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Application of toll-like receptors (TLRs) and their agonists in cancer vaccines and immunotherapy.

Toll-like receptors (TLRs) are pattern recognition receptors (PRRs) expressed in various immune cell types and perform multiple purposes and duties involved in the induction of innate and adaptive immunity. Their capability to propagate immunity makes them attractive targets for the expansion of numerous immunotherapeutic approaches targeting cancer. These immunotherapeutic strategies include using TLR ligands/agonists as monotherapy or combined therapeutic strategies. Several TLR agonists have demonstrated significant efficacy in advanced clinical trials. In recent years, multiple reports est

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… PF-3512676, one of the earlier synthetic TLR9 agonists to treat melanoma patients, increases pDC and mDC frequency, along with the release of inflammatory cytokines, while markedly reducing Treg cell population in the sentinel lymph nodes (SLN) ( 138 ). …

The Multifaceted Role of Annexin A1 in Colorectal Cancer: From Molecular Mechanisms to Predictive and Prognostic Implications.

Annexin A1 (ANXA1), a calcium-dependent phospholipid-binding protein, is considered a key modulator of cancer biology. Numerous pieces of evidence support its multifaceted involvement in tumor progression, metastatic dissemination, immune escape, and resistance to therapy in various malignancies, such as melanoma, along with liver, lung, and digestive tract tumors, including stomach and colorectal cancer (CRC). Although colon and rectal cancer (RC) exhibit overlapping characteristics, they are classified as separate clinical entities due to differences in tumor biology and therapy approaches.

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… Moreover, ANXA1 expression is significantly increased in sentinel lymph node micrometastases compared to non-metastatic lymph nodes ( p < 0.01), suggesting its involvement in the early phases of CRC metastasis [ 96 ]. … Up-regulation of hnRNP A1, Ezrin, tubulin β-2C and Annexin A1 in sentinel lymph nodes of colorectal cancer World J. Gastroenterol. 2010 16 4670 4676 10.3748/wjg.v16.i37.4670 20872967 PMC2951517 97. Mohammadi P. Mohammadi S. Eghbalian A. Meyabadi A.J. Alizadeh M. Taefehshokr S. …

Exploring the dual role of B cells in solid tumors: implications for head and neck squamous cell carcinoma.

In the tumor milieu of head and neck squamous cell carcinoma (HNSCC), distinct B cell subpopulations are present, which exert either pro- or anti-tumor activities. Multiple factors, including hypoxia, cytokines, interactions with tumor cells, and other immune infiltrating lymphocytes (TILs), alter the equilibrium between the dual roles of B cells leading to cancerogenesis. Certain B cell subsets in the tumor microenvironment (TME) exhibit immunosuppressive function. These cells are known as regulatory B (Breg) cells. Breg cells suppress immune responses by secreting a series of immunosuppressi

Translational progress on tumor biomarkers.

There is an urgent need to apply basic research achievements to the clinic. In particular, mechanistic studies should be developed by bench researchers, depending upon clinical demands, in order to improve the survival and quality of life of cancer patients. To date, translational medicine has been addressed in cancer biology, particularly in the identification and characterization of novel tumor biomarkers. This review focuses on the recent achievements and clinical application prospects in tumor biomarkers based on translational medicine.

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… Prognostic value of HPV-mRNA in sentinel lymph nodes of cervical cancer patients with pN0-status. Oncotarget. 2015 doi: 10.18632/oncotarget.4132. doi: 10.18632/oncotarget.4132 . Iftner T, Becker S, Neis KJ, et al. …

Clinical activity of single-dose systemic oncolytic VSV virotherapy in patients with relapsed refractory T-cell lymphoma.

Clinical success with intravenous (IV) oncolytic virotherapy (OV) has to-date been anecdotal. We conducted a phase 1 clinical trial of systemic OV and investigated the mechanisms of action in responding patients. A single IV dose of vesicular stomatitis virus (VSV) interferon-β (IFN-β) with sodium iodide symporter (NIS) was administered to patients with relapsed/refractory hematologic malignancies to determine safety and efficacy across 4 dose levels (DLs). Correlative studies were undertaken to evaluate viremia, virus shedding, virus replication, and immune responses. Fifteen patients receive

Многоомичные биомаркеры, связанные с множественным склерозом: от менделианской случайности до прогнозирования наркотиков.

В настоящее время лечение и профилактика множественных склерозов (МС) по-прежнему сталкиваются с серьезными проблемами. Одним из важнейших методов проведения исследований в рамках реализации новых терапевтических стратегий стал менделийский анализ случайности (МСР). Соответственно, мы предполагаем, что существует причинно-следственная связь между генетическими вариантами конкретных плазменных белков и MS с помощью механизмов MR и что ключевые терапевтические цели можно точно определить путем интеграции многомерных аналитических подходов. В этом исследовании мы разработали всеобъемлющую аналити

Exogenous Heat Shock Proteins in Oncology: Biological Roles and Clinical Implications.

Heat shock proteins (HSPs), particularly HSP70 and HSP90, are highly conserved molecular chaperones that protect cells from a wide range of stressors and maintain proteome homeostasis. In cancer, tumor cells frequently overexpress and actively release HSPs into the extracellular space and circulation in response to metabolic alterations, hypoxia, oxidative stress, and therapeutic interventions. Consequently, circulating HSP levels are often elevated in patients with malignancies compared with healthy individuals. This review summarizes current evidence on the diagnostic, prognostic, and predic

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… In experimental animal models where the neutralization of HSP90α was carried out with the help of antibodies, there was a significant decrease in the density of lymphatic vessels in the primary tumor and a decrease in the frequency of metastasis to sentinel lymph nodes [ 25 ]. … Neutralization of this protein by antibodies leads to a decrease in the density of lymphatic vessels of the primary tumor and the frequency of metastasis to sentinel lymph nodes [ 25 ]. For the remaining described associations, there was no clinical confirmation of the causal role of eHSP. …

Transcriptome Meta-Analysis of Triple-Negative Breast Cancer Response to Neoadjuvant Chemotherapy.

Triple-negative breast cancer (TNBC) is a heterogeneous disease with varying responses to neoadjuvant chemotherapy (NAC). The identification of biomarkers to predict NAC response and inform personalized treatment strategies is essential. In this study, we conducted large-scale gene expression meta-analyses to identify genes associated with NAC response and survival outcomes. The results showed that immune, cell cycle/mitotic, and RNA splicing-related pathways were significantly associated with favorable clinical outcomes. Furthermore, we integrated and divided the gene association results from

Уникальные диагностические и терапевтические функции порфиринов и фтальокянинов в области фотодинамической терапии, визуализации и термостимы.

Порфиринические молекулы играют уникальную тераностическую роль в лечении болезней; они используются для отображения, обнаружения и лечения различных форм заболевших тканей, в том числе в связи с возрастной маркулярной дегенерацией и рядом различных видов рака. В настоящее время основное внимание уделяется клинической съемке опухолей; целенаправленной доставке фотосенитеров и потенциалу фотоэнцедентов в мультимодальных биомедицинских наноплатформах. В настоящем Обзоре подчеркиваются роли порфириновых молекул в области съемки и пдта, а также исследования по совершенствованию их селективного пог

Обязательный экзамен по патологии: лишний или необходимый?

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… OFP-01-002 Intraoperative evaluation of breast cancer sentinel lymph node metastasis with an automated molecular detection method as an alternative to standard pathological evaluation F. Beca * , E. Rios, P. Pontes, I. … OFP-01-008 The utility of cytological smears allied to the OSNA method for intraoperative analysis of sentinel lymph-node metastasis in breast cancer patients S. Foreid * , M. Martins, H. Pereira, M. …

Устные бесплатные бумажные сессии.

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Резюме: 31 Европейский конгресс патологии.

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Novel immunotherapeutic strategies of gastric cancer treatment.

Gastric cancer (GC) is the fourth most common cancer and the second most frequent cause of cancer-related deaths, accounting for 10.4% of cancer deaths worldwide. Despite the improvements, estimated cure rates for patients with advanced stages remain poor, and in the metastatic setting, chemotherapy is the mainstay of palliative therapy and results in objective response rates (ORRs) of only 20-40% and median overall survivals (OS) of 8-10 months. Therefore, many investigators believe that the potential for making significant progress lies in understanding and exploiting the molecular biology o

Combinational Antitumor Strategies Based on the Active Ingredients of Toad Skin and Toad Venom.

A multidrug combination strategy is an important mean to improve the treatment of cancer and is the mainstream scheme of clinical cancer treatment. The active ingredients of traditional Chinese medicine, represented by toad skin and toad venom, have the advantages of high efficiency, low toxicity, wide action and multiple targets and have become ideal targets in combined treatment strategies for tumors in recent years. Toad skin and toad venom are traditional Chinese animal medicines derived from Bufo bufo gargarizans Cantor or Bufo melanostictus Schneider that have shown excellent therapeutic

Свет в диагностике, терапии и хирургии.

Легкие и оптические методы оказывают глубокое воздействие на современную медицину, и в настоящее время в клинической практике используются многочисленные лазеры и оптические устройства для оценки состояния здоровья и лечения заболеваний. Последние достижения в области биомедицинской оптики позволили использовать все более сложные технологии, в частности технологии, которые объединяют фотонику с нанотехнологией, биоматериалами и генной инженерией. В настоящем Обзоре мы вновь обращаемся к основам взаимодействия легкой материи, описываем применение света в визуализации, диагностике, терапии и хир

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… The clinical utility of ICG for surgical guidance has been demonstrated for the mapping of sentinel lymph nodes 156 and in the detection of previously undetectable small liver metastases 157 . … lymph node mapping in breast cancer: a multicenter experience Breast Cancer Res Treat 143 333 42 2014 24337507 10.1007/s10549-013-2802-9 PMC3899688 157 Van Der Vorst JR Near-infrared fluorescence-guided resection of colorectal liver metastases Cancer 119 3411 3418 2013 23794086 10.1002/cncr.28203 PMC3775857 …

BREAST

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… Although sentinel lymph node biopsy (SLNB) is commonly used for ALN assessment, it faces practical challenges. …

Application of dendritic cell extracellular vesicles as a valid nanoparticle platform for cancer therapies: a narrative review.

The prevalence of cancers has actually increased during the last few decades, affecting almost all human societies. Despite progress in therapeutic protocols, cancer is still the main cause of global human mortality. Although the advancement of modern immunotherapeutic approaches can increase the survival rate of cancer patients, new modalities are essential for improved therapeutic outcomes. Extracellular vesicles (EVs) are nanosized particles and are used for cell-free approaches instead of direct whole cell-based administration. It has been thought that EVs can reduce the risks and side eff

The role of exosomes in lung cancer metastasis and clinical applications: an updated review.

Lung cancer is the leading cause of cancer-associated deaths accounting for 24% of all cancer deaths. As a crucial phase of tumor progression, lung cancer metastasis is linked to over 70% of these mortalities. In recent years, exosomes have received increasing research attention in their role in the induction of carcinogenesis and metastasis in the lung. In this review, recent studies on the contribution of exosomes to lung cancer metastasis are discussed, particularly highlighting the role of lung tumor-derived exosomes in immune system evasion, epithelial-mesenchymal transition, and angiogen

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… Exosomes released by melanoma cells prepare sentinel lymph nodes for tumor metastasis. Cancer Res. 2011;71:3792–801. doi: 10.1158/0008-5472.CAN-10-4455. 52. Kaplan RN, Riba RD, Zacharoulis S, Bramley AH, Vincent L, Costa C, et al. …

Implications of regulatory T cells in anti-cancer immunity: from pathogenesis to therapeutics.

Regulatory T cells (Tregs) play an essential role in maintaining immune tolerance and suppressing inflammation. However, Tregs present major hurdle in eliciting potent anti-cancer immune responses. Therefore, curbing the activity of Tregs represents a novel and efficient way towards successful immunotherapy of cancer. Moreover, there is an emerging interest in harnessing Treg-based strategies for augmenting anti-cancer immunity in different types of the disease. This review summarises the crucial mechanisms of Tregs' mediated suppression of anti-cancer immunity and strategies to suppress or to

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… Moreover, in gastric cancer, the presence of CD4 + CD25 + T cells in sentinel lymph nodes was suggestive of metastasis toward the downstream lymph nodes [ 37 ]. …

Immunotherapy for precision medicine in colorectal cancer.

IntroductionColorectal cancer (CRC) is the fourth most common cancer and second leading cause of cancer-related death in the United States. The implementation of CRC screening has decreased CRC incidence in adults older than 65 years. However, among young adults who experience more aggressive disease progression, CRC incidence has been increasing for decades. Immunotherapy represents a collection of innovative and promising approaches with greater efficacy and safety. In this review, we discuss modalities and selected targets of immunotherapies for CRCs that are guided by precision medicine.Ar

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… Zhen Y-H , Liu X-H , Yang Y , Phase I/II study of adjuvant immunotherapy with sentinel lymph node T lymphocytes in patients with colorectal cancer . Cancer Immunol Immunother . 2015 ; 64 ( 9 ): 1083 – 1093 . doi: 10.1007/s00262-015-1715-3 25990075 PMC4540776 159. …