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Prostate immunotherapy

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https://www.readbyqxmd.com/read/28440434/preclinical-studies-for-the-combination-of-paclitaxel-and-curcumin-in-cancer-therapy-review
#1
Yumeng Wei, Xinlin Pu, Ling Zhao
Cancer is one of the most common causes of death and remains the first in China and the second in the US. The common treatments for cancer include surgery, radiation, chemotherapy, targeted therapy and immunotherapy, while chemotherapy remains one of the most important treatments. However, the efficacy of chemotherapy is limited due to drug induced-toxicities and resistance, particularly multiple drug resistance (MDR). Therefore, discovery and development of novel therapeutic drugs and/or combination therapy are urgently needed to reduce toxicity and improve efficacy...
April 20, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28434181/management-options-for-biochemically-recurrent-prostate-cancer
#2
REVIEW
Farhad Fakhrejahani, Ravi A Madan, William L Dahut
Prostate cancer is the most common solid tumor malignancy in men worldwide. Treatment with surgery and radiation can be curative in organ-confined disease. Unfortunately, about one third of men develop biochemically recurrent disease based only on rising prostate-specific antigen (PSA) in the absence of visible disease on conventional imaging. For these patients with biochemical recurrent prostate cancer, there is no uniform guideline for subsequent management. Based on available data, it seems prudent that biochemical recurrent prostate cancer should initially be evaluated for salvage radiation or prostatectomy, with curative intent...
May 2017: Current Treatment Options in Oncology
https://www.readbyqxmd.com/read/28430646/immunotherapeutic-target-expression-on-breast-tumors-can-be-amplified-by-hormone-receptor-antagonism-a-novel-strategy-for-enhancing-efficacy-of-targeted-immunotherapy
#3
Ritika Jaini, Matthew G Loya, Charis Eng
Immunotherapy has historically been successful in highly antigenic tumors but has shown limited therapeutic efficacy in non-antigenic tumors such as breast cancers. Our previous studies in autoimmunity have demonstrated that increased antigen load within a tissue enhances immune reactivity against it. We therefore hypothesized that enhancing expression of target proteins on breast tumors can increase efficacy of targeted immunotherapy. We hypothesized that antagonism of the estrogen receptor (ER) can increase expression of targets that are hormonally regulated and facilitate enhanced tumor recognition by targeted immunotherapy...
March 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28428880/long-term-complete-remission-with-ipilimumab-in-metastatic-castrate-resistant-prostate-cancer-case-report-of-two-patients
#4
Luc Cabel, Elika Loir, Gwenaelle Gravis, Pernelle Lavaud, Christophe Massard, Laurence Albiges, Giulia Baciarello, Yohann Loriot, Karim Fizazi
BACKGROUND: Prostate cancer is one of the most common cancers in men and the fourth leading cause of cancer mortality worldwide. Although major progress has been achieved in the last years for patients with metastatic castrate-resistant prostate cancer (mCRPC), thanks to next-generation androgen receptor axis targeted drugs, taxanes, and bone-targeted agents, immunotherapy has not been widely approved and used for the treatment of prostate cancer. Two large studies with ipilimumab, an anti-CTLA-4 (cytotoxic T-lymphocyte antigen 4) antibody reported improved progression-free survival, but not statistically improved overall survival at the primary analysis (CA184 043 and CA184 095)...
2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28427519/a-comprehensive-review-of-immunotherapies-in-prostate-cancer
#5
REVIEW
Manuel Caitano Maia, Aaron R Hansen
Prostate cancer is the second most common malignant neoplasm in men worldwide and the fifth cause of cancer-related death. Although multiple new agents have been approved for metastatic castration resistant prostate cancer over the last decade, it is still an incurable disease. New strategies to improve cancer control are needed and agents targeting the immune system have shown encouraging results in many tumor types. Despite being attractive for immunotherapies due to the expression of various tumor associated antigens, the microenvironment in prostate cancer is relatively immunosuppressive and may be responsible for the failures of various agents targeting the immune system in this disease...
May 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/28405516/assessment-of-tumor-infiltrating-tcrv%C3%AE-9v%C3%AE-2-%C3%AE-%C3%AE-lymphocyte-abundance-by-deconvolution-of-human-cancers-microarrays
#6
Marie Tosolini, Frédéric Pont, Mary Poupot, François Vergez, Marie-Laure Nicolau-Travers, David Vermijlen, Jean-Emmanuel Sarry, Francesco Dieli, Jean-Jacques Fournié
Most human blood γδ cells are cytolytic TCRVγ9Vδ2(+) lymphocytes with antitumor activity. They are currently investigated in several clinical trials of cancer immunotherapy but so far, their tumor infiltration has not been systematically explored across human cancers. Novel algorithms allowing the deconvolution of bulk tumor transcriptomes to find the relative proportions of infiltrating leucocytes, such as CIBERSORT, should be appropriate for this aim but in practice they fail to accurately recognize γδ T lymphocytes...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28405515/psca-and-muc1-in-non-small-cell-lung-cancer-as-targets-of-chimeric-antigen-receptor-t-cells
#7
Xinru Wei, Yunxin Lai, Jin Li, Le Qin, Youdi Xu, Ruocong Zhao, Baiheng Li, Simiao Lin, Suna Wang, Qiting Wu, Qiubin Liang, Muyun Peng, Fenglei Yu, Yangqiu Li, Xuchao Zhang, Yilong Wu, Pentao Liu, Duanqing Pei, Yao Yao, Peng Li
In recent years, immunotherapies, such as those involving chimeric antigen receptor (CAR) T cells, have become increasingly promising approaches to non-small-cell lung cancer (NSCLC) treatment. In this study, we explored the antitumor potential of prostate stem cell antigen (PSCA)-redirected CAR T and mucin 1 (MUC1)-redirected CAR T cells in tumor models of NSCLC. First, we generated patient-derived xenograft (PDX) mouse models of human NSCLC that maintained the antigenic profiles of primary tumors. Next, we demonstrated the expression of PSCA and MUC1 in NSCLC, followed by the generation and confirmation of the specificity and efficacy of PSCA- and MUC1-targeting CAR T cells against NSCLC cell lines in vitro...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28393575/using-circulating-cell-free-dna-to-monitor-personalized-cancer-therapy
#8
Michael Oellerich, Ekkehard Schütz, Julia Beck, Philipp Kanzow, Piers N Plowman, Glen J Weiss, Philip D Walson
High-quality genomic analysis is critical for personalized pharmacotherapy in patients with cancer. Tumor-specific genomic alterations can be identified in cell-free DNA (cfDNA) from patient blood samples and can complement biopsies for real-time molecular monitoring of treatment, detection of recurrence, and tracking resistance. cfDNA can be especially useful when tumor tissue is unavailable or insufficient for testing. For blood-based genomic profiling, next-generation sequencing (NGS) and droplet digital PCR (ddPCR) have been successfully applied...
April 10, 2017: Critical Reviews in Clinical Laboratory Sciences
https://www.readbyqxmd.com/read/28391357/phase-i-iia-clinical-trial-of-a-novel-htert-peptide-vaccine-in-men-with-metastatic-hormone-naive-prostate-cancer
#9
Wolfgang Lilleby, Gustav Gaudernack, Paal F Brunsvig, Ljiljana Vlatkovic, Melanie Schulz, Kate Mills, Knut Håkon Hole, Else Marit Inderberg
In newly diagnosed metastatic hormone-naive prostate cancer (mPC), telomerase-based immunotherapy with the novel hTERT peptide vaccine UV1 can induce immune responses with potential clinical benefit. This phase I dose escalation study of UV1 evaluated safety, immune response, effects on prostate-specific antigen (PSA) levels, and preliminary clinical outcome. Twenty-two patients with newly diagnosed metastatic hormone-naïve PC (mPC) were enrolled; all had started androgen deprivation therapy and had no visceral metastases...
April 8, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28376158/role-of-antigen-spread-and-distinctive-characteristics-of-immunotherapy-in-cancer-treatment
#10
James L Gulley, Ravi A Madan, Russell Pachynski, Peter Mulders, Nadeem A Sheikh, James Trager, Charles G Drake
Immunotherapy is an important breakthrough in cancer. US Food and Drug Administration-approved immunotherapies for cancer treatment (including, but not limited to, sipuleucel-T, ipilimumab, nivolumab, pembrolizumab, and atezolizumab) substantially improve overall survival across multiple malignancies. One mechanism of action of these treatments is to induce an immune response against antigen-bearing tumor cells; the resultant cell death releases secondary (nontargeted) tumor antigens. Secondary antigens prime subsequent immune responses (antigen spread)...
April 1, 2017: Journal of the National Cancer Institute
https://www.readbyqxmd.com/read/28363913/combination-immunotherapy-targets-castration-resistant-prostate-cancer
#11
(no author information available yet)
Targeted therapies that inactivate MDSCs yet spare T-cell function enhance immune checkpoint blockade.
March 31, 2017: Cancer Discovery
https://www.readbyqxmd.com/read/28351299/recognizing-and-managing-on-toxicities-in-cancer-immunotherapy
#12
REVIEW
Liu Yang, Huifang Yu, Shuang Dong, Yi Zhong, Sheng Hu
Over the past 4 years, cancer immunotherapy has significantly prolonged survival time of patients with prostate cancer, melanoma, lung cancer, and liver cancer, but its side effects are also impressive. Different types of the immune therapeutic agents have different on-target or off-target toxicity due to high affinity or weak specificity, respectively. Treatment toxicity spectrums vary greatly even in patients with the same type of cancer. Common toxicities are fevers, chills, diarrhea colitis, maculopapular rash, hepatitis, and hormone gland disorder; therefore, routine monitoring of thyroid function, liver function, renal function, and complete blood count are absolutely necessary once treatment begins...
March 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28345023/enhancement-of-psma-directed-car-adoptive-immunotherapy-by-pd-1-pd-l1-blockade
#13
Inna Serganova, Ekaterina Moroz, Ivan Cohen, Maxim Moroz, Mayuresh Mane, Juan Zurita, Larissa Shenker, Vladimir Ponomarev, Ronald Blasberg
Chimeric antigen receptor (CAR) T cell therapy in hematologic malignancies has shown remarkable responses, but the same level of success has not been observed in solid tumors. A new prostate cancer model (Myc-CaP:PSMA(+)) and a second-generation anti-hPSMA human CAR T cells expressing a Click Beetle Red luciferase reporter) were used to study hPSMA targeting and assess CAR T cell trafficking and persistence by bioluminescence imaging (BLI). We investigated the antitumor efficacy of human CAR T cells targeting human prostate-specific membrane antigen (hPSMA), in the presence and absence of the target antigen; first alone and then combined with a monoclonal antibody targeting the human programmed death receptor 1 (anti-hPD1 mAb)...
March 17, 2017: Molecular Therapy Oncolytics
https://www.readbyqxmd.com/read/28344878/targeting-cytokine-signaling-checkpoint-cis-activates-nk-cells-to-protect-from-tumor-initiation-and-metastasis
#14
Eva M Putz, Camille Guillerey, Kevin Kos, Kimberley Stannard, Kim Miles, Rebecca B Delconte, Kazuyoshi Takeda, Sandra E Nicholson, Nicholas D Huntington, Mark J Smyth
The cytokine-induced SH2-containing protein CIS belongs to the suppressor of cytokine signaling (SOCS) protein family. Here, we show the critical role of CIS in suppressing natural killer (NK) cell control of tumor initiation and metastasis. Cish-deficient mice were highly resistant to methylcholanthrene-induced sarcoma formation and protected from lung metastasis of B16F10 melanoma and RM-1 prostate carcinoma cells. In contrast, the growth of primary subcutaneous tumors, including those expressing the foreign antigen OVA, was unchanged in Cish-deficient mice...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28322260/prostate-cancer-new-model-to-test-immunotherapy-combinations
#15
Clemens Thoma
No abstract text is available yet for this article.
March 21, 2017: Nature Reviews. Urology
https://www.readbyqxmd.com/read/28321130/effective-combinatorial-immunotherapy-for-castration-resistant-prostate-cancer
#16
Xin Lu, James W Horner, Erin Paul, Xiaoying Shang, Patricia Troncoso, Pingna Deng, Shan Jiang, Qing Chang, Denise J Spring, Padmanee Sharma, John A Zebala, Dean Y Maeda, Y Alan Wang, Ronald A DePinho
A significant fraction of patients with advanced prostate cancer treated with androgen deprivation therapy experience relapse with relentless progression to lethal metastatic castration-resistant prostate cancer (mCRPC). Immune checkpoint blockade using antibodies against cytotoxic-T-lymphocyte-associated protein 4 (CTLA4) or programmed cell death 1/programmed cell death 1 ligand 1 (PD1/PD-L1) generates durable therapeutic responses in a significant subset of patients across a variety of cancer types. However, mCRPC showed overwhelming de novo resistance to immune checkpoint blockade, motivating a search for targeted therapies that overcome this resistance...
March 30, 2017: Nature
https://www.readbyqxmd.com/read/28260512/polypurine-reverse-hoogsteen-hairpins-as-a-gene-silencing-tool-for-cancer
#17
Carlos J Ciudad, Laura Rodríguez, Xenia Villalobos, Alex J Félix, Véronica Noé
Polypurine reverse Hoogsteen (PPRH) molecules are DNA hairpins formed by two polypurine strands running in an antiparallel orientation and containing no nucleotide modifications. The two strands, linked by a pentathymidine loop, are bound through intramolecular reverse Hoogsteen bonds. Then, PPRHs can bind by Watson-Crick bonds to their corresponding polypyrimidine target in the dsDNA provoking a displacement of the polypurine strand of the duplex. We described the effect and mechanisms of action of PPRHs in cells using PPRHs designed against the template and coding strands of the dhfr gene...
March 1, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28255378/immunotherapy-and-gene-therapy-in-prostate-cancer-treatment
#18
T Grozescu, F Popa
There are few methods bringing several relatively recent advances in therapy of certain types of prostate cancer. Belonging to personalized therapies, they use cells (normal or pathologic) from the patient, modify and reintroduce them in the patient's body, leading to an increased efficiency against the neoplastic tissue, proving to increase the patient's lifespan and/ or tumor progression.
January 2017: Journal of Medicine and Life
https://www.readbyqxmd.com/read/28241742/3d-diversity-dynamics-differential-testing-a-proposed-pipeline-for-analysis-of-next-generation-sequencing-t-cell-repertoire-data
#19
Li Zhang, Jason Cham, Alan Paciorek, James Trager, Nadeem Sheikh, Lawrence Fong
BACKGROUND: Cancer immunotherapy has demonstrated significant clinical activity in different cancers. T cells represent a crucial component of the adaptive immune system and are thought to mediate anti-tumoral immunity. Antigen-specific recognition by T cells is via the T cell receptor (TCR) which is unique for each T cell. Next generation sequencing (NGS) of the TCRs can be used as a platform to profile the T cell repertoire. Though there are a number of software tools available for processing repertoire data by mapping antigen receptor segments to sequencing reads and assembling the clonotypes, most of them are not designed to track and examine the dynamic nature of the TCR repertoire across multiple time points or between different biologic compartments (e...
February 27, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/28239463/enhancing-adoptive-cancer-immunotherapy-with-v%C3%AE-2v%C3%AE-2-t-cells-through-pulse-zoledronate-stimulation
#20
Mohanad H Nada, Hong Wang, Grefachew Workalemahu, Yoshimasa Tanaka, Craig T Morita
BACKGROUND: Human γδ T cells expressing Vγ2Vδ2 T cell receptors monitor foreign- and self-prenyl pyrophosphate metabolites in isoprenoid biosynthesis to mediate immunity to microbes and tumors. Adoptive immunotherapy with Vγ2Vδ2 T cells has been used to treat cancer patients with partial and complete remissions. Most clinical trials and preclinical studies have used continuous zoledronate exposure to expand Vγ2Vδ2 cells where zoledronate is slowly diluted over the course of the culture...
2017: Journal for Immunotherapy of Cancer
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