Abstract:
BACKGROUND:Immune cells (lymphocytes and macrophages) provide the microenvironment for immune surveillance of metastatic prostate cancer (PCa) cells in pelvic lymph nodes. We have hypothesized that degeneration and/or apoptosis of metastatic PCa cells in pelvic lymph nodes can distinguish between aggressive and non-aggressive metastatic disease in patients. Our objective was to define the relationship between metastatic cell lysis and the presence of immune cells. MATERIALS AND METHODS:We studied archival primary PCa (n=38) and cancer-positive regional pelvic nodes (n=32) from the same patients undergoing radical retropubic prostatectomy at the Minneapolis Veterans Affairs Medical Center. RESULTS:Using morphological and immunohistochemical features of immune and metastatic cancer cells, we have identified progression of metastasis in the nodal compartments. Nodal parenchyma contained small, intermediate and large metastatic nodules/tumors. Immune surveillance occurred primarily in small tumors and surveillance was either absent or greatly reduced in intermediate and large tumors in nodes. Metastatic nodules/cells were lysed or became apoptotic when under immune-surveillance, as indicated by pyknotic nuclei and cytoplasm, the latter still had remnants of prostate specific antigen (PSA) staining. Metastatic cells without surveillance did not exhibit morphological features of cell degeneration (lysis) or apoptosis. Metastatic cells under immune-surveillance had an inverse relationship with those without immune-surveillance. This relationship differed from node to node and patient to patient. CONCLUSION:We have shown that at least two populations of metastatic cells were present in the nodes; the first group of cells was under immune surveillance, as indicated by limited to wide-spread cell lysis/apoptosis, and the second group did not exhibit morphological evidence of cell lysis indicating emergence of surveillance-unresponsive (resistant) metastatic cells. These criteria can be used to distinguish metastatic cancer that is expected to be responsive to immunotherapy from that which would show little or no benefit from such treatment. Enhancement of immune surveillance and other treatments can be used to treat surveillance-unresponsive (resistant) disease to improve survival of patients.
journal_name
Anticancer Resjournal_title
Anticancer researchauthors
Sinha AA,Fernandes ET,Ewing SL,Wilson MJsubject
Has Abstractpub_date
2013-09-01 00:00:00pages
3635-43issue
9eissn
0250-7005issn
1791-7530pii
33/9/3635journal_volume
33pub_type
杂志文章abstract::Polymerase chain reaction and single strand conformation polymorphism (PCR-SSCP) analysis of the p53 tumor suppressor gene (from exon 2 to 9) was performed on samples from 47 adult patients with primary myelodysplastic syndrome (MDS). Point mutation was found in 5 (11%) patients: exon 7 in 3, exon 4 in 1 and intron 5 ...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1998-09-01 00:00:00
abstract::Our previous work showed that low-power wide-band millimeter waves (MMW) inhibit the growth of the MCF-7 human breast carcinoma cell line, also causing a marked reduction of the density of microvilli at the apical membrane of the MCF-7 cells, as revealed by scanning electron microscopy. The aim of the present work was...
journal_title:Anticancer research
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doi:
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2011-10-01 00:00:00
abstract::In node-negative breast cancer, 70% of patients are cured by surgery alone and thus should be spared the necessity of systemic adjuvant treatment. Histomorphological and tumor biological prognostic factors may be employed to assess the patient's risk profile with regard to disease recurrence and death. To evaluate the...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1998-05-01 00:00:00
abstract:BACKGROUND:Chemotherapy is considered to have a marginal impact on survival. The purpose of this study was to evaluate the rate of long-term survival in patients treated with chemotherapy for advanced non-small cell lung cancer (NSCLC). PATIENTS AND METHODS:The case records of 109 patients with NSCLC treated with chem...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2007-11-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
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journal_title:Anticancer research
pub_type: 杂志文章
doi:10.21873/anticanres.12369
更新日期:2018-03-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章,评审
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更新日期:2018-06-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2011-03-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2004-11-01 00:00:00
abstract:BACKGROUND:The prognostic significance of mutant p53 protein, p-glycoprotein (P-gp) and glutathione S-transferase-pi (GST-pi) in patients with unresectable non-small cell lung cancer (NSCLC) has not been established. MATERIALS AND METHODS:We performed immunohistochemical staining of p53, P-gp and GST-pi using transbro...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2003-05-01 00:00:00
abstract:BACKGROUND:Previously we demonstrated that injection of Interleukin-alpha (IL-1) stimulated B16 melanoma tumour growth in vivo, associated with increased intercellular adhesion molecule-1 (ICAM-1) expression on the tumour cells (Photodermatol Photoimmunol Photomed 1994; 10: 74-79, ). METHODS:In the present study, we e...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1996-01-01 00:00:00
abstract::Tumor cell invasion was studied using the 9-day chick embryo skin (CES). The invasion process was broken down into 4 sequential events: adhesion, penetration, proliferation and colonization. Tumor cells used in this study included cells from various human and canine solid tumors, tumor cell lines from human and animal...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1989-01-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:10.21873/anticanres.12608
更新日期:2018-06-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2002-07-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1989-03-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2011-06-01 00:00:00
abstract:AIM:Metastasis of unknown primary (MUP) is commonly treated with radiation therapy (RT) to the entire mucosal surfaces and bilateral neck nodes (LN). We report outcomes of oropharynx-targeted RT, retropharyngeal nodes (RPN) and bilateral LN in this context. PATIENTS AND METHODS:Single-Institution retrospective study o...
journal_title:Anticancer research
pub_type: 临床试验,杂志文章
doi:
更新日期:2014-01-01 00:00:00
abstract::Methodological aspects of testing chemosensitivity by the 6-day subrenal capsule (SRC) assay in immunocompetent mice were investigated. Human tumor xenografts, serially transplanted in athymic nude mice, were used as source of material. All drugs were given by the intravenous route. Administration of the drugs on days...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1985-07-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2004-05-01 00:00:00
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journal_title:Anticancer research
pub_type: 临床试验,杂志文章
doi:
更新日期:2014-06-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2003-09-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2012-05-01 00:00:00
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journal_title:Anticancer research
pub_type: 临床试验,杂志文章
doi:
更新日期:2002-11-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2003-01-01 00:00:00
abstract:BACKGROUND/AIM:In breast cancer (BC) care, radiation therapy (RT) is an efficient treatment to control localized tumor. Radiobiological research is needed to understand molecular differences that affect radiosensitivity of different tumor subtypes and the response variability. The aim of this study was to analyze gene ...
journal_title:Anticancer research
pub_type: 杂志文章
doi:10.21873/anticanres.12512
更新日期:2018-05-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1994-05-01 00:00:00
abstract:BACKGROUND:The standard treatment of epithelial ovarian cancer is tumor debulking by surgery, followed by six cycles of chemotherapy consisting of cisplatinum and paclitaxel. However, this therapy protocol is not satisfactory, since about 50% of the treated patients eventually experience recurrence within a few years o...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2007-03-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章,评审
doi:
更新日期:2014-09-01 00:00:00