Today marks the start of Childhood Cancer Awareness Month.
The cause of childhood cancers is believed to be due to faulty genes in stem cells that give rise to nerves, skin, blood and other body tissues. For some unknown reasons, the faulty genes can sit quiet and show their ‘bad’ character after birth and programme the cells into cancer cells.
So, there is no evidence that links lifestyle or environmental risk factors to the development of childhood cancer, which is opposite to many adult’s cancers.
Every 100th cancer patient is a child. Cancer is the 2nd most common cause of death among children after accidents.
Children are not little adults and so their cancer. Some childhood cancers have a good outlook and successful protocol of treatments. However, some of the cancers do not respond to the known drugs, or if respond cancer cells find the way to develop resistance and come back being more aggressive. Among theme are some forms of brain tumours, neuroblastoma and sarcomas; cancers developing in certain age groups and/or located within certain sites in the body, along with acute myeloid leukaemia (blood cancer). Children with a rare brain cancer – diffuse intrinsic pontine glioma survive less than 1 year from diagnosis. Children with soft tissue tumours have 5-year survival rates ranging from 64% (rhabdomyosarcoma) to 72%(Ewing sarcoma). Less than50% of children with the aggressive form of neuroblastoma will live beyond 5 years with current treatment strategies.
For majority of children who do survive cancer, the battle is never over. Over 60% of long‐term childhood cancer survivors have a chronic illness as a consequence of the treatment; over 25% have a severe or life-threatening illness.
The most common types of childhood cancer are:
Leukaemia and lymphoma (blood cancers)
Brain and other central nervous system tumours
Muscle cancer (rhabdomyosarcoma)
Kidney cancer (Wilms tumour)
Neuroblastoma (tumour of the non-central nervous system)
Bone cancer (osteosarcoma)
Testicular and ovarian tumours (gonadal germ cell tumours)
Appeared in today’s Irish Times. Lovely crafted by Dr. Vanesa Martinez
Although the discovery could be applicable in principle to any a solid tumour, Dr Piskareva’s target is neuroblastoma, a relatively common child cancer which affects a specific type of nerve cells in unborn children. “It’s quite aggressive and unfortunately there are many children who have metastasis when they are diagnosed, and this is the most challenging group to treat.”
Walking in Mainz last week I saw a lovely fountain capturing 3 girls under umbrellas (Drei-Mädchen-Brunnen) at the ball square. This fountain was built between two Catholic girl’s schools symbolising the separate education and happy childhood. It has charmed me and reminded rainy days in Ireland and how this fountain may fit any park or square in Dublin.
My second look at the picture gave me another perspective. This sculpture could illustrate not only happy childhood but also the protection we can give to children with cancer being their umbrellas. As September is childhood cancer awareness month, I am picking this picture to support this call. Raising awareness about childhood cancer we help to make their dreams come true. Dreams for better treatment, better quality of life full of love ahead through better funding of childhood cancer research and access to innovative treatments.
The focus of the scientific program was on “Translating Science into Survival”. Talks covered the challenging areas in cancer immunology and immunotherapy. The full list of topics can be found in the meeting program.
At the moment cancer immunology and immunotherapy is a hot topic in the next generation of anti-cancer therapies. Lots of attention is given to checkpoint immunodrugs as it was proven by the prevalence of talks on this subject in the program. Indeed, this drug has great potential, but at the same time, it is not universal. About 50% of patients do not benefit from it.
What lessons have been learned from the talks:
Checkpoint immunotherapies are the main stream
Not all cancer patients would respond to immunodrug
Genetic landscape of a tumour and/or the patient may contribute to this, thus making beneficial to check genetics for this type of treatment
Immunodrugs work better in combination with conventional therapies such as chemotherapy.
The immune system can be tuned by a drug, but it will switch on compensatory mechanisms to balance the intervention.
This research institute was established in 1904 to support work of Paul Ehrlich, its first director and funded by the private foundation “Chemotherapeutisches Forschungsinstitut Georg-Speyer-Haus”. Paul Erlich is the Father of the chemotherapyconcept originally developed to treat diseases of bacterial origin. He reasoned that there should be a chemical compound that can specifically target bacteria and stop its growth. He developed Salvarsan, the most effective drug for treatment of syphilis until penicillin came onto the market.
Paul Erlich is also known for his contribution to cancer research. He and his colleagues actively experimented on how tumour originates and spread. They also tried to understand how immune system can beat cancer applying vaccination concepts.
The main challenge in treating high-risk neuroblastoma is to stop or control tumour spread and development of resistance to multiple chemotherapeutic drugs. Immunotherapy is one of the recent advances in our understanding how our immune system handles body invaders such as virosis, bacteria and now tumour cells. Immunotherapy holds great promise as a treatment option for neuroblastoma as well as for many adult cancers owing to the specificity of immune effector cells targeted to a tumour. Another advantage is a potential reduction in the systemic side effects observed with other forms of treatment.
Immunotherapeutic approaches for neuroblastoma include the use of chimeric antigen receptor (CAR) T cells against both L1-CAM and ganglioside 2 (GD2) cell surface antigens to promote host antitumor response. Anti-GD2 antibodies bind GD2 and cause cell death by activating both complement-dependent cytotoxicity (CDC) and AB-dependent cellular cytotoxicity (ADCC) from natural-killer cells.
Children with high-risk neuroblastoma is the most challenging group to treat. Current treatment strategy for this group consists of 3 treatment blocks:
induction: chemotherapy and primary tumour resection;
consolidation: high-dose chemotherapy with autologous stem-cell rescue and external-beam radiotherapy [XRT];
post-consolidation: anti–ganglioside 2 immunotherapy with cytokines and cis-retinoic acid.
Up to 50% of children that do respond experience disease recurrence with tumour resistant to multiple drugs and more aggressive behaviour that all too frequently results in death.
For the majority of children who do survive cancer, the battle is never over. Over 60% of long‐term childhood cancer survivors have a chronic illness as a consequence of the treatment; over 25% have a severe or life‐ threatening illness.
Neuroblastoma is a childhood cancer. The word neuroblastoma consists of two words neuro and blastoma.The term neuro refers to nerves, blastoma – to a cancer of immature cells.
It starts in some types of nerve cells during embryo development.transforming immature nerve cells into cancerous cells. This type of cancer occurs most often in infants and young children mostly under the age of 5 years old.
Neuroblastomas behave very differently:
Cells can grow and spread quickly,
Cells can grow slowly
Cells can die for no reason, so a tumour goes away on its own.
The research is a long-term investment. It is always built up on the work of the predecessors. Keep research running is crucial to make the dreams come true. Dreams for better treatment options and quality of life.
Thank you to everyone involved in raising funds for CMRF!