Unsupervised and supervised discovery of tissue cellular neighborhoods from cell phenotypes DOI Creative Commons
Yuxuan Hu, Jiazhen Rong,

Yafei Xu

et al.

Nature Methods, Journal Year: 2024, Volume and Issue: 21(2), P. 267 - 278

Published: Jan. 8, 2024

Abstract It is poorly understood how different cells in a tissue organize themselves to support functions. We describe the CytoCommunity algorithm for identification of cellular neighborhoods (TCNs) based on cell phenotypes and their spatial distributions. learns mapping directly from phenotype space TCN using graph neural network model without intermediate clustering embeddings. By leveraging pooling, enables de novo condition-specific predictive TCNs under supervision sample labels. Using several types omics data, we demonstrate that can identify variable sizes with substantial improvement over existing methods. analyzing risk-stratified colorectal breast cancer revealed new granulocyte-enriched cancer-associated fibroblast-enriched specific high-risk tumors altered interactions between neoplastic immune or stromal within TCNs. perform unsupervised supervised analyses maps enable discovery cell–cell communication patterns across scales.

Language: Английский

Cancer vaccines as promising immuno-therapeutics: platforms and current progress DOI Creative Commons
Jian Liu,

Minyang Fu,

Manni Wang

et al.

Journal of Hematology & Oncology, Journal Year: 2022, Volume and Issue: 15(1)

Published: March 18, 2022

Abstract Research on tumor immunotherapy has made tremendous progress in the past decades, with numerous studies entering clinical evaluation. The cancer vaccine is considered a promising therapeutic strategy of solid tumors. Cancer stimulates anti-tumor immunity antigens, which could be delivered form whole cells, peptides, nucleic acids, etc . Ideal vaccines overcome immune suppression tumors and induce both humoral cellular immunity. In this review, we introduced working mechanism summarized four platforms for development. We also highlighted research vaccines, especially focusing their application efficacy, might hopefully facilitate future design vaccine.

Language: Английский

Citations

495

Metastatic colorectal cancer: mechanisms and emerging therapeutics DOI Creative Commons
Alice E. Shin, Filippo G. Giancotti,

Anil K. Rustgi

et al.

Trends in Pharmacological Sciences, Journal Year: 2023, Volume and Issue: 44(4), P. 222 - 236

Published: Feb. 23, 2023

Language: Английский

Citations

276

Understanding the tumor microenvironment for effective immunotherapy DOI Creative Commons

Habib Sadeghi Rad,

James Monkman, Majid Ebrahimi Warkiani

et al.

Medicinal Research Reviews, Journal Year: 2020, Volume and Issue: 41(3), P. 1474 - 1498

Published: Dec. 4, 2020

Abstract Advances in immunotherapy have led to durable and long‐term benefits a subset of patients across number solid tumor types. Understanding the subsets that respond immune checkpoint inhibitors at cellular level, context their microenvironment (TME) is becoming increasingly important. The TME composed heterogeneous milieu cells. landscape can inhibit or promote initiation progression; thus, deeper understanding immunity necessary develop immunotherapeutic strategies. Recent developments focused on characterizing contexture (type, density, function) discover mechanisms biomarkers may predict treatment outcomes. This has, part, been powered by advancements spatial characterization technologies. In this review article, we address role specific cells within various stages progression how determinants affecting growth are used therapeutically.

Language: Английский

Citations

242

Differentiation and Regulation of TH Cells: A Balancing Act for Cancer Immunotherapy DOI Creative Commons
Amrita Basu, Ganesan Ramamoorthi,

Gabriella Albert

et al.

Frontiers in Immunology, Journal Year: 2021, Volume and Issue: 12

Published: May 3, 2021

Current success of immunotherapy in cancer has drawn attention to the subsets T H cells tumor which are critical for activation anti-tumor response either directly by themselves or stimulating cytotoxic cell activity. However, presence immunosuppressive pro-tumorigenic milieu further contributes complexity regulation cell-mediated immune response. In this review, we present an overview multifaceted positive and negative effects cells, with emphasis on different subtypes various how a delicate balance contradictory signals can influence overall immunotherapy. We focus regulatory network that encompasses dendritic cell-induced CD4 + 1 subsequent priming CD8 along intersecting anti-inflammatory 2 discuss other infiltrating such as immunostimulatory 9 fh reg duality 17 function contribute tip anti- vs responses tumor. highlight developing knowledge against neoantigens/oncodrivers, impact current strategies immunity, opposing action be explored amplify patients. Understanding nuances molecular framework undergirding balancing act between is rational designing immunotherapies bypass therapeutic escape maximize potential

Language: Английский

Citations

231

Personalized Cancer Vaccines: Clinical Landscape, Challenges, and Opportunities DOI Creative Commons
Colby S. Shemesh, Joy Hsu, Iraj Hosseini

et al.

Molecular Therapy, Journal Year: 2020, Volume and Issue: 29(2), P. 555 - 570

Published: Sept. 30, 2020

Tremendous innovation is underway among a rapidly expanding repertoire of promising personalized immune-based treatments. Therapeutic cancer vaccines (TCVs) are attractive systemic immunotherapies that activate and expand antigen-specific CD8+ CD4+ T cells to enhance anti-tumor immunity. Our review highlights key issues impacting TCVs in clinical practice reports on progress development. We the mechanism action, immune-monitoring, dosing strategies, combinations, obstacles, regulation vaccines. Most trials ongoing represent diverse platforms with predominantly early investigations mRNA, DNA, or peptide-based targeting strategies against neoantigens solid tumors, many combination immunotherapies. Multiple delivery systems, routes administration, used. Intravenous intramuscular administration common, including by lipid nanoparticles. Absorption biodistribution impact antigen uptake, expression, presentation, affecting strength, speed, duration immune response. The emerging illustrate complexity developing this class innovative Methodical testing multiple potential factors influencing responses, as well refined quantitative methodologies facilitate optimal could help resolve uncertainty therapeutic approaches. To increase likelihood success bringing these medicines patients, several unique development challenges must be overcome. have been heavily investigated for past 50 years investigational aim elicit new, strengthen existing, cytotoxic cell lymphocyte (CTL) tumor responses.1Finn O.J. dawn prevention.Nat. Rev. Immunol. 2018; 18: 183-194Crossref PubMed Scopus (95) Google Scholar,2Falzone L. Salomone S. Libra M. Evolution pharmacological treatments at turn third millennium.Front. Pharmacol. 9: 1300Crossref (243) Scholar As target antigens associated cells, approach can safer than other therapies avoiding off-target effects. evolved drugs immuno-oncology space, they comprise set antigens, adjuvants, vectors, methods.3Lopes A. Vandermeulen G. Préat V. Cancer DNA vaccines: current preclinical developments future perspectives.J. Exp. Clin. Res. 2019; 38: 146Crossref (108) Historically, hundreds TCV dozens pivotal were largely unsuccessful demonstrating clear benefit.4Rahma O.E. Gammoh E. Simon R.M. Khleif S.N. Is "3+3" dose-escalation phase I trial design suitable vaccine development? A recommendation alternative design.Clin. 2014; 20: 4758-4767Crossref (32) Scholar,5Tan A.C.L. Goubier Kohrt H.E. analysis 2 3 trial.J. Immunother. Cancer. 2015; 3: 48Crossref (21) This likely due not limited (1) suboptimal (2) lack effective (3) poorly immunogenic platforms, (4) an insufficient number CTLs entering immunosuppression related high disease burden, poor fitness, immunosuppressive microenvironment.6van der Burg S.H. Correlates activity novel vaccines.Semin. 39: 119-136Crossref (28) Scholar,7Tran T. Blanc C. Granier Saldmann Tanchot Tartour vaccine: building from lessons past.Semin. Immunopathol. 41: 69-85Crossref Renewed investment now underway, advanced platforms. Among recent advances neoantigen-based selective individualized new approaches activities compared conventional shared antigens.8Wirth T.C. Kühnel F. Neoantigen Targeting—dawn era immunotherapy?.Front. 2017; 8: 1848Crossref (50) Scholar, 9Zhang X. Sharma P.K. Peter Goedegebuure Gillanders W.E. Personalized mutanome.Vaccine. 35: 1094-1100Crossref (43) 10Sahin U. Türeci Ö. immunotherapy.Science. 359: 1355-1360Crossref (343) Given neoantigen load has correlated response existing immunotherapies,11Desrichard Snyder Chan T.A. applications immunotherapy.Clin. 2016; 22: 807-812Crossref (136) Scholar,12Łuksza Riaz N. Makarov Balachandran V.P. Hellmann M.D. Solovyov Rizvi N.A. Merghoub Levine A.J. et al.A fitness model predicts tumour checkpoint blockade immunotherapy.Nature. 551: 517-520Crossref (292) compelling targets personalizing activity. 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Language: Английский

Citations

210

Reversing T-cell Exhaustion in Cancer: Lessons Learned from PD-1/PD-L1 Immune Checkpoint Blockade DOI Open Access
Natalija Budimir, Graham D. Thomas, Joseph S. Dolina

et al.

Cancer Immunology Research, Journal Year: 2021, Volume and Issue: 10(2), P. 146 - 153

Published: Dec. 22, 2021

Anti-PD-1/PD-L1 immune checkpoint blockade (ICB) therapy has revolutionized the treatment of many types cancer over past decade. The initial therapeutic hypothesis underlying mechanism anti-PD-1/PD-L1 ICB was built around premise that it acts locally in tumor, reversing exhaustion PD-1hiCD8+ T cells by "releasing brakes." However, recent studies have provided unprecedented insight into complexity within CD8+ T-cell pool tumor microenvironment (TME). Single-cell RNA sequencing and epigenetic profiling identified novel cell surface markers, revealing heterogeneity states classified as unique. Moreover, these highlighted following ICB, outside TME possess a differential capacity to respond, mobilize TME, seed an effective antitumor response. In aggregate, developments led reevaluation our understanding both mechanisms sites action therapy. Here, we discuss evidence for reversibility after its implication further development immunotherapy.

Language: Английский

Citations

185

CD4 T-Cell Exhaustion: Does It Exist and What Are Its Roles in Cancer? DOI Creative Commons
Alexandra Miggelbrink, Joshua Jackson, Selena Lorrey

et al.

Clinical Cancer Research, Journal Year: 2021, Volume and Issue: 27(21), P. 5742 - 5752

Published: June 14, 2021

Abstract In chronic infections and in cancer, persistent antigen stimulation under suboptimal conditions can lead to the induction of T-cell exhaustion. Exhausted T cells are characterized by an increased expression inhibitory markers a progressive hierarchical loss function. Although cancer-induced exhaustion CD8 has been well-characterized identified as therapeutic target (i.e., via checkpoint inhibition), in-depth analyses other immune cell types, including CD4 cells, is wanting. While perhaps attributable contextual discovery amidst viral infection, lack thorough inquiry into particularly surprising given their important role orchestrating responses through T-helper direct cytotoxic functions. Current work suggests that may indeed be prevalent, have implicated various disease pathologies, such likely clinically relevant. Defining phenotypic subsets how it influences severity will crucial understanding collective dysfunction variety pathologies. this review, we discuss mechanistic clinical evidence for cancer. Further insight derivation manifestation exhaustive processes could reveal novel targets abrogate cancer induce robust antitumor response.

Language: Английский

Citations

175

Improving head and neck cancer therapies by immunomodulation of the tumour microenvironment DOI
Ayana T. Ruffin,

Housaiyin Li,

Lazar Vujanović

et al.

Nature reviews. Cancer, Journal Year: 2022, Volume and Issue: 23(3), P. 173 - 188

Published: Dec. 1, 2022

Language: Английский

Citations

165

Dual Effect of Immune Cells within Tumour Microenvironment: Pro- and Anti-Tumour Effects and Their Triggers DOI Open Access

Alicia Cristina Peña-Romero,

Esteban Orenes‐Piñero

Cancers, Journal Year: 2022, Volume and Issue: 14(7), P. 1681 - 1681

Published: March 25, 2022

Our body is constantly exposed to pathogens or external threats, but with the immune response that our can develop, we fight off and defeat possible attacks infections. Nevertheless, sometimes this threat comes from an internal factor. Situations such as existence of a tumour also cause system (IS) be put on alert. Indeed, link between immunology cancer evident these days, IS being used one important targets for treating cancer. able eliminate those abnormal damaged cells found in body, preventing uncontrolled proliferation lead However, several cases, escape IS. It has been observed cells, extracellular matrix, blood vessels, fat various molecules could support growth development. Thus, developing receives structural support, irrigation energy, among other resources, making its survival progression possible. All components accompany help survive grow are called microenvironment (TME). Given importance presence development process, review will focus TME: cells. Immune anti-tumour protecting us against cells; nevertheless, they behave pro-tumoural thus promoting survival. In review, pro-tumour immunity discussed. addition, TME influence dual effect analysed.

Language: Английский

Citations

152

Bioinstructive implantable scaffolds for rapid in vivo manufacture and release of CAR-T cells DOI
Pritha Agarwalla, Edikan A. Ogunnaike,

Sarah Ahn

et al.

Nature Biotechnology, Journal Year: 2022, Volume and Issue: 40(8), P. 1250 - 1258

Published: March 24, 2022

Language: Английский

Citations

133