Harsh cancer treatments and Immune oncology

Immune oncology also known as immunotherapy is the study of treatment of cancer by using immune system of body to fight against it. It is a type of therapy designed to encourage the body’s natural defense to altercate cancer. Substances which are either produced by body or in laboratory are used to boost, or regain body’s immunity. It is not exactly understood how this therapy works, it may work by accelerating immune system’s effectiveness at removing cancer cells, it may halt them from reaching other body parts, or it reduces the speed of growth of cancer cells.

www.gapsos.com

This type of treatment seems too good to be true, but is logical and based on simple concept, whereas, treatment like chemotherapy which is widely used to kill this disease but it can only work by hurting the body. To understand immunotherapy better lets discuss monoclonal antibodies which is a type of this therapy.

Monoclonal antibodies

Body’s immune system produces antibodies to fight against antigens which are foreign harmful substances. But cancer develops, because body’s immune system cannot identify the cancer cells as foreign element and does not destroy it. Monoclonal antibodies which are artificial antibodies are given to patients and act like antibodies naturally produced by immune system of patients body. These artificial antibodies given intravenously work by attaching themselves to cancer cells and target specific proteins which support the increase of cancer cells.

Getting attached to these cells they are supposed to accomplish some tasks. As the immune system is unable to detect harmful cancer cells usually and monoclonal antibodies tag them to specific parts of cancer cells which are not present in the healthy cells of a body and help defense system to destroy them.

Cancer cells grow faster than normal cells because they can make copies of the chemical found in the body called growth factor receptors and multiply themselves by sending signals to other cells. But monoclonal antibodies prevent these receptors to multiply the cells and not send more signals.

Also when radioactive molecules are attached to monoclonal antibodies, they directly deliver radiation to cancer cells and hence very low dose of radiation is used and helps healthy cells to remain unaffected which is another benefit of this treatment over chemotherapy which uses very large amount of radiation to kill cancer and kills several healthy cells also.

Although this therapy is new and still has to be worked upon various factors to be recognized and used worldwide, but it is becoming hope for cancer patients which have to undergo painful cancer treatments.

Are you a sufferer of it? Have a look and decide.

There are equivalent numbers of emotional symptoms associated with cancer, as there are the physical symptoms. Due to the availability of a number of cancer groups worldwide, a lot of awareness has spread among the people, regarding the physical symptoms of cancer. It is all because of their great work. However, the impact of the cancer and the associated treatment on the emotional aspects is mostly ignored and rarely addressed. When a cancer patient undergoes treatment, they should always tell others about their feelings, especially to their near ones. One should not feel shy. The feelings may be regarding the loss of interest of the person in the daily routine works, which usually they could have enjoyed, feeling scared, no knowledge about how to take the best care of oneself, or being afraid of, what future has in stock for us. One worse thing is that the treatment itself makes you sick. So, you need to switch to the better treatment options, like immunotherapy. Antibody-drug conjugate is the new treatment approach that is being accepted widely.

www.gapsos.com

With cancer, comes a lot of sorrow and grief – grief of the loss of the life that one could have enjoyed or hoped for, loss of the lovely relationships, job or a person’s place in the society, or at large, a community. The biggest loss is the loss of self confidence, which makes everything else, more difficult. For a woman, the biggest grief is not to be able to have their own children, not to have a family of their own, or getting love from their partners.

Due to fear, anxiety and embarrassment due to changes in the body caused due to the treatment, the emotional outburst is quite real and it can heavily alter the ability of the patient to fight and endure through the difficult phase of life. This is known as emotional trauma.

So, it is really important to take a good care of oneself along with talking about the cancer- be it with the near ones or in the support groups. Taking correct decision about treatment options can help to mitigate the anxiety, up to a certain level. The field of immune-oncology has proven to be successful to help the cancer patients to get relief from these adverse effects of conventional treatment. So, one just need to open their heart and mind to fight this deadly disease.

Pay us a visit on www.gapsos.com to get more information about our effective and quality services.

Frequently Asked Questions about the Main Functions of Antibodies & How the Work in the Prenatal Stages in the Science of Immunotherapy.

If you want to understand the basic functions of antibodies and how they work and thus used a lot in the field of antibody immunotherapy, then you’ll want to read this Q&A blogpost about its functions and how it works in the prenatal and neonatal stages of human life.

www.gapsos.com

So what is antibody immune-oncology again?

If you can’t find a way to differentiate the host’s cells from the pathogen or foreign body, then you won’t be able to eradicate it, that’s the way the antibodies work, they detect antigen proteins that aren’t natural within the body and either bind to it and attack these cells or inform the immunity to act on its part.

And how do these antibodies function precisely?

Mainly antibodies can be useful in either secreted soluble form where it’s active in finding antigens or in the form of membranes where it transforms to memory cells that can help the immune system in finding a pathogen antigen that it has detected before, more like the different between new detectives and experienced detectives.

And from where are these antibodies produced?

When the B cells are activated they differentiate into plasma cells, then these plasma cells secrete these antibodies or they differentiate into memory cells that we’ve mentioned, that make the immune response to pathogens fast.

Could you tell you more about how a baby is protected from pathogens when he’s still inside his mother and the antibodies role in that?

Mainly this happens through a phenomenon that is called passive immunization that is provided from the mother and is transferred to the fetus in the form of antibodies in its bloodstream and thus based on that they’re considered a part of the humoral immune system.

While when it comes to the endogenous production of antibodies within the fetus, it varies depending on the different types of antibodies.

And what produces these circulating antibodies?

The production of these antibodies is resulted from clonal B cells that specifically respond to a single type of antigen for example a virus capsid protein fragment.

And can you state how these antibodies contribute to the immunity of the host?

Sure it can contribute in three ways: preventing the entrance of pathogens and their damaging effects, stimulation of immune cells that remove or eat the pathogens and lead to the triggering of pathogenic cells destruction through the immunity.

And thus this wraps up our quick Q&A session on antibody functions and its connection to immunotherapy.

Get more information about antibodies, visit www.gapsos.com.

What is Dendritic cell based Immunotherapy and T cell Adoptive Transfer therapy.

In this blog we are going to serve the details of dendritic cell based Antibody Drug Conjugate and Adoptive T cell transfer therapy.

Regarding dendritic cell based therapy; one must know that dendritic cells have the ability to be stimulated to produce a cytotoxic response towards a certain antigen.

Mainly for this to happen, dendritic cells which are a type of cells that present antigens, are collected from a patient. Then these cells are either transfected with a unit of a virus or are pulsed with an antigen. When the sample is reintroduced into the patient, as a result of the activation of these cells, they present the tumor antigen into the lymphocyte effector, which is made of CD4, CD8, T Cells, and B cells.

www.gapsos.com

This leads to an initiation of a cytotoxic response to the cells that are expressing the tumor antigen. An example of this approach is Sipuleucel T which is used mainly to treat patients with metastatic prostate cancer (HRPC).

On the other hand, the Adoptive T cell transfer, is mainly the transfer of T cells to produce a cytotoxic effect to attack cancerous cells, naturally these types of cells are reactive to cancerous cells. To introduce them to patients, they are generated in vitro and then re-introduced to the patient.

An example of this was shown in a study where there is introduction of lymphocytes that were autologous and tumor penetrating as an effective treatment for metastatic melanoma. In accordance to this procedure, the following must occur:

First the T cells that are inside the tumor within the patient must be extracted. Then these T cells are trained to battle the tumor cells, usually these are referred to Tumor infiltrating lymphocytes (TIL).

Then they are grown in vitro using high concentration. Of allo-reactive feeder cells, IL2, & anti CD3. Then these T cells are transferred back and introduced into the patient with the administration of IL2 exogenously to further increase noticeably their anti-effect on cancer. This leads to about a 51 % objective response rate, and in some cases the tumors were undetectable in size.

Thus, in this way it has been introduced the details of dendritic cell based therapy and adoptive T cell transfer and it’s used for treatment.

Global Allied Pharmaceuticals is providing immunotherapy and immune-oncology services since more than 14 years. Contact us at www.gapsos.com.

Connection between immune system and Immune based therapy or biological therapy

The ultimate cancer immunotherapy agent should be capable to differentiate between cancer and normal cells like specificity, be effective sufficient to kill small or large numbers of tumor cells like sensitivity, and lastly be competent to prevent recurrence of the tumor like durability. Currently, tumor immunology and immune based therapy is one of the most exciting and rapidly growing fields. 

The immune system is generally divided into two primary components such as the innate immune response or system, and the extremely precise but more gradually developing adaptive or acquired immune response or system. Innate immunity is rapidly acting but typically not very specific and includes physicochemical barriers (eg, skin and mucosa), blood proteins such as complement, phagocytic cells (such as neutrophils, macrophages, dendritic cells, and natural killer cells), and cytokines, which synchronize and regulate the cells involved in innate immunity. Adaptive immunity is thought of as the acquired arm of immunity, which allows for exquisite specificity, an ability to remember the previous existence of the pathogen and differentiate self from non-self and, significantly, the ability to respond more vigorously on repeat exposure to the pathogen.

The thought that the immune system may actively prevent the development of neoplasia is termed as cancer immunosurveillance. There are several nonspecific tumor immune based therapy approaches ranging from biological response modifiers (BRM) to recombinant cytokines.

 

www.gapsos.com

Biological response modifiers are molecules that can modify the biological response of cells to changes in its external environment, which in the perspective of cancer immune based therapy, might easily extent specific and non specific immune based therapies.

A number of investigations using recombinant cytokines, growth factors, or hormones in various fashions for human and veterinary cancer patients have been reported up to now. Many have investigated the in vitro and/or in vivo effects of the soluble cytokine (for example interferons, IL 2, IL 12, IL 15 and liposome encapsulation of the cytokine (for example liposomal IL 2) or use a virus, cell, plasmid, liposome DNA complex, or other mechanism to express the cytokine (such as recombinant poxvirus expressing IL 2).

Similar to any type of anticancer treatment, immunotherapy appears to work best in a minimal residual disease setting, signifying its most appropriate use will be in an adjuvant setting with local tumor therapies such as surgery or radiation therapy.

Global Allied Pharmaceuticals (GAP) consist an expert team of oncologists and researchers. To know more information about immunotherapy related services, you can contact on www.gapsos.com.