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Global Translational Medicine                                      Electrical stimulation in therapy and biology



            electrical impulses induce the opening of cellular   BMT has fewer side effects and may be better suited for
            components within the cell membrane, allowing large   patients  with  chronic  lymphedema,  particularly  when
            molecules to enter the cell.  This mechanism has   other  treatments  may  not  be  as  effective  or  difficult  to
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            important implications for gene therapy, as the efficient   administer.  Unlike many other therapies, BMT addresses
            delivery of genetic material to target cells is essential for   both the physical and functional symptoms of lymphedema
            treating genetic diseases. Electroporation enhances gene   and has a strong potential to improve patient outcomes
            transfer by increasing the uptake of DNA or RNA into   and quality of life.
            cells, improving therapeutic outcomes. Electroporation
            also facilitates drug uptake, making it valuable for   5. Limitations and challenges
            the delivery of chemotherapeutic agents, antiviral   ES is increasingly recognized as a significant approach
            medications, and other drugs requiring targeted    for modulating cellular processes, including proliferation,
            administration. By modifying the intensity, duration, and   differentiation, and migration. However, several
            frequency of electrical pulses, the delivery process can be   limitations and challenges were identified that render
            made more effective, allowing for greater precision and   ES impracticable in real-life practice. One of the most
            control in treatment applications. 50              significant challenges is the difficulty in eliciting an
              ES has also been reviewed as a complementary modality   intended cellular response,  as these  responses vary
            for  use with  conventional cancer  treatments,  including   depending on cell type, cell age, and environmental
            chemotherapy and radiation. ES may have potential for   conditions. For example, fibroblasts, neurons, and
            clinical application due to its ability to destabilize the   endothelial cells may each respond differently to the same
            membrane  of  cancer  cells  and  trigger  apoptosis.  Several   type of electrical input, making it difficult to predict the
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            studies  have  noted  that  ES  can increase  the  cytotoxic   effects of ES across various biological contexts.  Moreover,
            effect of  chemotherapy and  radiation on  tumor  cells by   factors such as disease states (e.g., cancer or diabetes) or
            increasing membrane permeability.  This sensitization of   certain culture  conditions can  further influence  cellular
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            cancer cells augments the effectiveness of standard cancer   responsiveness, adding to the uncertainty. Even within
            therapies. ES can also positively influence the tumor   the same cell type, variability in samples can complicate
            microenvironment by improving blood flow to tumor sites,   efforts to standardize ES procedures. This inconsistency
            enhancing the transport of oxygen-rich blood and other   makes it difficult to compare results across studies and
            therapeutic agents required for effective cancer treatment.    reduces the reproducibility of experiments. 9
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            In addition, transcutaneous electrical nerve stimulation   Another key challenge lies in the complexity of
            has been used to manage cancer-related pain and enhance   treatment parameters. The effectiveness of E S depends
            the quality of life of cancer patients undergoing intensive   on four parameters: voltage,  frequency, pulse duration,
            treatment regimes.  These promising results indicate that   and waveform. However, there is no universally optimal
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            ES could serve as a valuable adjunct in comprehensive   combination of these parameters. For example, extremely
            cancer therapy strategies.                         low-frequency electrical fields in our natural environment

              BMT is a relatively novel use of ES, which has shown   can promote cell division in specific cell types, while
            potential in treating lymphedema, a condition in which an   high-frequency  ES  may  be  more  effective  in  guiding
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            abnormal buildup of lymphatic fluid in the limbs causes   differentiation or improving cell functions.  Despite
            pain, swelling, and limitation of movement. BMT is based   the  growing  body  of  evidence,  identifying  a  universally
            on the application of low-intensity ES to the affected area,   applicable stimulation regimen remains elusive, which
            aiming to enhance the lymphatic system’s function by   complicates the development of standardized clinical
            stimulating muscle contractions and activating lymphatic   protocols. In addition, non-optimal electrical factors
            capillary beds.  The process promotes lymphatic stability   such as oxidative stress, apoptosis, or inflammation, as
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            and accelerates  the  removal  of excess  fluid from  the   described by Meng et al.,  can have a detrimental effect
            tissues, thereby reducing swelling and improving mobility.   on the cellular level. This variability in cellular responses
            Research has found that BMT can greatly enhance edema   reinforces the notion that ES, while promising, requires
            management compared to manual lymphatic drainage and   meticulous parameter tuning in clinical settings, where
            compressions.  Compared to conventional approaches,   precise outcomes are critical to patient safety and
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            BMT is less labor-intensive and offers more sustained   therapeutic success.
            control of lymphedema. Its adaptability for home-based   Furthermore,  the  following  technical  difficulties  are
            care provides patients with a convenient therapy that   observed as risks associated with ES and possible implications
            reduces  reliance  on manual  procedures.   Furthermore,   of its future use. While the short-term benefits of ES, such
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            Volume 4 Issue 3 (2025)                         29                              doi: 10.36922/gtm.7774
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