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Category: tissues

How do we teach the immune system of a cancer patient to attack cancer?

TeachableMedicalNews article 07302021

Teachable moment in classrooms:

  1. cellular basis of life chapter– artificial DNA can direct the cell to make a new type of protein
  2. cellular basis of life chapter – receptor proteins are located in the plasma membrane
  3. tissue chapter –the liquid connective tissue nature of blood allows the separation of blood cell types
  4. immune system chapter – role of T cell in immune defense

The news item:  Recently a news report was published about a cancer patient’s fight for her life:

New treatment option for patients battling aggressive form of blood cancer

People battling relapsed or refractory (R/R) Diffuse Large B-cell Lymphoma, an aggressive blood cancer, experience a challenging treatment journey. But a recently approved CAR T cell therapy gives patients a new option.

 

The article stated that the patient had B cell lymphoma that didn’t respond to chemotherapy, and that she started a new treatment where her T cells were removed from her blood, reprogrammed to attack her cancer, and then returned into her body.  The treatment was described as the CAR T treatment where CAR stood for chimeric antigen receptor.

So, Why Do I Care??   Some leukemia type cancers and lymphoma type cancers do not respond to regular chemotherapy. While the total number of the patients is relatively low (a few thousand), the  new approach (CAR T) to cancer treatment now presents a new option for those patients with cancers resisting regular chemotherapy. Knowing how this type of treatment is created allows us to understand treatment regimens such as Kymriah, Yescarta, and Tecartus. In addition, the CAR T treatment type may inspire more out of the box thinking to defeat cancer.

Plain English, Please!!! First, let’s talk about why would we want to train our immune system. In our body only the cells of the immune system are the only ones that can find and destroy specific targets

Can a self-injected treatment help asthma sufferers?

TeachableMedicalNews article 07262020

Teachable moment in classrooms:

  1. chemical basis of life chapter – protein structure determines biological activity
  2. cellular basis of life chapter – concept of receptor proteins in cell membranes
  3. tissue chapter – locations of smooth muscle
  4. immune system chapter – cytokines as stimulators of immune functions
  5. cardiovascular system chapter – white blood cell types in circulating blood
  6. respiratory system chapter – dilation and constriction of bronchioles

The news item:  Recently a new form of asthma treatment was in the news:

‘Life-changing’ asthma injection will be offered to patients

Around 100,000 patients in the UK whose symptoms are too bad for traditional inhalers or steroids will be eligible for treatment with benralizumab.

The article mentions the disorder eosinophilic asthma, that it is caused by too many white blood cells in the lungs, and that this asthma limits what sufferers may do in their day to day lives.

So, Why Do I Care??  Asthma is a respiratory disorder that afflicts 2.5 million people in the USA. In the age group of 35-50 year olds the eosinophilic asthma is the most frequent. Inhaled pharmaceuticals, common for asthma treatment, come with undesirable side effects after long-term use.  Attacking asthma from a different angle provide a new way to treat patients, and it may help people where inhaled asthma treatments fail.

Plain English, Please!!! First, let’s talk about asthma. While asthma may be started by different conditions, like allergies, cold temperature, the root cause of asthma is always the unwanted restriction of airflow into the lungs.  An important part of our respiratory system is made up of tubes that channel air deep into our lungs, to the air sacks. A set of those tubes, the bronchioles, are 1/20 of an inch in diameter, and they have the ability to narrow and restrict airflow, because the bronchioles have smooth muscle in their walls. When those smooth muscles contract, the narrowed bronchiole restricts airflow to the air sacks.

Can anyone be born without skin?

TeachableMedicalNews article 03132020

Teachable moment in classrooms:

  1. chemical basis of life chapter – concept of one gene, one protein
  2. cellular basis of life chapter – gene mutation leading to protein  malfunction
  3. tissue chapter – junctional structures, hemidesmosomes
  4. integumentary system chapter – functions of epidermis

The news item:  Recently an article appeared about a newborn who was missing a good part of his skin:

Baby born without skin puzzles doctors, but mom says ‘we have faith, that’s all that matters’

Houston doctors are running tests to diagnose a baby born with most of his skin missing. Mom’s only been able to hold baby twice in three months.

The article mentioned the disorder epidermolysis bullosa, genetic testing for diagnosis, and the low frequency of this disorder.

So, Why Do I Care??  While the combination of the aplasia cutis and

How come flesh eating bacteria are so damaging?

TeachableMedicalNews article 07052019

Teachable moment in classrooms:

  1. tissues chapter – connective tissues as conduits for spreading infection
  2. muscle chapter – fascia as a conduit for spreading infection
  3. immune system chapter – immune defense must work right to defeat bacterial invaders

 

                    How come flesh eating bacteria are so damaging?

The news item:  Several news outlets, including ABC news

https://abcnews.go.com/US/wireStory/family-woman-dies-flesh-eating-disease-florida-64068630

reported during the summer of 2019 on the occurrence and fatal consequences of infection by flesh eating bacteria.

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