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Understanding Cancer Basics

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0% found this document useful (0 votes)
45 views9 pages

Understanding Cancer Basics

Uploaded by

29t4bx6bjz
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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CANCER

-
-

Etymocoay

Hippocrates was the pint person to me the word cancer


.

Kankinos & Kankinome -


Grah words - > tumors

2 worldwide
Cancer is the came
of death
.

Lung ,
lives , stomach-most common caneus

lungs breast -

I most common

&NCER-Lange group of disease that stent almost


can
any organ
or turns
thin
of the
body when abnormal cells
grow uncontrollably ,beyond
go
und boundaries to imad
adjoining parts of the
body and/or speal
to other
organs
-

process is called
the latter
metastasizing and is a

major cause of
death
from cancu

Uncontrolled alls Tumor


growth of in Turmer -

1
BENIGN MALIGNANT

BRAINGS -
C
CANCERS
TRADIRONAL -CARCINOMA
CLASSIFICATION - SARCOMA
OF CANCER -
LEUKEMIA
I
LYMPHOMAS
CARCIWOMA-Aried from epithelial
alls
Most common
-Most lokly tobe exposed to
-

car-Whyan aam
80%
&
-

o flia

carcinoma [Skin Cancer)


SSquamous all priferation
So
all
Types -
Adenocarcinoma
(Glandular Time (Bet Pear Uterus s Intenti Sch , .

Lunge)
Transitional all Carcinomar
-
, , ,
F

& Basal (Urinary Bladder Ureter Urethre Crater Pelvir)


cell carcinoma
,
, ,

(skin Canen)

(Bone Cancn)

&
Bowe Sarcoma CHONDROSARCOMA

Types of - RMABDOMYOSARCOMA

SARCOMA
-
Soft Tissue Sarcoma
(Contage Skeletal
I ,

ANGIOSARCOMA Blood Smooth muscle Ador


-
Vend) ,

Time)
LYPOSARCOMA- Adipose Time I LEIOMYOSARCOMA

LEEEMIA Canens of Blood Cells


-

LYMPHOMAS Non-Hujkin Lymphome


3 Lymphala
-

Cancers

MYECOMAS Multiple
Myeloma
-

BRAINSS C
Glyoma
. -
EMocoay of CARCINOGENESIS

CANCER CAUSING FACTORS

ShiponisFactors blastoma
Montages
Children RetinolSee
Age => + 50 yes E
~Breast Cancer
Ovarian Cancer
Physical & Radiation
Enagy
Mendity Chemical
carcinogers
-

a
Li-Frame
7APApa
-Syndrome
Environmental Pactors
-

Biological Carcinogens
if Ligan Smoking -
Aromatic hydrocarbons ,
nicotine , Carbon monoxide , Nitrogen drovde ,
Glutathions
Causes
S-transfer
cancer

In India of Grab
Tobacco chewing 20 % cane
-

Alcohol consumption
Dietay-Afiatosin/Liver & Hepatic Cance

Occupational
Therapeutic drugs

ANTI CANCER SUBSTANCES


Genual Substances Beta carotene Vitamin - C, A
Anticoncinogenic E
Lycopene
-

, .
,

Quercetin inhibite
>

Rosi
-
Anticancer prorate
-

as
Substances
scavenger
a

(Antioxidants) Clarcinogens) anticarcinogenic >


-

Singin inhibits
Pancratic cancer
16thMay ,
21 Dr Gamesi
-

Mecular Biology o C
Major features of cancer all

-Self sufficiency in growth Signating


Evasion of
growthiupression
-

Activation of invasion and metastasis


himitten replicative growth potential
-

Resistance to apoptos
-

rsel
Induction of Blood .
growth
Biochemical & Genetic changes that occur in human cancer .
cells

-
Mutations
Abnormal cell
cycle
-

chromosomal abnormalities
-

Inactivation of tumo suppor genes antiration of oncogenes


.
Chomatin
epigenetic changes
.
-

gene transcription
Alterations in
of mRNAs
&NC RWAs
-

Phenotypic change towards stor cell projects


-
Inward Homean
activity
.
-

Re-appearance of
extain fetal antigene
.

Appearance of abnormal chairs in


glycoproteins and
glycolifide
-

sugar
-

Deceased adherior vie


effects on CAMs
.

-Increased metastisize.
propensity to
-

Release of exosome
.

biomarker

angiogenes factors
-

that at the ECM


.
enzyme
on

Alterations of Metabolism
CANCER CRITICAL GENES

Onco GENES Tumon Suppressor Genes


↓ ↓

Gain of Function Mulation Loss of Function Mutation

PROTO ONCOGENE - >


ANCOGENE
& Increased
GROWTH >
-

CANCER
Tumor
SUPRESSOR >
-

INALTUATION
>
- RATE

GENE

ProxoOncogene ?

Regulate (a) produces proteins that regulates normal all


growth
and
development .

Oncogenes
-
- can be
defined as an altered
gene
whos
product acts

dominantly to accelerate all


growth (a) all division

>
-

Omogans an
generated by "activation" of normal cellular
proto-oncogenes
,
that is ,
gene encoding growth-stimulating protein
.
S
Example of ways by which oncoputeins work

Growth
Factor
For e
Grout
O
- >
-

E-G-protein


signal Transduce

Tumor
Sufrenor Gene
Inatuated by mutations and deletions resulting in

II
-

the loss
of function of the
protein and in unregulated all growth

Gate
Caretaker
Keeper

1) Gatekeeper I control all proliferations include mainly genes


that actto

regulate all cycle & apoptosis.


2) Caretaker Products
genet ore concured with
framing the
integrity of the
genous
316

Tumor MARKERs

Biochemical tut often helpful


one in the
management of
patient withcer
-

abnormal
-

Many cancers an anociated with production of enzymes potems homore .


,

that can be meanned in flasma or servin


.

-The humor marke must ideally the population detect


be unful for screening to

cancers
.

- In practin however this has not been As such the tumor marke
totally . , support
diagnos of cance being unful for monitoring
the besides the to
, response
therapy & for the early detection for recurrence
.

Ext Onco-Fortal antigens :


-

Carcinoembyogenic antigens-Cancer of Colon Stomach Lung


-

, ,
Pancreas Breast
x-feto proteins-Cana of do testis
,

cells
.

-
lives & Germ

-
Cancer
antigen 125 (CA-125) -
Ovarian cancer

Hormones
HCG -
Human Chorionic Conadotropin-Choriocarcinoma
Calcitonin -
Concinome
of medullary thyroid
Catecholamin & metabolites (Mainly Vanilly) -

Neuroblastoma ,
pheochromocytoma
Enzymes
Prostate acid thosphotos -
Prostate care

Nemon specific enclass - Nemoblastime


Alkaline Phosphatar -
Alp
Specific Proteins
Benzedome plus
Prostat
specific antigen-Immunoglobuline for multifhmyeloma .
Significant elevation of some of the biomarkers seen in

variety of non-cancerous conditions


.

Ex : PSAM in Prostitis .

Benign prostitic Hyperplasia


People with relative chalitis & serves
THERAPEUTICS
10 Cancer
Therapy include
-Classical chemotherapeutic drugs alkalizing agents ,platinum
complexes anti-metabolites
, ,
mitotic spindle poisons among otherclaws of
chemical compounds

Methotrexate
6-mercapto prine
-

6-thioguanine
-

Mitomycin
-

Artinomycin-D-Blocks the transmission


-

-
Vinblastine & Vincristine
-

Cisplastin
-

Imatinik

It is
important to appreciate the just like other therapeutics
-

Sometimes there seven . Resistence develop after variable


,
are to
many drugs can

seclected in
friod of time through therapy drive are
genetic changes
.
Humor celly

recenthropy - Immunotherap

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