Cancer Awareness
What is Cancer?
Human body is made up of different types of cells, in healthy condition cells grow, divide at controlled rate, become mature and then replaced by body eventually. However, in case of Cancer, body cells mutate and grow at abnormal rate. These abnormal cells eventually form a mass called lump or tumor. Cancerous cells can spread to nearby tissues and can travel to distant places in the body to form new tumors.
There are two types of tumors
- Benign Tumor – noncancerous, do not spread (remain local)
- Malignant Tumor – cancerous, spreads to other parts of body
Cancer typically has four stages
Stage 0: Cancer is found in the place it started and not yet spread to nearby tissues.
Stage I: Cancer is found and not yet grown deeply into nearby tissues.
Stages II and III: These are larger tumors which have grown more deeply into nearby tissues and nearby lymph nodes
Stage IV: Cancer that has spread to other organs or parts of the body. This stage of cancer is called metastatic or advanced cancer state.
Types of Cancer
Till date 100+ types of cancers are known. The “organs or tissues where the cancer originates” determines the “Type of Cancer”. Cancer can also be named after the “type of cell” that formed it.
Broadly depending upon the origin, they are referred as
- Carcinoma
- Sarcoma
- Leukemia
- Melanoma
- Brain and Spinal Cord Tumors
- Lymphoma
- Multiple Myeloma
- Other Types of Tumors
Read more info on
Common Cancer Types – National Cancer Institute
A to Z List of Cancer Types – National Cancer Institute
Krebs – Cancer sites (krebsdaten.de)
Symptoms of Cancer
Typically, cancer does not cause pain in early stages. However, the signs and symptoms of cancer depends on following
- Type of cancer
- Location of cancer
- Size of tumor
- Degree of organs affected nearby
Below are some typical signs and symptoms of cancer,
- Unexplained weight loss
- Fever
- Fatigue
- Pain
- Skin changes
- change in a wart or mole
- Persistent cough or hoarseness
- Trouble urinating
- Pain when urinating
- Blood-stained urine
- Blood-stained stools
- Jaundice e.g., pancreatic cancer
- Skin that is itchy, red, scaly, dimpled, or puckered
- Bowel habit or bladder function changes
- Unhealed sores
- Unusual bleeding or discharge
- A thickening or lump in a part of the body, such as a breast
- Indigestion or trouble swallowing
- Nausea and vomiting
- Appetite changes
- Fever or night sweats
- A white or red patch on the tongue or in your mouth
- Bleeding, pain, or numbness in the lip or mouth
- Headaches, Seizures, Vision changes, Hearing changes- neurological conditions
- and many more
Diagnostics
Types of screening tests vary according to cancer type and age group of patient. Typically carried diagnostic tests in cancer field can be found on below links
Types of Cancer | Cancer.Net (Tests according to cancer type)
How Cancer Is Diagnosed – National Cancer Institute
Tests to Find and Diagnose Cancer
Global Cancer Statistics
Below are some important links to refer global Cancer data spread.
WHO-CancerReport-2020-Global Profile (paho.org)
Cancer statistics, 2020 – Siegel – 2020 – CA: A Cancer Journal for Clinicians – Wiley Online Library
Treatment Options
Many treatment options are available and are very well-tolerated. Practitioners generally apply single or combination mode of treatment based on following factors
- Type of cancer
- Stage of cancer
- Location of cancer
- Tumor size
- Treatment history
- Health status of patient
- Presence of other diseases e.g. diabetes, heart issues
Chemotherapy:
This is commonly used therapy. This therapy uses drugs to destroy cancer cells. Chemotherapy is typically applied to treat tumor and to reduce adjacent cancer symptoms. Chemotherapy can be given via oral, intravenous, intramuscular, intrathecal, intraperitoneal, intraarterial or via topical route. Depending upon the disease condition, type of drug, type of combination drugs and doses are selected (1st, 2nd and 3rd line chemotherapy).
Radiation Therapy
Radiation therapy uses radiation to kill and shrink tumors. Radiation therapy is generally combined with other treatment options. Types of radiation therapy include
-External beam radiation
-Internal beam radiation therapy
Immunotherapy
This therapy uses hormones and other drugs which work with immune system to treat cancer. Immunotherapy helps to boost performance of immune system to fight cancer. Many types of immunotherapy options are available like Immune checkpoint inhibitors, T-cell transfer therapy, Monoclonal antibodies, Treatment vaccines (to boost immune system’s response to cancer cells) and Immune system modulators. Immunotherapy is typically given via intravenous (IV), oral, topical and intravesical route.
Surgery
In this procedure surgeon removes cancer from body mechanically. This procedure is spread from few to several hours and needs hospital stay. Depending upon disease state, surgery could be open body or minimally invasive. Typically, surgical procedure is combined with many other treatment options.
Hormone Therapy
This therapy uses hormones to slows or arrest the growth of cancer. Hormone therapy is most often combined with other type of cancer treatments. It is given via oral and injection. Typically, it is used to treat breast and prostate cancers. Hormone therapy is based on two mechanisms
-Therapy that blocks the body’s ability to produce hormones
-Therapy that interferes with body hormone performance
Photodynamic Therapy (PDT)
This therapy uses a drug which is activated by light, called a photosensitizer or photosensitizing agent, to kill cancer cells. PDT is often used as a locally to treat specific part of body.
Stem Cell Transplant
This procedure aims to restore blood-forming stem cells in patients who already received high doses of chemotherapy or radiation therapy. Stem cells transplant is a complicated and costly procedure.
Targeted Therapy
This therapy uses newer drugs that block genes or proteins found in the cancer cells. Mechanism of action typically involves arresting cancer growth, killing cancerous cells, boosting immune response, or block the hormonal supply. Targeted therapies are based on
-small-molecule drugs
-monoclonal antibodies
Aerosolization Therapy
Pressurized intraperitoneal aerosol chemotherapy (PIPAC) is an innovative approach used by surgeons to deliver chemotherapy into the peritoneal cavity as a pressurized normothermic aerosol. This therapy proved to be safe, cost effective and patient friendly. PIPAC can used alone or in combination either with standard chemotherapy, cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC).
Vaccines:
There is no vaccine for cancer. But there are vaccines for some viruses that are known to cause liver, cervical, anal, throat, and penile cancers, e.g. human papillomavirus (HPV) and hepatitis B. These vaccines protects against the virus not from cancer.
Ongoing Clinical Trials
Many new drugs, targeted therapies, surgical procedures, hormonal therapies, aerosolization therapies and combination of them is being tested in several clinical trials conducted globally. On below sites you can find recent developments in the field.
Find NCI-Supported Clinical Trials – National Cancer Institute
Clinical Research Trials | CenterWatch
EmergingMed Clinical Trial Navigation Service
Clinical Trials register – Search for cancer
Looking For Help – Lazarex Cancer Foundation
Important Video Links
Some youtube links to guide you on cancer therapies
Animated Introduction to Cancer Biology (Full Documentary) – YouTube
General Principles of Cancer Treatment – YouTube
Tumour immunology and immunotherapy – YouTube
Cancer Treatment: IMRT (Radiation Therapy) – YouTube
Cancer Treatment: Chemotherapy – YouTube
HIPEC Procedure – Hyperthermic Intraperitoneal Chemotherapy – YouTube
Cytoreductive surgery and HIPEC for peritoneal carcinomatosis – YouTube
PIPAC Pressurized IntraPeritoneal Aerosol Chemotherapy Capnomed – YouTube
PIPAC: what is it? How and why it is done? – by Dr. Praveen Kammar – YouTube
Join the fight to save lives from cancer this Christmas – YouTube
Success Stories
Stories around the world
10 Powerful Survivor Stories From 2016 (cancer.org) (All therapies)
Ovarian cancer patient thankful for immunotherapy clinical trial | MD Anderson Cancer Center (immunotherapy)
Real life stories | Prostate Cancer UK (hormone therapy)
From tonsil cancer survivor to HPV vaccine advocate | MD Anderson Cancer Center (HPV vaccine)
Cancer Stories About Radiation Therapy | Cancer Council NSW (radiation)
First US clinical trial testing efficacy of d | EurekAlert!
Adult Stem Cell Transplant Success Story | Blood Cancer (stemcellresearchfacts.org) (stem cell transplant)
Unique surgery brings hope to cancer patients (dnaindia.com)
German Innovation Award
Dr. Ranjita Shegokar, CSO was honored with a German Innovation…
ACES Award
“Revolutionizing cancer treatment” German medical device firm races to provide alternative treatments…
AARYA Award
Hon’ble Ministers of State Shri Ashok Chandra Panda, Science &…