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Although many studies have been conducted to explore the relationship between mast cells (MC) and angiogenesis, comparison of this relationship with tumor necrosis has not been investigated to the best of our knowledge. Therefore, the relationship between MC and neovascularization in stomach, lung and ovarian malignant epithelial tumors (165 cases) in necrotizing or non-necrotizing cases was explored in this study. We immunohistochemically studied anti-mast cell tryptase antibody for MC and anti-CD34 antibody for vascular structures. MCs in the intra- tumoral and peritumoral fields, as well as vascular structures with luminal and monocellular appearances in the intratumoral field, were counted in each sample. Ten magnification fields were analyzed for each sample. In stomach and lung cases, the non-necrotizing group exhibited a greater number of MC and vascular structures in total. In ovarian cases, more MCs were counted overall in the necrotizing group, but there were fewer vascular structures. The increase in the number of MC and vascular structures in lungs and stomach in the non-necrotizing group supports the theory that MCs are involved in tumor progression. Necrosis, which can be induced on the basis of restricted neovascularization through inhibition of MCs in lung and stomach tumors, may be a treatment method.We aimed to determine the prognostic role of whole tumor-associated inflammatory cells, especially eosinophils, and stromal histological characteristics in relation to other prognostic parameters in patients with colorectal carcinoma (CRC). A total of 122 patients who underwent an operation for CRC were included in this retrospective study. Conventional (tumor grade, TNM stage and venous invasion [VI]) and other histopathological (intratumoral/peritumoral budding [ITB/PTB], desmoplasia) tumor parameters were recorded and classified by density, as were the tumor-associated inflammatory parameters (intratumoral/peritumoral lymphocytes [ITL/PTL], eosinophils [IE/PTE], overall inflammation [ITI/PTI], Crohn-like inflammation [CLI]). Cancer-specific survival data were analyzed with respect to all tumor parameters. High ITB and PTB were significantly correlated with a higher rate of pT4, VI and desmoplasia (p less then 0.05). An association of moderate ITL and extensive PTL with lesser likelihood of VI and metastasis; an association of extensive CLI with a significantly lower rate of metastasis and TNM stage IV; and minimal PTE with a significantly higher rate of pT4 stage, metastasis and ITB were detected (p less then 0.05 for each). Our findings revealed that low score tumoral budding and an increase in tumor-related inflammation were associated with lesser likelihood of poor prognostic tumor parameters. Nonetheless, given the association of an increase in PTE with lesser likelihood of ITB, pT4, metastasis, and with non-significantly for better survival rates, our findings emphasize the potential role of peritumoral eosinophils as an additional prognostic parameter in CRC.Gastrointestinal stromal tumors (GISTs) are rare neoplasms, colorectal location being met in less than 5% of cases. Knowledge about this site related particularities are limited. The aim of this study is to present our experience with colorectal GISTs between 2005 and 2018 from the clinical, morphological, and immunohistochemical perspectives, with emphasis on prognostic factors. From a total of 203 gastrointestinal stromal tumors registered, 12 were colorectal (6%). The number of colonic tumors surpassed that of the rectum (9 3) and on the right side were registered more cases than on the left side (6/3). 9 were primary tumors and 3 were recurrences. Men and women were represented equally and the age range was between 22 and 76. Tumor dimensions varied between 0.5 and 14 cm. Microscopically, spindle cell type was dominant. Mitotic rate was variable between 1 and 115/50HPFs. Accordingly, for primary tumors progression risks were assigned (low risk 2 cases, intermediate risk 3 cases and high risk 4 cases). All GISTs were CD117 and DOG1 positive. Four of the patients died of the disease.Here we review the role of GDNF, PTCH1, RNF213 illustrated by a case of renal cell carcinoma, chromophobe type (pT2a 8th pTNM edition) of the left kidney of 71-year-old man. Status of potential hotspots in 409 tumor genes were studied by means of next generation sequencing (NGS) technology (IonTorrent - Thermo Fisher Scientific, USA) using Ion AmpliSeq™ Comprehensive Cancer Panel. Next-generation sequencing (NGS) revealed mutations of GDNF (NM_001190468 c. 328C>T, p.R110W, allelic frequency 46%), PTCH1 (NM_001083607c. 2969C less then T, p.A990V, allelic frequency 7%) RNF213 (NM_001256071 c.6967C less then T, p.Q2323X, allelic frequency 7%). Our findings in relation to concise description of significance of GDNF, PTCH1, RNF213 supplement molecular characterization in area of gene profiling of renal cell carcinoma, chromophobe type, which is going to certainly deepen our knowledge on hazards in development of this peculiar kind of renal cancer. This study aims to investigate the social interest in SARS-CoV-2 and COVID-19 in the Internet media during the epidemic in Poland and serves as a complement to longitudinal surveys monitoring public perception in real time. We quantitatively analyzed "coronavirus" digital footprints on the Internet, in particular, on Google, Twitter, YouTube, Wikipedia and electronic media represented by EventRegistry, from 15.01 to 07.04.2020 (before and after official introduction of COVID-19 to Poland on 04.03.2020). https://www.selleckchem.com/products/jh-x-119-01.html We present results on trend analysis supported by statistical techniques. We identified six major temporal clusters of the interest on the topic COVID-19 1) Chinese, 2) Italian, 3) Waiting, 4) Mitigations, 5) Physical distancing and Lockdown, 6) Anti-crisis shield. There was an exponential increase of the interest when the Polish government "declared a war against disease" around 11/12.03.2020 with a massive response activity. Later on, there was a decay in the interest with additional phases related to vise to choose traditional news media for a quick dissemination of information, however for a greater impact, social media should be used. Otherwise public information campaigns might have less impact on society than expected. Traditional and social media do not only reflect reality, but also create it. Interest in COVID-19 (measured by topic intensity on the Internet) is unrelated to the officially notified viral pressure (measured by incidence) and probably physical risk of acquiring infection in Poland. As traditional media are ahead of social media in time, we advise to choose traditional news media for a quick dissemination of information, however for a greater impact, social media should be used. Otherwise public information campaigns might have less impact on society than expected.
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