Association of high histone H3K4 trimethylation level and prognosis of patients with low-TNM-stage hepatocellular carcinoma.

2012 ◽  
Vol 30 (4_suppl) ◽  
pp. 171-171 ◽  
Author(s):  
Junyao Xu ◽  
Chuanchao He ◽  
Jianlong Zhang ◽  
Jie Wang

171 Background: Along with genetic events, tumor associated epigenetic alterations including DNA methylation and post-translational histone modifications are important determinants in the initiation and progression of hepatocellular cancer (HCC) and represent promising biomarkers and therapeutic targets. Locus-specific trimethylation of histone H3 lysine 4 (H3K4me) is a well-known modification linked to the enhanced transcriptional expression of many genes activated in HCC. However its expression and association with prognosis of HCC patients remain unclear. Our aim was to assess the cellular expression pattern of H3K4me3 in HCC and its association with clinicopathologic variables and outcome. Methods: Expression of H3K4me3 and the histone methyltransferase SMYD3 was studied by western blotting and immunohistochemistry in human HCC cell lines and tumor tissue micmicroarray, which is from a well–characterized series of HCC patients(n=168). Tissue staining were assessed using blinded semiquantitative scoring. The optimal cut-point of H3K4me3 expression for prognosis was determined by the X-tile program. The prognostic significance was evaluated using Kaplan-Meier survival estimates and log-rank tests. Tumor tissue micmicroarray from another independent HCC patients cohort(n=147) was used for validation studies. Results: Expression of H3K4me3 and the histone methyltransferase SMYD3 were enhanced in HCC cell lines.In clinical tumor specimens, enhanced expression of H3K4me3 was correlated with reduced overall survival (P < 0.0001), especially in early-stage HCC patients(TNM I/II).Furthermore,both univariate and multivariate analysis revealed that H3K4me3 level was a significant and independent predictor of poor survival (hazard ratio,3.592; 95% CI, 2.302-5.605). In addition, H3K4m3 expression was positively correlated with SMYD3 expression in both testing and validation cohorts (P<0.0001). Conclusions: H3K4me3 level defines previously unrecognized subsets of HCC patients with distinct epigenetic phenotype and clinical outcome, thus can be a novel predictor for poor prognosis of HCC patients, especially within TNM I/IIstage.

2009 ◽  
Vol 27 (2) ◽  
pp. 186-192 ◽  
Author(s):  
Paul Salama ◽  
Michael Phillips ◽  
Fabienne Grieu ◽  
Melinda Morris ◽  
Nik Zeps ◽  
...  

Purpose To determine the prognostic significance of FOXP3+ lymphocyte (Treg) density in colorectal cancer compared with conventional histopathologic features and with CD8+ and CD45RO+ lymphocyte densities. Patients and Methods Tissue microarrays and immunohistochemistry were used to assess the densities of CD8+, CD45RO+, and FOXP3+ lymphocytes in tumor tissue and normal colonic mucosa from 967 stage II and stage III colorectal cancers. These were evaluated for associations with histopathologic features and patient survival. Results FOXP3+ Treg density was higher in tumor tissue compared with normal colonic mucosa, whereas CD8+ and CD45RO+ cell densities were lower. FOXP3+ Tregs were not associated with any histopathologic features, with the exception of tumor stage. Multivariate analysis showed that stage, vascular invasion, and FOXP3+ Treg density in normal and tumor tissue were independent prognostic indicators, but not CD8+ and CD45RO+. High FOXP3+ Treg density in normal mucosa was associated with worse prognosis (hazard ratio [HR] = 1.51; 95% CI, 1.07 to 2.13; P = .019). In contrast, a high density of FOXP3+ Tregs in tumor tissue was associated with improved survival (HR = 0.54; 95% CI, 0.38 to 0.77; P = .001). Conclusion FOXP3+ Treg density in normal and tumor tissue had stronger prognostic significance in colorectal cancer compared with CD8+ and CD45RO+ lymphocytes. The finding of improved survival associated with a high density of tumor-infiltrating FOXP3+ Tregs in colorectal cancer contrasts with several other solid cancer types. The inclusion of FOXP3+ Treg density may help to improve the prognostication of early-stage colorectal cancer.


2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Yoon Ho Ko ◽  
Young-Seok Cho ◽  
Hye Sung Won ◽  
Ho Jung An ◽  
Der Sheng Sun ◽  
...  

Background/Aim.Bax-interacting factor-1 (Bif-1) plays a crucial role in apoptosis and autophagy. The aim of this study was to evaluate Bif-1 protein expression and its prognostic significance in colorectal cancer (CRC).Methods.We analyzed Bif-1 protein expression in 251 resected specimens from patients with CRC by immunohistochemistry using tissue microarray.Results.Low Bif-1 expression was observed in 131 patients (52.2%) and high Bif-1 expression in 120 patients (47.8%). No significant differences were observed in clinicopathological parameters between patients with high and low Bif-1 expression. Kaplan-Meier survival analysis showed no difference in survival between patients with high and low Bif-1 expression. Stratified analysis of Bif-1 according to TNM stage demonstrated that low Bif-1 expression was significantly associated with a poor outcome in patients with stages I and II (P=0.034). Stratified multivariate analysis demonstrated that low Bif-1 expression was an independent indicator of poor prognosis (hazard ratio, 0.459; 95% confidence interval, 0.285–0.739;P=0.001).Conclusion.Patients with low levels of Bif-1 expression have shortened survival rates in CRC of stages I and II. This suggests that Bif-1 protein expression may be a useful prognostic marker in early-stage CRC.


1970 ◽  
Vol 2 (3) ◽  
pp. 198-202
Author(s):  
D Ghartimagar ◽  
A Ghosh ◽  
OP Talwar ◽  
R Narasimhan

Background: Breast cancers rarely occur in young women but are known to have more aggressive behaviors and poorer outcome. We here compare the significance of breast carcinoma in female below the age of 35 to the age over 35 whose specimens were submitted to Manipal teaching hospital, Pokhara. Materials and Methods: All cases of mastectomy with carcinoma from January 2000 to September 2011 were included in the study. Clinical and histopathological datas of all cases were reviewed and collated. Results: A total of 148 mastectomy specimens were received, among which, 23 cases (16%) were below 35 years; whereas 125 cases (84%) were above 35 years of age. In both groups, Stage II was the commonest stage but stage III was much more common in older group (33% versus 9%) and stage I was more common in younger age group (39% versus 27%). Bloom Richardson grading showed that in the older age group, grade 1 is the commonest grade (50%) while in the younger group; grade 3 is the commonest (39%). Patients were followed for a varying period of 6 months to 5 years. Two cases (2% of followed up cases) in older group and 3 cases (15% of followed up cases) in the younger group showed recurrence. Conclusion: Breast carcinoma in the patients younger than 35 years though presented at an early stage has higher grade tumor and poorer outcome. DOI: http://dx.doi.org/10.3126/jpn.v2i3.6021 JPN 2012; 2(3): 198-202


2021 ◽  
Author(s):  
Lutz Kretschmer ◽  
Christina Mitteldorf ◽  
Simin Hellriegel ◽  
Andreas Leha ◽  
Alexander Fichtner ◽  
...  

AbstractSentinel lymph node (SN) tumor burden is becoming increasingly important and is likely to be included in future N classifications in melanoma. Our aim was to investigate the prognostic significance of melanoma infiltration of various anatomically defined lymph node substructures. This retrospective cohort study included 1250 consecutive patients with SN biopsy. The pathology protocol required description of metastatic infiltration of each of the following lymph node substructures: intracapsular lymph vessels, subcapsular and transverse sinuses, cortex, paracortex, medulla, and capsule. Within the SN with the highest tumor burden, the SN invasion level (SNIL) was defined as follows: SNIL 1 = melanoma cells confined to intracapsular lymph vessels, subcapsular or transverse sinuses; SNIL 2 = melanoma infiltrating the cortex or paracortex; SNIL 3 = melanoma infiltrating the medulla or capsule. We classified 338 SN-positive patients according to the non-metric SNIL. Using Kaplan–Meier estimates and Cox models, recurrence-free survival (RFS), melanoma-specific survival (MSS) and nodal basin recurrence rates were analyzed. The median follow-up time was 75 months. The SNIL divided the SN-positive population into three groups with significantly different RFS, MSS, and nodal basin recurrence probabilities. The MSS of patients with SNIL 1 was virtually identical to that of SN-negative patients, whereas outgrowth of the metastasis from the parenchyma into the fibrous capsule or the medulla of the lymph node indicated a very poor prognosis. Thus, the SNIL may help to better assess the benefit-risk ratio of adjuvant therapies in patients with different SN metastasis patterns.


2021 ◽  
Vol 53 (5) ◽  
pp. 547-557
Author(s):  
Ya’nan Yang ◽  
Chenchen Wang ◽  
Congqi Dai ◽  
Xinyang Liu ◽  
Wenhua Li ◽  
...  

Abstract The prognostic significance of c-MET in gastric cancer (GC) remains uncertain. In the present study, we examined the amplification, expression, and the prognostic value of c-MET, human epidermal growth factor receptor 2 (HER2), and programmed cell death 1 ligand 1 (PDL1), together with the correlations among them in a large cohort of Chinese samples. A total of 444 patients were included. The immunohistochemistry (IHC) and the dual-color silver in situ hybridization (SISH) were performed to examine their expression and amplification. Univariate and multivariate analyses were performed by the Cox proportional hazard regression model, and survival curves were estimated by the Kaplan–Meier method. The positivity determined by IHC of c-MET was 24.8%, and the MET amplification rate was 2.3%. The positivity rates of HER2 and PDL1 were 8% and 34.7%, respectively. PDL1 expression had a significantly positive association with c-MET expression. c-MET positivity played a significant prognostic role in disease-free survival (DFS) (P = 0.032). Patients with mesenchymal-epithelial transition (MET) amplification had significantly poorer prognosis on both DFS and overall survival (OS). Subgroup analysis showed that in HER2-negative patients, but not in HER2-positive patients, MET-positive patients had significantly worse DFS (P = 0.000) and OS (P = 0.006). c-MET regulated the expression of PDL1 through an AKT-dependent pathway. c-MET inhibitor enhanced the T-cell killing ability and increased the efficacy of PD1 antibody. c-MET was found to be an independent prognostic factor for DFS of GC patients. A combination of c-MET inhibitors and PD1 antibodies could enhance the killing capacity of T cells, providing a preliminary basis for the clinical research on the same combination in GC treatment.


Cancers ◽  
2021 ◽  
Vol 13 (16) ◽  
pp. 3943
Author(s):  
Alba Gutiérrez-Seijo ◽  
Elena García-Martínez ◽  
Celia Barrio-Alonso ◽  
Miriam Pareja-Malagón ◽  
Alejandra Acosta-Ocampo ◽  
...  

TAMs constitute a large fraction of infiltrating immune cells in melanoma tissues, but their significance for clinical outcomes remains unclear. We explored diverse TAM parameters in clinically relevant primary cutaneous melanoma samples, including density, location, size, and polarization marker expression; in addition, because cytokine production is a hallmark of macrophages function, we measured CCL20, TNF, and VEGFA intracellular cytokines by single-cell multiparametric confocal microscopy. The Kaplan–Meier method was used to analyze correlation with melanoma-specific disease-free survival and overall survival. No significant correlations with clinical parameters were observed for TAM density, morphology, or location. Significantly, higher contents of the intracellular cytokines CCL20, TNF, and VEGFA were quantified in TAMs infiltrating metastasizing compared to non-metastasizing skin primary melanomas (p < 0.001). To mechanistically explore cytokine up-regulation, we performed in vitro studies with melanoma-conditioned macrophages, using RNA-seq to explore involved pathways and specific inhibitors. We show that p53 and NF-κB coregulate CCL20, TNF, and VEGFA in melanoma-conditioned macrophages. These results delineate a clinically relevant pro-oncogenic cytokine profile of TAMs with prognostic significance in primary melanomas and point to the combined therapeutic targeting of NF-kB/p53 pathways to control the deviation of TAMs in melanoma.


2011 ◽  
Vol 29 (6) ◽  
pp. 610-618 ◽  
Author(s):  
Bernhard Mlecnik ◽  
Marie Tosolini ◽  
Amos Kirilovsky ◽  
Anne Berger ◽  
Gabriela Bindea ◽  
...  

Purpose The prognosis of patients with colorectal cancer has sometimes proved uncertain; thus, the prognostic significance of immune criteria was compared with that of the tumor extension criteria using the American Joint Committee on Cancer/International Union Against Cancer–TNM (AJCC/UICC-TNM) staging system. Patients and Methods We studied the intratumoral immune infiltrates in the center of the tumor and in the invasive margin of 599 specimens of stage I to IV colorectal cancers from two independent cohorts. We analyzed these findings in relation to the degree of tumor extension and to the frequency of recurrence. Results Growth of the primary tumor and metastatic spread were associated with decreased intratumoral immune T-cell densities. Sixty percent of patients with high densities of CD8+ cytotoxic T-lymphocyte infiltrate presented with stage Tis/T1 tumor, whereas no patients with low densities presented with such early-stage tumor. In patients who did not relapse, the density of CD8 infiltrates was inversely correlated with T stage. In contrast, in patients whose tumor recurred, the number of CD8 cells was low regardless of the T stage of the tumor. Univariate analysis showed that the immune score was significantly associated with differences in disease-free, disease-specific, and overall survival (hazard ratio [HR], 0.64, 0.60, and 0.70, respectively; P < .005). Time-dependent receiver operating characteristic curve analysis illustrated the predictive accuracy of the immune parameters (c-index = 65.3%, time-dependent c-index [Cτ] = 66.5%). A final stepwise model for Cox multivariate analysis supports the advantage of the immune score (HR, 0.64; P < .001; Cτ = 67.9%) compared with histopathologic features in predicting recurrence as well as survival. Conclusion Assessment of CD8+ cytotoxic T lymphocytes in combined tumor regions provides an indicator of tumor recurrence beyond that predicted by AJCC/UICC-TNM staging.


2011 ◽  
Vol 29 (7) ◽  
pp. 832-838 ◽  
Author(s):  
John K. Chan ◽  
Alexander E. Sherman ◽  
Daniel S. Kapp ◽  
Ruxi Zhang ◽  
Kathryn E. Osann ◽  
...  

Purpose Despite a lack of evidence for survival benefit, the American College of Obstetrics and Gynecology has recommendations for referral to gynecologic oncologists for the treatment of endometrial cancer. Therefore, we propose to determine the influence of gynecologic oncologists on the treatment and survival of patients with endometrial cancer. Patients and Methods Data were obtained from Medicare and Surveillance, Epidemiology, and End Results (SEER) databases from 1988 to 2005. Kaplan-Meier and Cox proportional hazard methods were used for analyses. Results Of 18,338 women, 21.4% received care from gynecologic oncologists (group A) while 78.6% were treated by others (group B). Women in group A were older (age > 71 years: 49.6% v 44%; P < .001), had more lymph nodes (> 16) removed (22% v 17%; P < .001), presented with more advanced (stages III to IV) cancers (21.9% v 14.6%; P < .001), had higher-grade tumors (P < .001), and were more likely to receive chemotherapy for advanced disease (22.6% v 12.4%; P < .001). In those with stages II to IV disease, the 5-year disease-specific survival (DSS) of group A was 79% versus 73% in group B (P = .001). Moreover, in advanced-stage (III to IV) disease, group A had 5-year DSS of 72% versus 64% in group B (P < .001). However, no association with DSS was identified in stage I cancers. On multivariable analysis, younger age, early stage, lower grade, and treatment by gynecologic oncologists were independent prognostic factors for improved survival. Conclusion Patients with endometrial cancer treated by gynecologic oncologists were more likely to undergo staging surgery and receive adjuvant chemotherapy for advanced disease. Care provided by gynecologic oncologists improved the survival of those with high-risk cancers.


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