IL-13 regulates cancer invasion and metastasis through IL-13Rα2 via ERK/AP-1 pathway in mouse model of human ovarian cancer.

IL-13 regulates cancer invasion and metastasis through IL-13Rα2 via ERK/AP-1 pathway in mouse model of human ovarian cancer

"Taken together, IL-13Rα2 is involved in cancer metastasis through activation of ERK/AP-1 and that targeting IL-13Rα2 might not only directly kill primary tumors but also prevent cancer metastasis."

paywalled: Physical Activity, Biomarkers, and Disease Outcomes in Cancer Survivors: A Systematic Review

Physical Activity, Biomarkers, and Disease Outcomes in Cancer Survivors: A Systematic Review:

Background
Cancer survivors often seek information about how lifestyle factors, such as physical activity, may influence their prognosis. We systematically reviewed studies that examined relationships between physical activity and mortality (cancer-specific and all-cause) and/or cancer biomarkers.

Methods
We identified 45 articles published from January 1950 to August 2011 through MEDLINE database searches that were related to physical activity, cancer survival, and biomarkers potentially relevant to cancer survival. We used the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Statement to guide this review. Study characteristics, mortality outcomes, and biomarker-relevant and subgroup results were abstracted for each article that met the inclusion criteria (ie, research articles that included participants with a cancer diagnosis, mortality outcomes, and an assessment of physical activity).

Results
There was consistent evidence from 27 observational studies that physical activity is associated with reduced all-cause, breast cancer–specific, and colon cancer–specific mortality. There is currently insufficient evidence regarding the association between physical activity and mortality for survivors of other cancers. Randomized controlled trials of exercise that included biomarker endpoints suggest that exercise may result in beneficial changes in the circulating level of insulin, insulin-related pathways, inflammation, and, possibly, immunity; however, the evidence is still preliminary.

Conclusions
Future research directions identified include the need for more observational studies on additional types of cancer with larger sample sizes; the need to examine whether the association between physical activity and mortality varies by tumor, clinical, or risk factor characteristics; and the need for research on the biological mechanisms involved in the association between physical activity and survival after a cancer diagnosis. Future randomized controlled trials of exercise with biomarker and cancer-specific disease endpoints, such as recurrence, new primary cancers, and cancer-specific mortality in cancer survivors, are warranted.

open access: Cell–cell and cell–matrix dynamics in intraperitoneal cancer metastasis (ovarian/GI tract cancers)

Cell–cell and cell–matrix dynamics in intraperitonealcancer metastasis

 Abstract/pdf full text:

IntroductionIntraperitoneal dissemination is the primary metastatic route
of ovarian cancers. It is also a common progression for
gastrointestinal malignancies including colorectal, gastric,
and pancreatic cancers.....
                              ~~~~~~~~~~~~~~~~~

The peritoneal metastatic route of cancer dissemination
is shared by cancers of the ovary and gastrointestinal
tract. Once initiated, peritoneal metastasis typically proceeds
rapidly in a feed-forward manner. Several factors
contribute to this efficient progression. In peritoneal metastasis,
cancer cells exfoliate into the peritoneal fluid and
spread locally, transported by peritoneal fluid. Inflammatory
cytokines released by tumor and immune cells compromise
the protective, anti-adhesive mesothelial cell layer that lines
the peritoneal cavity, exposing the underlying extracellular
matrix to which cancer cells readily attach. The peritoneum
is further rendered receptive to metastatic implantation and
growth by myofibroblastic cell behaviors also stimulated by
inflammatory cytokines. Individual cancer cells suspended
in peritoneal fluid can aggregate to form multicellular spheroids.

abstract: Role of Fluorine 18 Fluorodeoxyglucose Positron Emission Tomography–Computed Tomography in Focal and Generalized Infectious and Inflammatory Disorders

Role of Fluorine 18 Fluorodeoxyglucose Positron Emission Tomography–Computed Tomography in Focal and Generalized Infectious and Inflammatory Disorders

Abstract

"Several advances in imaging have become part of the work-up for localization, diagnosis, and management of infectious diseases and inflammatory disorders. Utility of multiple imaging modalities is a time-consuming step, and significant numbers of patients remain undiagnosed despite utilization of series of tests. Inflammatory cells have avidity for fluorine 18–labeled fluorodeoxyglucose (¹⁸F-FDG), and thus positron emission tomographic–computed tomographic (PET-CT) hybrid imaging provides anatomical and metabolic information that can be used to define the extent of infectious and inflammatory diseases and assess response to treatment. PET-CT provides a “one-stop test” in which use of hybrid imaging provides anatomical and metabolic information. The extent of disease is defined quickly, and response to treatment can be assessed. This modality also helps define the metastatic and/or septic foci where there is lack of localizing symptoms. More recently, there is increasing awareness among clinicians regarding the ability of PET-CT to help in diagnosing, characterizing, and assessing inflammatory disorders. This article reviews the usefulness of this imaging modality."

abstract: Inflammatory Pseudotumor: The Great Mimicker

Abstract:

OBJECTIVE. The purpose of this review is to describe the pathophysiologic findings, differential diagnosis, imaging features, and management of inflammatory pseudotumor in various locations throughout the body.

CONCLUSION. Inflammatory pseudotumor is a rare benign process mimicking malignant processes and has been found in almost every organ system. Radiologists should be familiar with this entity as a diagnostic consideration to avoid unnecessary surgery.

open access -Jan 2012 Advances in the Treatment of Ovarian Cancer — A Potential Role of Anti-inflammatory Phytochemicals - Discovery Medicine

 Sections:

Epithelial Ovarian Cancer Pathology and Inflammation Associated Molecular Targets

Is There a Role for Non-steroidal Anti-inflammatory Drugs (NSAIDS) in EOC Prevention?

Anti-inflammatory Phytochemicals

In conclusion, results from many published studies described above indicate a definitive involvement of inflammation pathway in the progression and treatment of ovarian cancer. Some anti-inflammatory phytochemicals exhibit the activities to intervene the dysregulated inflammation pathway, and may play a beneficial role in the treatment of advanced EOC. However, there are many questions remain to be answered. Further research in this area is urgently needed.  

Researchers Find Ovarian Cancer Risk Related To Inherited Inflammation Genes - newswise

"... The authors noted that in 2011 there were an estimated 225,500 new cases of ovarian cancer worldwide. Although some women are at greatly elevated risks of ovarian cancer due to inherited mutations in the BRCA1 and BRCA2 genes (and Lynch Syndrome amongst other rarer syndomes), these are rare in the population and account for perhaps 10 percent of cases. However, a substantial portion of genetic influence on ovarian cancer risk has been “unexplained” and some of that may be due to common genetic variants. Sellers points out that “the Il1A variant that was most strongly protective is carried by 30 percent of women in the study, so the impact at the population level is not trivial.”




Blogger's Note: interleukins and therefore the interest in interleukin research noting the variables within (eg. IL2;IL3..) as an example:

(2009) Interleukin 2-mediated conversion of ovarian cancer-associated CD4+ regulatory T cells into proinflammatory interleukin 17-producing helper T cells.

abstract: Ovarian Cancer Risk Associated with Inherited Inflammation-Related Variants

Abstract

The importance of inflammation pathways to the development of many human cancers prompted us to examine the associations between single-nucleotide polymorphisms (SNPs) in inflammation-related genes and risk of ovarian cancer.
In a multi-site case-control study, we genotyped SNPs in a large panel of inflammatory genes in 930 epithelial ovarian cancer cases and 1,037 controls using a custom array and analyzed by logistic regression. SNPs with p<0.10 were evaluated among 3,143 cases and 2,102 controls from the Follow-up of Ovarian Cancer Genetic Association and Interaction Studies (FOCI) collaboration.
Combined analysis revealed association with SNPs rs17561 and rs4848300 in the interleukin gene IL1A which varied by histologic subtype (heterogeneity p=0.03). For example, IL1A rs17561, which correlates with numerous inflammatory phenotypes, was associated with decreased risk of clear cell, mucinous, and endometrioid subtype, but not with the most common serous subtype. Genotype at rs1864414 in the arachidonate 5-lipoxygenase ALOX5 was also associated with decreased risk.
Thus, inherited variation in IL1A and ALOX5 appears to affect ovarian cancer risk which, for IL1A, is limited to rarer subtypes. Given the importance of inflammation in tumorigenesis and growing evidence of subtype-specific features in ovarian cancer, functional investigations will be important to help clarify the importance of inherited variation related to inflammation in ovarian carcinogenesis.

Missing link: inflammation and ovarian cancer : The Lancet Oncology (commentary) - note photo in article

Note: view excellent photo (in blue/not teal) at the end of the article

Linus Pauling Institute at Oregon State University (research institute vitamins/micronutriends/phytochemicals)

Researchers at the Linus Pauling Institute investigate the role that vitamins and essential minerals (micronutrients) and chemicals from plants (phytochemicals) play in human aging, immune function, and chronic diseases, especially heart disease, cancer, and neurodegenerative diseases. A major emphasis is to understand the role of oxidative stress and inflammation in disease etiology, and the preventive effects of dietary constituents with antioxidant or anti-inflammatory properties.

The goal of these studies is to understand the mechanisms by which diet, micronutrients, and dietary supplements affect disease initiation and progression and can be used in the prevention or treatment of human diseases, thereby enhancing lifespan and healthspan......cont'd

NIH/NCCAM
Center of Excellence

The Linus Pauling Institute is one of the nation's first two Centers of Excellence for Research on Complementary and Alternative Medicine designated by the National Center for Complementary and Alternative Medicine (NCCAM) of the National Institutes of Health (NIH).

abstract: Changes in pre-diagnostic serum C-reactive protein concentrations and ovarian cancer risk: a longitudinal study

Define: C-reactive protein (CRP) is a protein found in the blood, the levels of which rise in response to inflammation (an acute-phase protein). ...
en.wikipedia.org/wiki/C-reactive_protein
Abstract

BACKGROUND: Evidence suggests that inflammation may be associated with increased risk of ovarian cancer but there is paucity of studies investigating this association, especially using over-time changes in inflammatory biomarkers.

MATERIALS AND METHODS: We conducted a prospective population-based case-control study nested within the Finnish Maternity Cohort (FMC). Within the FMC, 170 women with ovarian cancer who had donated serum samples to the cohort twice, ≥1 year apart, before cancer diagnoses were identified. One control per case was matched for age, parity and sampling date.

RESULTS: Comparing the highest with lowest tertiles, the odds ratio (OR) of ovarian cancer using the first set of serum samples (mean lag time to cancer diagnosis 9.0 years) was 1.62 [95% confidence interval (CI) 0.93-2.83]. However, analysis conducted using the second set of serum samples donated closer to cancer diagnosis (mean lag time 6.4 years) revealed a significantly increased risk of ovarian cancer comparing extreme tertiles of C-reactive protein (CRP) concentrations; OR 1.96 (95% CI 1.11-3.4). Over time, increases in individuals' CRP concentrations were also associated with increased risk; OR 1.90 (95% CI 1.12-3.23).

CONCLUSION: The results suggest that inflammation may precede ovarian cancer since increasing CRP concentrations, both across tertiles and longitudinally at the individual level, were associated with increased risk.

High cumulative incidence of cancer in patients with cardio-renal-anaemia syndrome (chronic kidney disease)

Aims
The combination of chronic kidney disease (CKD), chronic heart failure (HF), and anaemia, the so-called cardio-renal-anaemia syndrome (CRA) is associated with dysregulation of erythropoietin levels and inflammation. Both have been associated with the development of cancer. This study aimed to determine the cumulative incidence of cancer in patients with CRA, as compared with anaemic CKD and control patients.

Inherited Determinants of Ovarian Cancer Survival

"Conclusion: An extensive multiple-pathway assessment found evidence that inherited differences may play a role in outcome of ovarian cancer patients, particularly in genes within the angiogenesis and inflammation pathways. Our work supports efforts to target such mediators for therapeutic gain."