scholarly journals Senescent Remodeling of the Innate and Adaptive Immune System in the Elderly Men with Prostate Cancer

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Gianluigi Taverna ◽  
Mauro Seveso ◽  
Guido Giusti ◽  
Rodolfo Hurle ◽  
Pierpaolo Graziotti ◽  
...  

Despite years of intensive investigation that has been made in understanding prostate cancer, it remains a major cause of death in men worldwide. Prostate cancer emerges from multiple alterations that induce changes in expression patterns of genes and proteins that function in networks controlling critical cellular events. Based on the exponential aging of the population and the increasing life expectancy in industrialized Western countries, prostate cancer in the elderly men is becoming a disease of increasing significance. Aging is a progressive degenerative process strictly integrated with inflammation. Several theories have been proposed that attempt to define the role of chronic inflammation in aging including redox stress, mitochondrial damage, immunosenescence, and epigenetic modifications. Here, we review the innate and adaptive immune systems and their senescent remodeling in elderly men with prostate cancer.

2013 ◽  
Author(s):  
Monique H.M Melis ◽  
Johan van Burgsteden ◽  
Hester J.T. van Zeeburg ◽  
John Zevenhoven ◽  
Ji-Ying Song ◽  
...  

2013 ◽  
Vol 3 (3) ◽  
pp. 205 ◽  
Author(s):  
Sandeep Mistry ◽  
Wesley Mayer ◽  
Rose Khavari ◽  
Gustavo Ayala ◽  
Brian Miles

Introduction: Prostate cancer is the most common nonskin malignancyaffecting men and is the second leading cause of cancerrelateddeath in North America. The incidence of prostate cancerincreases dramatically with age. However, many healthauthorities advocate the cessation of routine prostate cancer testingin men older than 75 because of the belief that most patientswill have a clinically insignificant cancer and will not benefit fromtherapy. The true prevalence of clinically significant prostate cancerin elderly men is not known.Methods: We analyzed 1446 needle biopsies of the prostate inmen aged 75 or older. All pathological reviews were conductedby the pathology department at the Methodist Hospital in Houston,Tex. Data were collected from pathology reports, hospital andclinic databases, and medical records when available. Dataobtained included age at biopsy, serum prostate-specific antigen(PSA) levels, number of positive core biopsies and Gleasongrade. Statistical analysis was performed using Stata. Clinicallysignificant cancer was defined by the pathological presence ofGleason grade 6 adenocarcinoma in more than 1 biopsy coreor the presence of any Gleason 4 or 5 component in the biopsy.Results: The median age of the patients included in the studywas 78.8 and 95% of the patients were between the ages of 75and 85. The mean serum PSA level for patients biopsied was10.4 μg/L. Of all biopsies reviewed, 53% were positive for prostatecancer and 78% of these would be defined as clinically significantcancer. Regression analysis revealed age to be a significant(p < 0.05) factor for increased Gleason grade in positive biopsies.Logistic regression revealed age as a significant factor (p <0.05) for clinically significant prostate cancer even when controllingfor PSA. A serum PSA threshold value of 6.5 μg/L would havemissed 38% of significant cancers and a threshold of 4.0 μg/Lwould have missed 8% of significant cancers.Conclusion: Our findings suggest that the prevalence of clinicallysignificant prostate cancer in the elderly population may be higherthan previously thought. As the population continues to livelonger and healthier lives, it will become more common to confrontprostate cancer morbidity in the eldery population. Usinghigher serum PSA thresholds to eliminate unnecessary biopsies inolder men does not appear to help identify patients at greaterrisk of having clinically significant prostate cancer. Patients withprostate cancer having aggressive clinical features may benefitfrom treatment of their prostate cancer well into their eighth andninth decades of life. Testing and diagnostic recommendationsshould reflect the potential benefit of identifying patients withaggressive prostate cancer even after age 75.Introduction : Le cancer de la prostate est le type de cancer noncutané le plus fréquent chez les hommes et la seconde causede décès lié au cancer en importance en Amérique du Nord.L’incidence du cancer de la prostate augmente grandement avecl’âge. Néanmoins, de nombreuses autorités en matière de santéavancent l’idée de mettre fin au dépistage systématique du cancerde la prostate chez les hommes de plus de 75 ans en raisonde la croyance selon laquelle la plupart des patients présenterontun cancer non significatif sur le plan clinique et ne bénéficierontpas d’un traitement. La véritable prévalence des cas decancer de la prostate cliniquement significatif chez les hommesâgés n’est pas établie.Méthodes : Nous avons analysé 1446 échantillons de biopsie àl’aiguille prélevés au niveau de la prostate chez des patients de75 ans ou plus. Toutes les analyses de pathologie ont été effectuéespar le service de pathologie du Methodist Hospital deHouston, au Texas. Les données ont été tirées des rapports depathologie, des bases de données des hôpitaux et des cliniques,et des dossiers médicaux lorsque possible. Les données obtenuesincluaient l’âge au moment de la biopsie, les valeurs d’antigèneprostatique spécifique (APS), le nombre de microbiopsies positiveset le score de Gleason. Les analyses statistiques ont été effectuéesà l’aide du système Stata. Le cancer cliniquement significatifest défini comme la présence d’un adénocarcinome avec un scorede Gleason de 6 dans plus d’une zone de biopsie ou un scorede Gleason de 4 ou 5 dans toute partie de l’échantillon.Résultats : L’âge moyen des patients inclus était de 78,8 ans et95 % des patients avaient entre 75 et 85 ans. La valeur moyennede l’APS chez les patients ayant subi une biopsie était de 10,4 μg/L.De tous les échantillons examinés, 53 % confirmaient la présenced’un cancer de la prostate, et le cancer était défini comme étantcliniquement significatif dans 78 % de ces cas. Une analyse derégression a révélé que l’âge était un facteur significatif (p <0,05) lié à un score de Gleason plus élevé dans les biopsies positives.Une analyse de régression logistique a révélé que l’âge étaitaussi un facteur significatif (p < 0,05) lié à un cancer de la prostatecliniquement significatif même en tenant compte du taux d’APS.Une valeur seuil d’APS de 6,5 μg/L serait passée à côté de 38 %des cas de cancer significatif, alors qu’une valeur seuil d’APSde 4,0 μg/L serait passée à côté de 8 % des cancers significatifs.Conclusion : Nos observations portent à croire que la prévalencedu cancer de la prostate significatif sur le plan clinique chezles patients âgés pourrait être plus élevée qu’on le croit. Avecl’augmentation de l’espérance de vie, l’incidence de la morbiditéliée au cancer de la prostate augmentera. Le recours àdes valeurs seuils d’APS plus élevées pour éliminer les cas debiopsies non nécessaires chez les hommes âgés ne semble pasaider à cerner les patients présentant un risque plus élevé de cancerde la prostate cliniquement significatif. Les patients atteintsde cancer de la prostate cliniquement agressif peuvent bénéficierd’un traitement contre le cancer même lorsqu’ils dépassentlargement les 80 ou les 90 ans. Les recommandations concernantle dépistage et le diagnostic devraient refléter les avantages potentielsliés au dépistage d’un cancer de la prostate agressif, mêmeaprès 75 ans.


2021 ◽  
Vol 12 ◽  
Author(s):  
Alecia M. Blaszczak ◽  
Anahita Jalilvand ◽  
Willa A. Hsueh

The role of adipose tissue (AT) inflammation in obesity and its multiple related-complications is a rapidly expanding area of scientific interest. Within the last 30 years, the role of the adipocyte as an endocrine and immunologic cell has been progressively established. Like the macrophage, the adipocyte is capable of linking the innate and adaptive immune system through the secretion of adipokines and cytokines; exosome release of lipids, hormones, and microRNAs; and contact interaction with other immune cells. Key innate immune cells in AT include adipocytes, macrophages, neutrophils, and innate lymphoid cells type 2 (ILC2s). The role of the innate immune system in promoting adipose tissue inflammation in obesity will be highlighted in this review. T cells and B cells also play important roles in contributing to AT inflammation and are discussed in this series in the chapter on adaptive immunity.


2020 ◽  
Vol 21 (9) ◽  
pp. 3348
Author(s):  
Dorota Formanowicz ◽  
Agnieszka Rybarczyk ◽  
Marcin Radom ◽  
Piotr Formanowicz

Recent studies have shown that the innate and adaptive immune system, together with low-grade inflammation, may play an important role in essential hypertension. In this work, to verify the importance of selected factors for the development of essential hypertension, we created a Petri net-based model and analyzed it. The analysis was based mainly on t-invariants, knockouts of selected fragments of the net and its simulations. The blockade of the renin-angiotensin (RAA) system revealed that the most significant effect on the emergence of essential hypertension has RAA activation. This blockade affects: (1) the formation of angiotensin II, (2) inflammatory process (by influencing C-reactive protein (CRP)), (3) the initiation of blood coagulation, (4) bradykinin generation via the kallikrein-kinin system, (5) activation of lymphocytes in hypertension, (6) the participation of TNF alpha in the activation of the acute phase response, and (7) activation of NADPH oxidase—a key enzyme of oxidative stress. On the other hand, we found that the blockade of the activation of the RAA system may not eliminate hypertension that can occur due to disturbances associated with the osmotically independent binding of Na in the interstitium. Moreover, we revealed that inflammation alone is not enough to trigger primary hypertension, but it can coexist with it. We believe that our research may contribute to a better understanding of the pathology of hypertension. It can help identify potential subprocesses, which blocking will allow better control of essential hypertension.


2019 ◽  
Vol 11 ◽  
pp. 251584141986812
Author(s):  
Tanima Bose

Pemphigoid disease is classified according to the phenotypical location of the disease and the presence of different types of antibodies. The ocular distribution of pemphigoid mainly occurs in patients with bullous pemphigoid and mucous membrane pemphigoid. Several immune cells, including the cells of the innate immune system (neutrophils and γδ T cells) and the adaptive immune system (T and B cells), are involved in pemphigoid disease. The treatment of pemphigoid is still wide-ranging, and the most utilized treatment is the use of immunosuppressants and corticosteroids. In this scenario, it is absolutely important to screen the immune cells that are involved in this group of diseases and to determine if a targeted treatment approach is plausible. In conclusion, this review will identify some newer treatment possibilities for the whole spectrum of pemphigoid diseases.


2010 ◽  
Vol 10 (2) ◽  
pp. 203-207 ◽  
Author(s):  
David G Harrison ◽  
Antony Vinh ◽  
Heinrich Lob ◽  
Meena S Madhur

2017 ◽  
Vol 2017 ◽  
pp. 1-6 ◽  
Author(s):  
Chang Xia ◽  
Xiaoquan Rao ◽  
Jixin Zhong

Although a critical role of adaptive immune system has been confirmed in driving local and systemic inflammation in type 2 diabetes and promoting insulin resistance, the underlying mechanism is not completely understood. Inflammatory regulation has been focused on innate immunity especially macrophage for a long time, while increasing evidence suggests T cells are crucial for the development of metabolic inflammation and insulin resistance since 2009. There was growing evidence supporting the critical implication of T cells in the pathogenesis of type 2 diabetes. We will discuss the available effect of T cells subsets in adaptive immune system associated with the procession of T2DM, which may unveil several potential strategies that could provide successful therapies in the future.


2012 ◽  
Vol 22 (3) ◽  
pp. 412-421 ◽  
Author(s):  
Jan Bauer ◽  
Annamaria Vezzani ◽  
Christian G. Bien

2013 ◽  
Vol 35 ◽  
pp. 711-720 ◽  
Author(s):  
Gianluigi Taverna ◽  
Guido Giusti ◽  
Mauro Seveso ◽  
Rodolfo Hurle ◽  
Piergiuseppe Colombo ◽  
...  

Despite years of intensive investigation that has been made in understanding prostate cancer, it remains one of the major men’s health issues and the leading cause of death worldwide. It is now ascertained that prostate cancer emerges from multiple spontaneous and/or inherited alterations that induce changes in expression patterns of genes and proteins that function in complex networks controlling critical cellular events. It is now accepted that several innate and adaptive immune cells, including T- and B-lymphocytes, macrophages, natural killer cells, dendritic cells, neutrophils, eosinophils, and mast cells (MCs), infiltrate the prostate cancer. All of these cells are irregularly scattered within the tumor and loaded with an assorted array of cytokines, chemokines, and inflammatory and cytotoxic mediators. This complex framework reflects the diversity in tumor biology and tumor-host interactions. MCs are well-established effector cells in Immunoglobulin-E (Ig-E) associated immune responses and potent effector cells of the innate immune system; however, their clinical significance in prostate cancer is still debated. Here, these controversies are summarized, focusing on the implications of these findings in understanding the roles of MCs in primary prostate cancer.


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