Tumor-targeting peptides and small molecules as anti-cancer agents to overcome drug resistance
Ehsan Sarafraz-Yazdi, Matthew R Pincus, Josef Michl1
1Dept. Pathology, Box 25, 450 Clarkson Ave, BSB 4-122, Brooklyn, NY, 11203, USA. ehsun.yazdi@downstate.edu.
Abstract:
Since the introduction of chemotherapy in cancer therapy, development of resistance to every new therapeutic has been the universal experience. The growing understanding of cancer genomics, cancer-associated signal transduction pathways, and key protein drivers of cancer has enabled cancer biologists and medicinal chemists to develop targeted molecules to interfere with these pathways to tackle drug resistant cancers. However, to the dismay of oncologists, the clinical use of many of these tools has once again brought to the forefront the inevitable challenge of drug resistance. It is now understood that cancer resistance to different therapies involves multiple challenges that encompass the cancer cell itself as well as host physiology. This review presents small molecule inhibitors and peptides as two therapeutic approaches in anti-cancer drug development. Resistance to selected samples of these novel therapies is described in the context of cell autonomous resistance, the contributions of the tumor microenvironment, and germ line factors. For each approach, advantages and disadvantages are discussed on how to better overcome the inevitable challenge of resistance in cancer treatment.
Insights
Drug resistance remains a major challenge in cancer therapy. This review explores small molecule inhibitors and peptides, discussing resistance mechanisms and strategies to overcome them in targeted cancer treatment.
Area of Science:
- Oncology
- Pharmacology
- Cancer Biology
Background:
- Chemotherapy resistance is a universal challenge in cancer treatment.
- Advances in cancer genomics and signaling pathways have led to targeted therapies.
- Despite targeted approaches, drug resistance remains a significant clinical hurdle.
Purpose of the Study:
- To review small molecule inhibitors and peptides as anti-cancer therapeutic approaches.
- To describe resistance mechanisms to these novel therapies.
- To discuss strategies for overcoming cancer drug resistance.
Main Methods:
- Literature review of small molecule inhibitors and peptide-based anti-cancer therapies.
- Analysis of resistance mechanisms including cell-autonomous factors, tumor microenvironment, and germline factors.
- Discussion of advantages and disadvantages of each therapeutic approach in overcoming resistance.
Main Results:
- Cancer resistance involves complex interactions between cancer cells and host physiology.
- Resistance mechanisms are diverse, encompassing intrinsic cellular changes and extrinsic factors.
- Both small molecule inhibitors and peptides face challenges with acquired drug resistance.
Conclusions:
- Overcoming cancer drug resistance requires a multifaceted approach.
- Understanding resistance mechanisms is crucial for developing effective therapeutic strategies.
- Targeted therapies, including small molecule inhibitors and peptides, hold promise but require strategies to mitigate resistance for improved patient outcomes.
Related Concept Videos
Targeted Cancer Therapies
There are several types of targeted therapies against specific...
Targeted Cancer Therapies
There are several types of targeted therapies against specific...
Tumor Immunotherapy
Treatment Resistant Cancers
Modified-Release Drug Delivery Systems: Site-Targeted
Combination Therapies and Personalized Medicine
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...

