Unlike bacteria or cancer cells, which have many conserved cellular components vulnerable to chemotherapy, viruses are genetically unique pathogens reliant on host cells for replication. Developing broadly effective antiviral chemotherapies is extremely difficult due to these virologic features. Therefore, specific antiviral agents must be designed to inhibit key viral proteins or replication steps, rather than taking a chemotherapy approach.
Viral diseases cannot be cured using chemotherapeutic drugs because these drugs are designed to target and kill rapidly dividing cells, such as cancer cells. However, viruses are not cells themselves, but rather infectious agents that invade and hijack the host cells' machinery to replicate. Since viruses do not have their own cellular machinery, they are not affected by chemotherapeutic drugs that target cellular processes.
Chemotherapeutic drugs typically work by interfering with DNA replication, protein synthesis, or cell division, which are essential processes for rapidly dividing cells. These drugs can effectively kill cancer cells because cancer cells divide rapidly and uncontrollably. However, viruses replicate using the host cell's machinery, and they do not have their own DNA replication or protein synthesis processes. Therefore, chemotherapeutic drugs that target these processes in cells are ineffective against viruses.
To treat viral diseases, antiviral drugs are used instead. Antiviral drugs are specifically designed to target the unique characteristics of viruses, such as their viral enzymes or proteins involved in viral replication. These drugs can inhibit viral replication, prevent the virus from spreading, or boost the immune system's response to the virus. Examples of antiviral drugs include drugs used to treat HIV, influenza, and herpes viruses.
It is important to note that while antiviral drugs can help manage viral infections, they may not completely cure the infection. Viruses can mutate and develop resistance to antiviral drugs, making it challenging to completely eradicate the virus from the body. Additionally, the body's immune system plays a crucial role in fighting viral infections, so supportive care and vaccines are also important in preventing and managing viral diseases.
First to information about this content you mention chemotherapeutic use treatment is depending the case of patient. My point of view is important to analysis the situation why is viral.
Viral diseases cannot be cured using traditional chemotherapeutic drugs primarily because of fundamental differences in the way viruses and bacteria operate, as well as the mechanisms of action of chemotherapeutic drugs.Biological differences: Viruses are intracellular parasites that rely on host cells to replicate. They invade host cells, hijack cellular machinery, and use it to produce more virus particles. In contrast, bacteria are independent organisms that can be targeted by drugs without affecting human cells. Chemotherapeutic drugs, such as antibiotics, are designed to target specific components or processes unique to bacteria, such as cell wall synthesis or protein synthesis. These mechanisms are absent in viruses, making it challenging to develop drugs that specifically target viruses without harming host cells.and Viruses lack cellular structures, such as cell walls or organelles, which are common targets of many chemotherapeutic drugs. Without these structures, viruses have fewer vulnerabilities that can be exploited by drugs.