3.3. Using your knowledge of the function of p53, discuss why targeting mutant p53 is promising for cancer therapy. 3.4. Using your knowledge of the function of Rb, discuss the consequences of a dysfunctional Rb protein on cell cycle progression. 4.1. Why is glucose consumed at a high rate in the absence of oxygen and at a low rate in its presence? Explain.

3.3. Using your knowledge of the function of p53, discuss why targeting mutant p53 is promising for cancer therapy. 3.4. Using your knowledge of the function of Rb, discuss the consequences of a dysfunctional Rb protein on cell cycle progression. 4.1. Why is glucose consumed at a high rate in the absence of oxygen and at a low rate in its presence? Explain.

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter10: Cell Reproduction

Section: Chapter Questions

Problem 23RQ: A gene that codes for a positive cell-cycle regulator is called a(n).______ kinase inhibitor tumor...

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(46) A mutated form of protein pox is found in patients with squamous cell carcinoma. In vitro studies show that the normal p5x molecule binds to DNA, and neoplastic cells accumulate in the G0 phase of the cell cycle. In contrast, the mutated form of p5x does not bind to DNA. These finding are most characteristics of which of the following? (A) Growht factor receptors (B) GTP-binding protein (C) Nonreceptor tyrosine kinases (D) Oncogene proteins (E) Tumor suppressor gene proteins
MM, a 54-year old female presents to the Family Medicine Clinic due to a 2-week history of increasing shortness of breath and cough and mild/moderate pain in left side. She was diagnosed with infiltrating intraductal adenocarcinoma of the left breast 5 years ago; at that time, ER(-)/ PR(-); her-2/neu(+); p53(+); staged as having T3N1M0, stage IIIA, high-risk breast cancer. She underwent a modified radical mastectomy with axillary node dissection followed by 6 cycles of CMF chemotherapy. Her mother and sister also had a history of breast cancer. Past Medical History Gravida 4, para 4; menses onset age 13; HTN x 10 years; Type 2 DM x 8 years; breast CA described above; remained disease free until present follow up. Past Surgical History: Left modified radical mastectomy 5 years ago; cholecystectomy 14 years ago. Medications: Glyburide, 5mg PO BID Verapamil SR, 240mg PO daily Furosemide, 40mg PO daily Allergies: NKDA Physical Examination: GEN: Well-developed, obese woman in no…
"Changes to the p53 protein structure can be caused by differences in DNA and can affect protein function." Can you give detailed explanation why this is causation and not correlation? The explanation should be related with mutation, structure changes during protein synthesis, chemical property changes in amino acids, and functions of p53 protein.
SCENARIO: MM, a 54-year old female presents to the Family Medicine Clinic due to a 2-week history of increasing shortness of breath and cough and mild/moderate pain in left side. She was diagnosed with infiltrating intraductal adenocarcinoma of the left breast 5 years ago; at that time, ER(-)/ PR(-); her-2/neu(+); p53(+); staged as having T3N1M0, stage IIIA, high-risk breast cancer. She underwent a modified radical mastectomy with axillary node dissection followed by 6 cycles of CMF chemotherapy. Her mother and sister also had a history of breast cancer. Past Medical History Gravida 4, para 4; menses onset age 13; HTN x 10 years; Type 2 DM x 8 years; breast CA described above; remained disease free until present follow up. Past Surgical History: Left modified radical mastectomy 5 years ago; cholecystectomy 14 years ago. Medications: Glyburide, 5mg PO BID Verapamil SR, 240mg PO daily Furosemide, 40mg PO daily Allergies: NKDA Physical Examination: GEN: Well-developed, obese…
SCENARIO: MM, a 54-year old female presents to the Family Medicine Clinic due to a 2-week history of increasing shortness of breath and cough and mild/moderate pain in left side. She was diagnosed with infiltrating intraductal adenocarcinoma of the left breast 5 years ago; at that time, ER(-)/ PR(-); her-2/neu(+); p53(+); staged as having T3N1M0, stage IIIA, high-risk breast cancer. She underwent a modified radical mastectomy with axillary node dissection followed by 6 cycles of CMF chemotherapy. Her mother and sister also had a history of breast cancer. Past Medical History Gravida 4, para 4; menses onset age 13; HTN x 10 years; Type 2 DM x 8 years; breast CA described above; remained disease free until present follow up. Past Surgical History: Left modified radical mastectomy 5 years ago; cholecystectomy 14 years ago. Medications: Glyburide, 5mg PO BID Verapamil SR, 240mg PO daily Furosemide, 40mg PO daily Allergies: NKDA Physical Examination: GEN: Well-developed, obese…
SCENARIO: MM, a 54-year old female presents to the Family Medicine Clinic due to a 2-week history of increasing shortness of breath and cough and mild/moderate pain in left side. She was diagnosed with infiltrating intraductal adenocarcinoma of the left breast 5 years ago; at that time, ER(-)/ PR(-); her-2/neu(+); p53(+); staged as having T3N1M0, stage IIIA, high-risk breast cancer. She underwent a modified radical mastectomy with axillary node dissection followed by 6 cycles of CMF chemotherapy. Her mother and sister also had a history of breast cancer. Past Medical History Gravida 4, para 4; menses onset age 13; HTN x 10 years; Type 2 DM x 8 years; breast CA described above; remained disease free until present follow up. Past Surgical History: Left modified radical mastectomy 5 years ago; cholecystectomy 14 years ago. Medications: Glyburide, 5mg PO BID Verapamil SR, 240mg PO daily Furosemide, 40mg PO daily Allergies: NKDA Physical Examination: GEN: Well-developed, obese…
SCENARIO: MM, a 54-year old female presents to the Family Medicine Clinic due to a 2-week history of increasing shortness of breath and cough and mild/moderate pain in left side. She was diagnosed with infiltrating intraductal adenocarcinoma of the left breast 5 years ago; at that time, ER(-)/ PR(-); her-2/neu(+); p53(+); staged as having T3N1M0, stage IIIA, high-risk breast cancer. She underwent a modified radical mastectomy with axillary node dissection followed by 6 cycles of CMF chemotherapy. Her mother and sister also had a history of breast cancer. Past Medical History Gravida 4, para 4; menses onset age 13; HTN x 10 years; Type 2 DM x 8 years; breast CA described above; remained disease free until present follow up. Past Surgical History: Left modified radical mastectomy 5 years ago; cholecystectomy 14 years ago. Medications: Glyburide, 5mg PO BID Verapamil SR, 240mg PO daily Furosemide, 40mg PO daily Allergies: NKDA Physical Examination: GEN: Well-developed, obese…
SCENARIO: MM, a 54-year old female presents to the Family Medicine Clinic due to a 2-week history of increasing shortness of breath and cough and mild/moderate pain in left side. She was diagnosed with infiltrating intraductal adenocarcinoma of the left breast 5 years ago; at that time, ER(-)/ PR(-); her-2/neu(+); p53(+); staged as having T3N1M0, stage IIIA, high-risk breast cancer. She underwent a modified radical mastectomy with axillary node dissection followed by 6 cycles of CMF chemotherapy. Her mother and sister also had a history of breast cancer. Past Medical History Gravida 4, para 4; menses onset age 13; HTN x 10 years; Type 2 DM x 8 years; breast CA described above; remained disease free until present follow up. Past Surgical History: Left modified radical mastectomy 5 years ago; cholecystectomy 14 years ago. Medications: Glyburide, 5mg PO BID Verapamil SR, 240mg PO daily Furosemide, 40mg PO daily Allergies: NKDA Physical Examination: GEN: Well-developed, obese…
SCENARIO: MM, a 54-year old female presents to the Family Medicine Clinic due to a 2-week history of increasing shortness of breath and cough and mild/moderate pain in left side. She was diagnosed with infiltrating intraductal adenocarcinoma of the left breast 5 years ago; at that time, ER(-)/ PR(-); her-2/neu(+); p53(+); staged as having T3N1M0, stage IIIA, high-risk breast cancer. She underwent a modified radical mastectomy with axillary node dissection followed by 6 cycles of CMF chemotherapy. Her mother and sister also had a history of breast cancer. Past Medical History Gravida 4, para 4; menses onset age 13; HTN x 10 years; Type 2 DM x 8 years; breast CA described above; remained disease free until present follow up. Past Surgical History: Left modified radical mastectomy 5 years ago; cholecystectomy 14 years ago. Medications: Glyburide, 5mg PO BID Verapamil SR, 240mg PO daily Furosemide, 40mg PO daily Allergies: NKDA Physical Examination: GEN: Well-developed, obese…
Name two ways in which loss of p53 function contributes to a malignant phenotype. Explain how benzo(a) pyrene can cause loss of p53 function. Hint: Loss of p53 function occurs in the majority of human tumors.
Hi, can you elaborate about the following: certain characterize mutations in p63 and compare that to known mutations in p53.
(46) A mutated form of protein p5x is found in patients with squamous cell carcinoma. In vitro studies show that the normal p5x molecule binds to DNA, and neoplastic cells accumulate in the G0 phase of the cell cycle. In contrast, the mutated form of p5x does not bin d to DNA. These finding are most characteristics of which of the following? (A) Growht factor receptors (B) GTP-binding protein (C) Nonreceptor tyrosine kinases (D) Oncogene proteins (E) Tumor suppressor gene proteins