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Related Concept Videos

Tumor Immunotherapy01:27

Tumor Immunotherapy

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Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.
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Targeted Cancer Therapies02:57

Targeted Cancer Therapies

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The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
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The Tumor Microenvironment02:17

The Tumor Microenvironment

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Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...
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Combination Therapies and Personalized Medicine02:50

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Combining two or more treatment methods increases the life span of cancer patients while reducing damage to vital organs or tissue from the overuse of a single treatment. Combination therapy also targets different cancer-inducing pathways, thus reducing the chances of developing resistance to treatment.
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Cytotoxic T Cells-mediated Immune Response01:27

Cytotoxic T Cells-mediated Immune Response

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Cytotoxic T cells are a vital component of the immune system. They have the remarkable ability to identify and target antigens on infected or abnormal cells. These antigens often originate from intracellular pathogens such as viruses or abnormal proteins cancer cells produce.
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Interactions Between Signaling Pathways01:19

Interactions Between Signaling Pathways

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Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
Convergence and divergence, and cross-talk between signaling pathways
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Updated: Oct 6, 2025

Polymalic Acid-based Nano Biopolymers for Targeting of Multiple Tumor Markers: An Opportunity for Personalized Medicine?
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Multifunctional Nanomodulators Regulate Multiple Pathways To Enhance Antitumor Immunity.

Yadan Zheng1,2, Zhanzhan Zhang1,2, Qi Liu1,2

  • 1State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Functional Polymer Materials of Ministry of Education, College of Chemistry, Nankai University, Tianjin 300071, China.

ACS Applied Bio Materials
|January 13, 2022
PubMed
Summary

This study introduces a multifunctional nanomodulator (MFNM) to overcome tumor immunosuppression in cancer immunotherapy. The MFNM delivers multiple drugs and antibodies, enhancing antitumor immunity for improved therapeutic efficiency.

Keywords:
codelivery systemimmunotherapymultiple immune pathwaysnanomodulatortumor microenvironment

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Area of Science:

  • Biomedical Engineering
  • Nanotechnology
  • Immunology

Background:

  • Immunosuppression within the tumor microenvironment limits current immunotherapy efficacy.
  • Monotherapies struggle to address the complex immune cell interactions in tumors.

Purpose of the Study:

  • To develop a multifunctional nanomodulator (MFNM) for co-delivery of diverse immunomodulators.
  • To enhance antitumor immunity by simultaneously modulating multiple immune pathways.

Main Methods:

  • Designed an MFNM with a mesoporous silica nanoparticle (MSN) core and a pH-responsive polymer shell.
  • Encapsulated small-molecule drugs (cyclophosphamide) and monoclonal antibodies (αPD-L1, α4-1BB) within the MFNM.
  • Utilized the MFNM's antibody-modifiable shell for targeted immune regulation.

Main Results:

  • The MFNM successfully co-delivered cyclophosphamide, αPD-L1, and α4-1BB antibodies to tumors.
  • Demonstrated regulation of multiple immune pathways and enhanced antitumor immunity.
  • Showcased the MFNM's adaptability for various tumor types through customizable drug and antibody loading.

Conclusions:

  • The MFNM platform offers a promising strategy for advanced cancer immunotherapies.
  • Simultaneous modulation of multiple biological processes via MFNM enhances therapeutic outcomes.
  • MFNM provides a versatile approach for overcoming tumor immunosuppression.