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- Cancer and Oncology
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3. Latest advances in the development of CAR & TCR T-cell treatments for solid tumours
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4. Mode of action of T cells engineered with CAR or TCR for cancer treatment
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5. Immunotherapy: insights from advanced disease
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6. Recent advances in the field of non-coding RNAs in cancer
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7. How tumor-microenvironment interactions drive or inhibit metastasis
- Prof. Isaac P. Witz
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8. A novel cancer therapy to stimulate oncogenic ERK signalling
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12. Immunotherapy in lung cancer
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- Clinical Practice
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35. Enhancing innate anti-tumour immunity: lessons from virotherapy and STING agonism 2
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37. Biologics as a treatment strategy in food allergy
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39. Studying immune responses “one cell at a time”
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59. Vaccines and the fight against antimicrobial resistance 2
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60. Vaccines as a weapon against antibiotic resistance
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63. Successes and failures with vaccines
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64. Immunology, the microbiome and future perspectives
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65. Impact of the HPV vaccine programme – a changing landscape
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76. Pharmacokinetics, -dynamics and dosing considerations in children
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77. Why in vitro permeation test – and not in vivo?
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78. The future of plasma-derived medicinal products (PDMP)
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80. Recent advances in the development of gene delivery technologies
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81. Preclinical translation of mesenchymal stem cell therapies
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82. Modulating gene expression to treat diseases
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84. AI and big data in drug discovery
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86. Binding kinetics in drug discovery
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87. Modeling of antibody-drug conjugate pharmacokinetics
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89. Current challenges in the design of antibody-drug conjugates
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91. Latest development in therapy-related autophagy research
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92. Respiratory syncytial virus vaccination
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94. Advances in gene therapy for respiratory diseases 2
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95. Asthma
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96. New drugs for asthma
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98. Updates in chronic obstructive pulmonary disease (COPD)
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Printable Handouts
Navigable Slide Index
- Introduction
- Cancer-centric view
- Issues with the cancer-centric view
- THE CANCER IS SURROUNDED BY THE PATIENT
- The cancer patient
- Tumor Organismal Environment (TOE)
- Overview of the Tumor Microenvironment (TME)
- Plants and their immediate environment
- Differential effects of ECM proteins on actin and focal adhesions
- ECM proteins impact lung metastasis formation
- The in vivo environment accelerates tumorigenesis
- The Tumor Microenvironment (TME)
- Principles of intra-TME interactions
- Heraclitus
- Bidirectional crosstalk
- Principles of intra-TME interactions: Tumor progression
- Tumor progression and regression
- Tumor dormancy
- Principles of intra-TME interactions: Pro- or anti-malignancy functions
- Principles of intra-TME interactions: Hijacking physiological elements
- Tumor cells hijack physiological elements
- Principles of intra-TME interactions: Different tumor microenvironments
- Metastasis kills
- Site-specific metastasis
- Early observations on site-specific metastasis
- Stephen Paget
- The TME shapes the phenotype of the tumor
- The pre-metastatic niche
- Formation of the pre-metastatic niche
- Tumor-derived extracellular vesicles (EVs) and the pre-metastatic organ
- The metastatic cascade (1)
- Regulation of the metastatic cascade
- Epithelial to Mesenchymal Transition (EMT)
- The TME regulates the EMT
- The metastatic cascade (2)
- Intravasation
- Circulating cancer cells interact with platelets
- The role of platelets
- Extravasation
- Extravasation steps of cancer cells
- Selectins and tumor cell rolling
- The functional role of integrins in extravasation
- Integrins involved in the firm adhesion of tumor cells to the endothelium
- Chemokine receptor-mediated migration
- Targeted migration of chemokine receptor-expressing cancer cells
- The fate of tumor cells at metastatic organ sites
- Metastatic-promoting and metastatic-restraining factors
- Metastasis-restraining signals
- The short peptide of human HBB (Metox) inhibits tumor growth
- Metox inhibits neuroblastoma metastasis
- Interactions between tumors and their microenvironment
- Targeting tumor-TME interactions
- 2018 Nobel Prize laureates James Allison & Tasuku Honjo
- Immune checkpoint blocking enables TME-infiltrating T cells to kill tumor cells
- A history of exploring cancer in context
- A rephrased statement of Stephen Paget (IPW)
- Witz Team 2020-2021
- My sincere thanks
Topics Covered
- Tumor Organismal Environment (TOE) and Tumor Microenvironment (TME)
- Principles of intra-TME interactions
- Tumor progression and regression
- Site-specific metastasis
- The pre-metastatic niche
- The metastatic cascade
- Epithelial to Mesenchymal Transition (EMT)
- Targeting tumor-TME interactions
- Immune checkpoint blocking enables TME-infiltrating T cells to kill tumor cells
Links
Series:
Categories:
Therapeutic Areas:
Talk Citation
Witz, I.P. (2021, March 31). How tumor-microenvironment interactions drive or inhibit metastasis [Video file]. In The Biomedical & Life Sciences Collection, Henry Stewart Talks. Retrieved February 5, 2025, from https://doi.org/10.69645/TCZM2907.Export Citation (RIS)
Publication History
Financial Disclosures
- Prof. Isaac P. Witz has not informed HSTalks of any commercial/financial relationship that it is appropriate to disclose.
A selection of talks on Cancer
Transcript
Please wait while the transcript is being prepared...
0:00
Hello, I'm Professor Isaac Witz,
head of the tumor microenvironment and metastasis research lab at
the Shmunis School of Biomedicine & Cancer Research at Tel Aviv University.
I am going to talk to you about the role of
the microenvironment in the progression of tumor cells towards metastasis.
The tumor microenvironment has become a very extensive research area.
Any single topic touched upon in this presentation would require a separate lecture.
Today's lecture will therefore only be an overview of this multi-disciplinary field.
0:38
To start, let me take you back to the 70s and 80s of the last century.
The cancer research field at that time,
was dominated by the concept that oncogenes and
tumor-suppressor genes are the only and exclusive causes of cancer.
Let me read you one sentence from a paper published in '83 by Michael Bishop,
who together with Harold Varmus was awarded the Nobel Prize for the discovery of oncogenes:
"A common set of cellular genes may help to mediate
the genesis of all tumors, whatever their cause".
Please judge for yourself to what extent you agree with this statement.
1:25
The cancer-centric view did not provide
a satisfactory mechanism for the progression towards metastasis.
Two leading cancer geneticists,
the late Ruth Sager and Bert Vogelstein, raised this important issue.