Hirokazu Ogasawara,&nbsp;Tadashi Yoshizawa,&nbsp;Kiyoko Oshima,&nbsp;Kenta Ogasawara,&nbsp;Shunsuke Kubota,&nbsp;Shintaro Goto,&nbsp;Satoko Morohashi,&nbsp;Taiichi Wakiya,&nbsp;Norihisa Kimura,&nbsp;Keinosuke Ishido,&nbsp;Hiroshi Kijima,&nbsp;Kenichi Hakamada","doi":"10.3389/pore.2023.1611284","DOIUrl":"https://doi.org/10.3389/pore.2023.1611284","url":null,"abstract":"<p><p>Perineural invasion (PNI) is a characteristic invasion pattern of distal cholangiocarcinoma (DCC). Conventional histopathologic examination is a challenging approach to analyze the spatial relationship between cancer and neural tissue in full-thickness bile duct specimens. Therefore, we used a tissue clearing method to examine PNI in DCC with three-dimensional (3D) structural analysis. The immunolabeling-enabled 3D imaging of solvent-cleared organs method was performed to examine 20 DCC specimens from five patients and 8 non-neoplastic bile duct specimens from two controls. The bile duct epithelium and neural tissue were labeled with CK19 and S100 antibodies, respectively. Two-dimensional hematoxylin/eosin staining revealed only PNI around thick nerve fibers in the deep layer of the bile duct, whereas PNI was not identified in the superficial layer. 3D analysis revealed that the parts of DCC closer to the mucosa exhibited more nerves than the normal bile duct. The nerve fibers were continuously branched and connected with thick nerve fibers in the deep layer of the bile duct. DCC formed a tubular structure invading from the epithelium and extending around thin nerve fibers in the superficial layer. DCC exhibited continuous infiltration around the thick nerve fibers in the deep layer. This is the first study using a tissue clearing method to examine the PNI of DCC, providing new insights into the underlying mechanisms.</p>","PeriodicalId":19981,"journal":{"name":"Pathology & Oncology Research","volume":"29 ","pages":"1611284"},"PeriodicalIF":2.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10323134/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9813016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Single-cell transcriptome analysis reveals the clinical implications of myeloid-derived suppressor cells in head and neck squamous cell carcinoma. 单细胞转录组分析揭示了髓源性抑制细胞在头颈部鳞状细胞癌中的临床意义。
IF 2.8 4区 医学
Pathology & Oncology Research Pub Date : 2023-01-01 DOI: 10.3389/pore.2023.1611210
Wenru Jiang, Kangyao Hu, Xiaofei Liu, Jili Gao, Liping Zhu
{"title":"Single-cell transcriptome analysis reveals the clinical implications of myeloid-derived suppressor cells in head and neck squamous cell carcinoma.","authors":"Wenru Jiang,&nbsp;Kangyao Hu,&nbsp;Xiaofei Liu,&nbsp;Jili Gao,&nbsp;Liping Zhu","doi":"10.3389/pore.2023.1611210","DOIUrl":"https://doi.org/10.3389/pore.2023.1611210","url":null,"abstract":"<p><p>Head and neck squamous cell carcinoma (HNSC) is the most common malignant tumor that arises in the epithelium of the head and neck regions. Myeloid-derived suppressor cells (MDSCs) are one of the tumor-infiltrating immune cell populations, which play a powerful role in inhibiting anti-tumor immune response. Herein, we employed a single-cell RNA sequencing (scRNA-seq) dataset to dissect the heterogeneity of myeloid cells. We found that <i>SPP1</i> <sup>+</sup> tumor-associated macrophages (TAMs) and MDSCs were the most abundant myeloid cells in the microenvironment. By cell cluster deconvolution from bulk RNA-seq datasets of larger patient groups, we observed that highly-infiltrated MDSC was a poor prognostic marker for patients' overall survival (OS) probabilities. To better apply the MDSC OS prediction values, we identified a set of six MDSC-related genes (<i>ALDOA</i>, <i>CD52</i>, <i>FTH1</i>, <i>RTN4</i>, <i>SLC2A3</i>, and <i>TNFAIP6</i>) as the prognostic signature. In both training and test cohorts, MDSC-related prognostic signature showed a promising value for predicting patients' prognosis outcomes. Further parsing the ligand-receptor pairs of intercellular communications by CellChat, we found that MDSCs could frequently interact with cytotoxic <i>CD8</i> <sup>+</sup> T cells, <i>SPP1</i> <sup>+</sup> TAMs, and endothelial cells. These interactions likely contributed to the establishment of an immunosuppressive microenvironment and the promotion of tumor angiogenesis. Our findings suggest that targeting MDSCs may serve as an alternative and promising target for the immunotherapy of HNSC.</p>","PeriodicalId":19981,"journal":{"name":"Pathology & Oncology Research","volume":"29 ","pages":"1611210"},"PeriodicalIF":2.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10354270/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10234121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Fibroblast activation protein-α expression in fibroblasts is common in the tumor microenvironment of colorectal cancer and may serve as a therapeutic target. 成纤维细胞活化蛋白-α在结直肠癌的肿瘤微环境中普遍表达,可能作为治疗靶点。
IF 2.8 4区 医学
Pathology & Oncology Research Pub Date : 2023-01-01 DOI: 10.3389/pore.2023.1611163
K Greimelmaier, N Klopp, E Mairinger, M Wessolly, S Borchert, J Steinborn, K W Schmid, J Wohlschlaeger, F D Mairinger
{"title":"Fibroblast activation protein-α expression in fibroblasts is common in the tumor microenvironment of colorectal cancer and may serve as a therapeutic target.","authors":"K Greimelmaier,&nbsp;N Klopp,&nbsp;E Mairinger,&nbsp;M Wessolly,&nbsp;S Borchert,&nbsp;J Steinborn,&nbsp;K W Schmid,&nbsp;J Wohlschlaeger,&nbsp;F D Mairinger","doi":"10.3389/pore.2023.1611163","DOIUrl":"https://doi.org/10.3389/pore.2023.1611163","url":null,"abstract":"<p><p><b>Background:</b> Colorectal cancer (CRC) is still one of the leading causes of cancer death worldwide, emphasizing the need for further diagnostic and therapeutic approaches. Cancer invasion and metastasis are affected by the tumor microenvironment (TME), with cancer-associated fibroblasts (CAF) being the predominant cellular component. An important marker for CAF is fibroblast activation protein-α (FAP) which has been evaluated as therapeutic target for, e.g., radioligand therapy. The aim of this study was to examine CRC regarding the FAP expression as a candidate for targeted therapy. <b>Methods:</b> 67 CRC, 24 adenomas, 18 tissue samples of inflammation sites and 28 non-neoplastic, non-inflammatory tissue samples of colonic mucosa were evaluated for immunohistochemical FAP expression of CAF in tissue microarrays. The results were correlated with clinicopathological data, tumor biology and concurrent expression of additional immunohistochemical parameters. <b>Results:</b> 53/67 (79%) CRC and 6/18 (33%) inflammatory tissue specimens showed expression of FAP. However, FAP was only present in 1/24 (4%) adenomas and absent in normal mucosa (0/28). Thus, FAP expression in CRC was significantly higher than in the other investigated groups. Within the CRC cohort, expression of FAP did not correlate with tumor stage, grading or the MSI status. However, it was observed that tumors exhibiting high immunohistochemical expression of Ki-67, CD3, p53, and β-Catenin showed a significantly higher incidence of FAP expression. <b>Conclusion:</b> In the crosstalk between tumor cells and TME, CAF play a key role in carcinogenesis and metastatic spread. Expression of FAP was detectable in the majority of CRC but nearly absent in precursor lesions and non-neoplastic, non-inflammatory tissue. This finding indicates that FAP has the potential to emerge as a target for new diagnostic and therapeutic concepts in CRC. Additionally, the association between FAP expression and other immunohistochemical parameters displays the interaction between different components of the TME and demands further investigation.</p>","PeriodicalId":19981,"journal":{"name":"Pathology & Oncology Research","volume":"29 ","pages":"1611163"},"PeriodicalIF":2.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10442481/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10056728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Tumor budding as a predictor of disease-free survival in patients with cholangiocarcinoma. 肿瘤出芽作为胆管癌患者无病生存的预测因子。
IF 2.8 4区 医学
Pathology & Oncology Research Pub Date : 2023-01-01 DOI: 10.3389/pore.2023.1611216
Kyung Bin Kim, Ji Hyun Ahn, Soon Wook Kwon, Su Ji Lee, Yury Lee, Seo Young Park, Ahrong Kim, Kyung Un Choi, Chang Hun Lee, Gi Yeong Huh
{"title":"Tumor budding as a predictor of disease-free survival in patients with cholangiocarcinoma.","authors":"Kyung Bin Kim,&nbsp;Ji Hyun Ahn,&nbsp;Soon Wook Kwon,&nbsp;Su Ji Lee,&nbsp;Yury Lee,&nbsp;Seo Young Park,&nbsp;Ahrong Kim,&nbsp;Kyung Un Choi,&nbsp;Chang Hun Lee,&nbsp;Gi Yeong Huh","doi":"10.3389/pore.2023.1611216","DOIUrl":"https://doi.org/10.3389/pore.2023.1611216","url":null,"abstract":"<p><p><b>Background:</b> Tumor budding is considered a prognostic factor in several solid cancer types. However, we lack comprehensive information on the importance of tumor budding in cholangiocarcinoma. Therefore, we aimed to assess the prognostic value of tumor budding in intrahepatic and extrahepatic cholangiocarcinomas and to evaluate its correlations with other clinicopathological parameters. <b>Methods:</b> We monitored 219 patients who underwent surgery for intrahepatic or extrahepatic cholangiocarcinoma at the Pusan National University Hospital between 2012 and 2021. Tumor budding was evaluated using the International Tumor Budding Consensus Conference scoring system. Tumor budding was classified into low (0-4), intermediate (5-9), and high (≥10). For statistical analysis, tumor budding was divided into two groups based on the cut-off value of 10 (lower: 0-9 vs. higher: ≥10). The correlations between clinicopathological parameters were examined using the chi-square and Fisher's exact test. The prognostic values of the variables were analyzed using the log-rank test and Cox regression analysis. <b>Results:</b> Low, intermediate, and high tumor buddings were identified in 135 (61.6%), 63 (28.8), and 21 (9.6%), patients, respectively. Higher tumor budding was related to the presence of lymphatic invasion (<i>p</i> = 0.017), higher tumor grade (<i>p</i> = 0.001), higher N category (<i>p</i> = 0.034). In the univariable and multivariable analyses, higher tumor budding was associated with shorter disease-free survival in 97 (44.3%) patients who underwent R0 resection (<i>p</i> < 0.001 and <i>p</i> = 0.011). Tumor budding did not significantly correlate with disease-specific survival in entire patients. <b>Conclusion:</b> Tumor budding may serve as a prognostic factor for intrahepatic and extrahepatic cholangiocarcinomas treated with R0 resection.</p>","PeriodicalId":19981,"journal":{"name":"Pathology & Oncology Research","volume":"29 ","pages":"1611216"},"PeriodicalIF":2.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10232744/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9636837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Increased Kremen2 predicts worse prognosis in colon cancer. clemen2升高预示结肠癌预后较差。
IF 2.8 4区 医学
Pathology & Oncology Research Pub Date : 2023-01-01 DOI: 10.3389/pore.2023.1611082
Junxian Long, Fengyun Cong, Yousheng Wei, Jungang Liu, Weizhong Tang
{"title":"Increased Kremen2 predicts worse prognosis in colon cancer.","authors":"Junxian Long,&nbsp;Fengyun Cong,&nbsp;Yousheng Wei,&nbsp;Jungang Liu,&nbsp;Weizhong Tang","doi":"10.3389/pore.2023.1611082","DOIUrl":"https://doi.org/10.3389/pore.2023.1611082","url":null,"abstract":"<p><p><b>Background:</b> Colon cancer (CC) is the fifth most prevalent cancer around the globe and poses a major risk to human health. Even though Kremen2 serves as a prognostic indicator in individuals with malignant tumours, its role in evaluating the prognosis of individuals with colon cancer has not been confirmed. <b>Methods:</b> Here, we examined the protein expression of Kremen2 in CC tissues and paired adjacent normal tissues by immunohistochemistry (IHC), then analyzed the clinical and RNA-seq data presented in The Cancer Genome Atlas (TCGA) database to confirm the relationship between Kremen2 levels and CC. In addition, the associations between Kremen2 mRNA expression and infiltrating immune cells were examined. <b>Results:</b> The study showed that the mRNA expression and protein level of Kremen2 were increased in CC tissues compared with adjacent normal tissues. According to Kaplan-Meier analysis, high Kremen2 expression in CC was linked to poor overall survival and progression-free survival. Clinical correlation analysis highlighted that a high level of Kremen2 expression was strongly linked with tumour progression, particularly lymph node metastasis. Cox regression analysis highlighted that Kremen2 was an independent prognostic indicator for CC. Bioinformatic studies highlighted that Kremen2 might be associated with the immune status in CC. <b>Conclusion:</b> Increased Kremen2 could serve as a potential prognostic CC biomarker.</p>","PeriodicalId":19981,"journal":{"name":"Pathology & Oncology Research","volume":"29 ","pages":"1611082"},"PeriodicalIF":2.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10130194/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9761965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
High expression of TMEM200A is associated with a poor prognosis and immune infiltration in gastric cancer. TMEM200A高表达与胃癌预后不良和免疫浸润相关。
IF 2.8 4区 医学
Pathology & Oncology Research Pub Date : 2023-01-01 DOI: 10.3389/pore.2023.1610893
Hongyang Deng, Tengfei Li, Fengxian Wei, Wei Han, Xiaodong Xu, Youcheng Zhang
{"title":"High expression of TMEM200A is associated with a poor prognosis and immune infiltration in gastric cancer.","authors":"Hongyang Deng,&nbsp;Tengfei Li,&nbsp;Fengxian Wei,&nbsp;Wei Han,&nbsp;Xiaodong Xu,&nbsp;Youcheng Zhang","doi":"10.3389/pore.2023.1610893","DOIUrl":"https://doi.org/10.3389/pore.2023.1610893","url":null,"abstract":"<p><p><b>Background:</b> Gastric cancer (GC) is one of the global malignant tumors with high incidence and poor prognosis. Exploring new GC molecular markers is important to improve GC prognosis. Transmembrane protein 200A (TMEM200A) is a member of the family of transmembrane proteins (TMEM). This study is the first to investigate the potential function of TMEM200A and its relationship with immune infiltration in GC. <b>Methods:</b> The differential expression of TMEM200A was determined through the Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) databases. The receiver operating characteristic (ROC) curve was drawn to assess the diagnostic value of TMEM200A for GC. The relationship between TMEM200A and the clinical characteristics of patients with GC was investigated using the Wilcoxon test and the Kruskal-Wallis test. The effect of TMEM200A on overall survival (OS) was identified using the Kaplan-Meier method, the Log-rank test, the univariate/multivariate Cox regression analysis, and the nomogram prediction model. The co-expressed genes and gene set enrichment analysis (GSEA) were used to explore the potential biological functions of TMEM200A. We used the Tumor Immune Estimation Resource (TIMER) database and the ssGSEA algorithm to estimate the relationship between TMEM200A and immune cell infiltration. Furthermore, we investigated the correlation of TMEM200A with immune checkpoint/immune cell surface markers using the TCGA-STAD data set. Finally, we identified prognosis-related methylation sites in TMEM200A using MethSurv. <b>Results:</b> TMEM200A was highly expressed in GC tissues. TMEM200A had a good diagnostic value for GC. High expression of TMEM200A may shorten the OS of GC patients and may be an independent risk factor for OS in GC patients. TMEM200A participates in the construction of a predictive model with a good predictive effect on the survival rate of GC patients at 1, 3, and 5 years. Co-expressed genes and GSEA indicated that TMEM200A may be an adhesion molecule closely associated with tumor invasion and metastasis. In addition, TMEM200A may be significantly associated with immune cell infiltration and immune checkpoint expression. We also found that TMEM200A contains three methylation sites associated with a poor prognosis. <b>Conclusion:</b> Upregulated TMEM200A may be a promising prognostic marker for GC and is closely associated with the tumor microenvironment (TME).</p>","PeriodicalId":19981,"journal":{"name":"Pathology & Oncology Research","volume":"29 ","pages":"1610893"},"PeriodicalIF":2.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9892064/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10665458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
MDM2 promotes cancer cell survival through regulating the expression of HIF-1α and pVHL in retinoblastoma. MDM2通过调节HIF-1α和pVHL在视网膜母细胞瘤中的表达促进癌细胞存活。
IF 2.8 4区 医学
Pathology & Oncology Research Pub Date : 2023-01-01 DOI: 10.3389/pore.2023.1610801
Shouhua Zhang, Hongyan Xu, Weiming Li, Jianfeng Ji, Qifang Jin, Leifeng Chen, Qiang Gan, Qiang Tao, Yong Chai
{"title":"MDM2 promotes cancer cell survival through regulating the expression of HIF-1α and pVHL in retinoblastoma.","authors":"Shouhua Zhang,&nbsp;Hongyan Xu,&nbsp;Weiming Li,&nbsp;Jianfeng Ji,&nbsp;Qifang Jin,&nbsp;Leifeng Chen,&nbsp;Qiang Gan,&nbsp;Qiang Tao,&nbsp;Yong Chai","doi":"10.3389/pore.2023.1610801","DOIUrl":"https://doi.org/10.3389/pore.2023.1610801","url":null,"abstract":"<p><p>Hypoxia is an important tumor feature and hypoxia-inducible factor 1 (HIF-1) is a master regulator of cell response to hypoxia. Mouse double minute 2 homolog (MDM2) promotes cancer cell survival in retinoblastoma (RB), with the underlying mechanism remaining elusive. In this study, we investigated the role of MDM2 and its relation to HIF-1α in RB. Expression analysis on primary human RB samples showed that MDM2 expression was positively correlated with that of HIF-1α while negatively correlated with von Hippel-Lindau protein (pVHL), the regulator of HIF-1α. In agreement, RB cells with MDM2 overexpression showed increased expression of HIF-1α and decreased expression of pVHL, while cells with MDM2 siRNA knockdown or MDM2-specific inhibitor showed the opposite effect under hypoxia. Further immuno-precipitation analysis revealed that MDM2 could directly interact with pVHL and promotes its ubiquitination and degradation, which consequently led to the increase of HIF-1α. Inhibition of MDM2 and/or HIF-1α with specific inhibitors induced RB cell death and decreased the stem cell properties of primary RB cells. Taken together, our study has shown that MDM2 promotes RB survival through regulating the expression of pVHL and HIF-1α, and targeting MDM2 and/or HIF-1α represents a potential effective approach for RB treatment.</p>","PeriodicalId":19981,"journal":{"name":"Pathology & Oncology Research","volume":"29 ","pages":"1610801"},"PeriodicalIF":2.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9892057/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10665459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Prognostic value of pretreatment Controlling Nutritional Status score in esophageal cancer: a meta-analysis. 食管癌前处理控制营养状态评分的预后价值:一项荟萃分析。
IF 2.8 4区 医学
Pathology & Oncology Research Pub Date : 2023-01-01 DOI: 10.3389/pore.2023.1611221
Jing Lv, Peirui Chen, Jianqiang Wu, Caihong Hu
{"title":"Prognostic value of pretreatment Controlling Nutritional Status score in esophageal cancer: a meta-analysis.","authors":"Jing Lv,&nbsp;Peirui Chen,&nbsp;Jianqiang Wu,&nbsp;Caihong Hu","doi":"10.3389/pore.2023.1611221","DOIUrl":"https://doi.org/10.3389/pore.2023.1611221","url":null,"abstract":"<p><p><b>Background and purpose:</b> The association between the pretreatment Controlling Nutritional Status (CONUT) score and the prognosis of esophageal cancer patients remains unclear. The aim of this meta-analysis was to further elucidate the prognostic role of the pretreatment CONUT score in esophageal cancer based on current evidence. <b>Methods:</b> The PubMed, Embase, Web of Science and CNKI databases were searched up to 27 September 2022. The primary and secondary outcomes were overall survival (OS) and progression-free survival (PFS)/cancer-specific survival (CSS), and the hazard ratio (HR) and 95% confidence interval (CI) were pooled for analysis. <b>Results:</b> A total of 11 retrospective studies involving 3,783 participants were included. The pooled results demonstrated that a higher pretreatment CONUT score was significantly related to poor OS (HR = 1.82, 95% CI: 1.31-2.54, <i>p</i> < 0.001), and subgroup analysis stratified by pathological type showed similar results. In addition, the pretreatment CONUT score was associated with poor PFS (HR = 1.19, 95% CI: 1.10-1.28, <i>p</i> < 0.001) and CSS (HR = 2.67, 95% CI: 1.77-4.02, <i>p</i> < 0.001). <b>Conclusion:</b> The pretreatment CONUT score was predictive of worse prognosis in esophageal cancer, and patients with a higher CONUT score showed worse survival.</p>","PeriodicalId":19981,"journal":{"name":"Pathology & Oncology Research","volume":"29 ","pages":"1611221"},"PeriodicalIF":2.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10333492/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10193740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Indolent T-lymphoblastic proliferation with fibrolamellar hepatocellular carcinoma developed after colorectal adenocarcinoma: a case report. 结直肠癌后并发纤维板层性肝细胞癌的惰性t淋巴细胞增殖1例。
IF 2.8 4区 医学
Pathology & Oncology Research Pub Date : 2023-01-01 DOI: 10.3389/pore.2023.1611151
Wen Han, Bei Wang, Xiang Yong, Yi Zhang, Mingyu Shao, Chun Wang
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