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《Clinical genitourinary cancer》2022,20(3):e217-e226
Background: Intraductal carcinoma and cribriform (IDC/C) tumor features are well-established prognosticators of biochemical recurrence (BCR), metastasis, and prostate cancer (PCa)-specific mortality. However, approximately 70% of PCa patients undergoing a radical prostatectomy are IDC/C negative, yet up-to 20% of these patients progress and experience BCR. Thus, tumor histopathologic characteristics such as IDC/C alone are limited in their ability to predict disease progression. Conversely, several nomograms such as Cancer of the Prostate Risk Assessment-Surgery (CAPRA-S) have been developed to aid in the prognostication of BCR, but not yet widely applied in clinical settings. Materials and methods: In this study, we assessed the combined prognostic utility of IDC/C, and CAPRA-S for BCR in 3 PCa patient cohorts. Results: CAPRA-S+IDC/C improved the predictive accuracy of BCR in all 3 cohorts (P < .001). Specifically, among IDC/C negative cases, CAPRA-S improved the prognostication of BCR in low-risk (Cohort 1; P < .001, Cohort 2; P < .001, Cohort 3; P = .003), intermediate (Cohort 1; P < .001, Cohort 2; P = .006, Cohort 3; P = .03) and high-risk (Cohort 1-3; P < .001) patients. Conversely, IDC/C improved the prognostication of BCR among CAPRA-S low-risk (Cohorts 1; P < .001 and Cohort 3; P = .003) patients. Conclusion: Our results suggest the investigation of histopathological IDC/C features in CAPRA-S low-risk patients and conversely, nomogram CAPRA-S among IDC/C negative patients improves the identification of patients likely to experience BCR, which would otherwise be missed through current assessment regimens. These patients can be offered more intensive monitoring and adjuvant therapies upfront to circumvent the development of recurrent cancer or overtreatment at the time of surgery. 相似文献
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《European journal of surgical oncology》2021,47(10):2483-2491
PurposeTo determine the impact of definitive presurgical diagnosis on surgical margins in breast-conserving surgery (BCS) for primary carcinomas; clinicopathological features were also analyzed.MethodsThis retrospective study included women who underwent BCS for primary carcinomas in 2016 and 2017. Definitive presurgical diagnosis was defined as having a presurgical core needle biopsy (CNB) and not being upstaged between biopsy and surgery. Biopsy data and imaging findings including breast density were retrieved. Inadequate surgical margins (IM) were defined per latest ASCO and ASTRO guidelines. Univariable and multivariable analyses were performed.Results360 women (median age, 66) met inclusion criteria with 1 having 2 cancers. 82.5% (298/361) were invasive cancers while 17.5% (63/361) were ductal carcinoma in situ (DCIS). Most biopsies were US-guided (284/346, 82.0%), followed by mammographic (60/346, 17.3%), and MRI-guided (2/346, 0.6%). US and mammographic CNB yielded median samples of 2 and 4, respectively, with a 14G needle. 15 patients (4.2%) lacked presurgical CNB. The IM rate was 30.0%. In multivariable analysis, large invasive cancers (>20 mm), dense breasts, and DCIS were associated with IM (p = 0.029, p = 0.010, and p = 0.013, respectively). Most importantly, lack of definitive presurgical diagnosis was a risk factor for IM (OR, 2.35; 95% CI: 1.23–4.51, p = 0.010). In contrast, neither patient age (<50) nor aggressive features (e.g., LVI) were associated with IM.ConclusionLack of a definitive presurgical diagnosis was associated with a two-fold increase of IM in BCS; other risk factors were dense breasts, large invasive cancers, and DCIS. 相似文献
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目的 研究乳腺浸润性微乳头状癌(invasive micropapillary carcinoma of the breast,IMPC)的临床病理特征以及生存预后分析。方法 选择2006年6月至2013年6月在本院收治的IMPC 29例,中位随访42个月,分析其临床病理特点、局部复发率、远处转移率及总生存率(overall survival,OS)等生存预后指标;与320例浸润性导管癌(invasive ductal carcinoma,IDC)病例进行对照,分析比较两组间的临床病理特点及生存预后指标。为进一步探讨IMPC病理类型对于生存预后的影响,将58例IDC与29例IMPC进行2∶1配对对照研究,分析比较两组间的生存预后指标。结果 29例IMPC中23例(79.3%)发生淋巴结转移,其中4枚及以上淋巴结转移的有15例(51.7%),18例(62.1%)伴有脉管侵犯。分子分型以Luminal B型为主(21例)。3年无局部复发生存率(local recurrence free survival,LRFS)、无转移生存率(metastasis free survival,MFS)、OS分别为:74%、86%、90%。Cox回归分析得出淋巴结转移个数是IMPC局部复发的影响因素(P=0.048)。与IDC组比较,IMPC组肿瘤体积大(3.70 cm vs.2.81 cm,P=0.007),淋巴结转移率高(79.3% vs.45.0%,P<0.001),淋巴结转移个数多(5.90 vs.2.16,P=0.003),淋巴结分级高分级比例较高(N2:24.1% vs.7.5%,N3:27.6% vs.6.9%,P<0.001),脉管侵犯率高(62.1% vs.20.0%,P<0.001),手术方式中标准根治术比例高(24.2% vs.3.1%,P<0.001),化疗方式中新辅助化疗比例高(31.0% vs.9.1%,P<0.001),其余方面差异无统计学意义。Log Rank检验生存分析得出IMPC组的LRFS显著低于IDC组(P=0.001),但两组间的MFS及OS差异无统计学意义(P=0.074及0.106)。将58例IDC与29例IMPC进行配对对照研究,Log Rank检验生存分析得出两组间的LFRS、MFS与OS差异均无统计学意义(P=0.586、0.965、0.920)。 结论 乳腺IMPC是一类预后较差的特殊类型乳腺癌,其较高的淋巴脉管侵犯性而非这一病理类型,与肿瘤的生存预后相关。 相似文献
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Caroline Steglich Ramos Andréia Souza Gonçalves Larissa Cardoso Marinho Melissa Ameloti Gomes Avelino Vera Aparecida Saddi Aryanne Cristina Lopes Renata Toscano Simões Isabela Jubé Wastowski 《Human immunology》2014
The human leukocyte antigen G (HLA-G) is a non-classical HLA class I molecule predominantly expressed in trophoblastic placental cells to protect the fetus during pregnancy. However, evidence has shown that this molecule may be implicated in the immune escape mechanism of tumor cells. Thus, the aim of this study was to evaluate the frequency of 14-bp insertion/deletion HLA-G polymorphism, as well as the expression of this molecule in patients with invasive breast ductal carcinoma (IDC). A significant association between the expression of HLA-G and the presence of metastasis in lymph nodes (p = 0.01) was observed and the expression of HLA-G was significantly higher in patients with shorter survival time (p = 0.03). The analysis suggests that the polymorphism observed in patients with IDC may be inducing a higher expression of the HLA-G molecule, which may possibly contribute to shorter survival time and a worse clinical prognosis for such patients. 相似文献
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T84-intestinal epithelial exosomes bear MHC class II/peptide complexes potentiating antigen presentation by dendritic cells 总被引:2,自引:0,他引:2
Mallegol J Van Niel G Lebreton C Lepelletier Y Candalh C Dugave C Heath JK Raposo G Cerf-Bensussan N Heyman M 《Gastroenterology》2007,132(5):1866-1876
BACKGROUND & AIMS: Intestinal epithelial cells release antigen-presenting vesicles (exosomes) bearing major histocompatibility complex class II/peptide complexes stimulating specific immune responses in vivo. To characterize further the role of human epithelial exosomes in antigen presentation, their capacity to load antigenic peptides, bind immune target cells, and induce T-cell activation was analyzed in vitro. METHODS: The capacity of exosomes derived from the HLA-DR4-expressing, intestinal epithelial cell line T84 to load the HLA-DR4-specific peptide (3)H-HSA 64-76 and to activate a HLA-DR4-restricted T-cell hybridoma was tested in the presence or absence of human monocyte-derived dendritic cells (DCs). Interaction of fluorescein isothiocyanate-labeled exosomes with T cells and DCs was analyzed by flow cytometry and confocal microscopy. RESULTS: T84-derived exosomes, enriched in CD9, CD81, CD82, and A33 antigen, were capable of binding specifically human serum albumin (HSA) 64-76 peptide on HLA-DR4 molecules and of interacting preferentially with DCs. HSA-loaded exosomes were unable to activate the T-cell hybridoma directly but induced a productive T-cell activation through DCs. When HSA peptide was bound to exosomal HLA-DR4 molecules instead of in a soluble form, the threshold of peptide presentation by DCs was markedly decreased (x10(-3)). CONCLUSIONS: Exosomes released by intestinal epithelial cells bear exogenous peptides complexed to major histocompatibility complex class II molecules and interact preferentially with DCs, strongly potentiating peptide presentation to T cells. Epithelial exosomes constitute a powerful link between luminal antigens and local immune cells by mediating the transfer of tiny amounts of luminal antigenic information and facilitating immune surveillance at mucosal surfaces. 相似文献
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对42例扩张型心肌病患者左室容积指数(LVVI)、室壁厚度(LVWT)及左室重量指数(LVMI)与其诊所左室肥厚(LVH)常用五项心电图(ECG)标准间的关系进行研究。简单相关分析表明,多数ECG标准与LWI、LVWT、LVMI呈轻、中度相关;多元逐步回归分析显示:LVVI、LVMI主要与Romhit—Estes记分(RE记分)、Sokolow和Lyon指数(SL指数)有关,LVWT主要与SL指数有关。 相似文献