Pediatric cancer is not a single disease. It includes a broad range of malignancies that can arise in the blood, brain, nervous system, bones, soft tissues, kidneys, and other organs. 

The World Health Organization estimates that approximately 400,000 children and adolescents aged 0–19 develop cancer each year. Survival also varies substantially between countries, with outcomes generally better where comprehensive diagnostic and treatment services are available.

For researchers studying these diseases, access to well-characterized patient-derived specimens can help connect clinical information with molecular and pathological findings. 

At Bay Biosciences, we provide high-quality Pediatric Cancer Samples that can support studies of pediatric tumor biology, biomarkers, disease mechanisms, treatment response, and therapeutic development.

Understanding Pediatric Cancer

The term pediatric cancer generally refers to cancers occurring during childhood. The National Cancer Institute defines pediatric cancer as cancer occurring from birth through 14 years of age, although research and clinical programs may also include adolescents and young adults.

Unlike many adult cancers, pediatric malignancies are often associated with genetic and developmental changes rather than the long-term accumulation of environmental exposures. 

Pediatric cancers fall into two broad groups: hematologic malignancies and solid tumors. 

Hematologic malignancies include leukemias, which affect blood-forming tissues, and lymphomas, which involve lymphatic cells and tissues. Leukemias and brain and central nervous system tumors together account for more than half of childhood cancers. 

Solid tumors can also develop in the kidneys, bones, muscles, peripheral nervous system, and other organs.

This biological diversity is one reason researchers need access to different types of Pediatric Cancer Biospecimens rather than relying on one specimen type.

Symptoms

General signs

Signs of blood and bone marrow cancers (leukemia)

  • Easy bruising or bleeding, including nosebleeds, bleeding gums, or tiny red or purple spots on the skin (petechiae)
  • Bone or joint pain, sometimes causing a limp or refusal to walk
  • Swollen lymph nodes in the neck, armpits, or groin

Signs of brain and nervous system tumors

  • Headaches that are persistent or worse in the morning, often with vomiting
  • Problems with balance, coordination, or walking
  • Changes in vision, such as double vision or a new squint
  • Seizures, or changes in behavior, personality, or school performance
  • Head tilt or, in infants, an enlarging head

A child with one of these symptoms most likely does not have cancer. A child with symptoms that last more than a couple of weeks, keep getting worse, or appear together should be seen by a doctor promptly.

Diagnosis

Diagnosis is usually led by a pediatrician and then handled by a specialized pediatric oncology team.

The process often includes the following steps:

History and physical examination:

The doctor asks about symptoms, how long they have lasted, the child’s growth, past illnesses, and family history of cancer. 

Blood and laboratory tests:

A complete blood count can show abnormal levels of red cells, white cells, or platelets, which can point toward leukemia. Other tests check liver and kidney function and chemical markers. Some tumors release substances that can be measured in blood or urine. For example, neuroblastoma can raise certain urine catecholamine levels.

This testing may include: 

  • X-ray and ultrasound: quick, painless first-line tests.
  • MRI: detailed images of the brain, spinal cord, and soft tissue.
  • CT scan: images of the chest, abdomen, and bones.
  • PET or nuclear medicine scans: used to find the extent of disease and spread.

Biopsy and bone marrow tests:

Most diagnoses must be confirmed by examining cells under a microscope.

Staging: Once cancer is confirmed, doctors determine how far it has spread. This guides the treatment plan. Because childhood cancers are complex, care at a dedicated pediatric cancer center is generally recommended.

Causes of Pediatric Cancer

For most children with cancer, no specific cause is found. 

Cancer begins when DNA changes (mutations) in a cell cause it to grow and divide out of control. 

In children, these changes often arise by chance as cells divide rapidly during growth and development, and not from anything the child or parents did or failed to do.

A small proportion of cases are linked to inherited gene changes passed from a parent that raise the risk of cancer. Estimates commonly place this at roughly 10 percent of childhood cancers. 

Other changes occur before birth during development of the embryo and fetus, which may help explain why some cancers appear in infancy or early childhood.

Treatment of Pediatric Cancer

Treatment depends on the specific cancer, its stage or extent, molecular characteristics, and the child’s overall health. 

Pediatric cancer treatment may involve surgery, chemotherapy, radiation therapy, immunotherapy, targeted therapy, stem cell transplantation, or combinations of these approaches.

Children also require treatment considerations that differ from those of adults. 

Their bodies are still developing, and some cancer treatments can produce effects that become apparent months or years later. 

For this reason, researchers continue to study both treatment effectiveness and long-term survivorship.

Pediatric Tumor Tissue Samples for Research

Pediatric Tumor Tissue Samples can support studies of tumor morphology, molecular characteristics, cellular signaling, and disease progression.

Researchers may examine tumor tissue to identify genetic alterations, characterize protein expression, study the tumor microenvironment, and investigate potential biomarkers. 

Research Applications of Pediatric Cancer Samples

Researchers may use Pediatric Cancer Samples for:

Biomarker Research

Tumor and blood-derived specimens can help researchers identify molecular or cellular characteristics associated with disease presence, progression, prognosis, or treatment response.

Tumor Biology Studies

Pediatric Tumor Samples can be used to investigate pathways involved in tumor initiation, proliferation, invasion, and interactions with surrounding cells.

Drug Discovery and Development

Patient-derived specimens can support preclinical research aimed at evaluating potential therapeutic targets and understanding how pediatric tumors respond to different treatment strategies.

Molecular and Genomic Studies

Fresh-frozen tissue and other appropriately processed biospecimens can provide material for molecular analyses designed to identify genomic alterations and other biological characteristics.

Translational Oncology Research

Combining Pediatric Cancer Tissue Samples with relevant clinical information and blood-derived specimens can help researchers connect laboratory observations with patient characteristics and clinical outcomes.

Frequently Asked Questions

What are Pediatric Cancer Biospecimens?

Pediatric Cancer Biospecimens are biological specimens collected from children with cancer for research or clinical purposes.

Why are Human Tumor Tissue Samples important in pediatric cancer research?

Human Tumor Tissue Samples allow researchers to study tumor characteristics directly in patient-derived material. They can provide information about tumor morphology, molecular alterations, biomarkers, and interactions within the tumor environment.

Can pediatric cancer research use multiple types of biospecimens?

Yes. Researchers may combine tissue with blood-derived specimens such as serum, plasma, or PBMCs to examine different aspects of pediatric cancer biology and treatment response.

Are research samples ethically sourced?

Yes. All biospecimens available on our website are sourced with ethical guidelines in mind. 

Supporting Your Research with Bay Biosciences

At Bay Biosciences, we provide high-quality biospecimens to pharmaceutical companies, biotechnology organizations, academic institutions, and diagnostic developers.

Our comprehensive range of specimens includes:

If you have any questions, concerns, or special requests, please don’t hesitate to contact us.