Prediction of metastatic breast cancer in non-sentinel lymph nodes based on metalloprotease-1 expression by the sentinel lymph node

ABSTRACT Objective: to verify the agreement rate in the identification of sentinel lymph node using an autologous marker rich in hemosiderin and 99 Technetium (Tc99) in patients with locally advanced breast cancer. Methods: clinical trial phase 1, prospective, non-randomized, of 18 patients with breast cancer and clinically negative axilla stages T2=4cm, T3 and T4. Patients were submitted to sub-areolar injection of hemosiderin 48 hours prior to sentinel biopsy surgery, and the identification rate was compared at intraoperative period to the gold standard marker Tc99. Agreement between methods was determined by Kappa index. Results: identification rate of sentinel lymph node was 88.9%, with a medium of two sentinel lymph nodes per patients. The study identified sentinel lymph nodes stained by hemosiderin in 83.3% patients (n=15), and, compared to Tc99 identification, the agreement rate was 94.4%. Conclusion: autologous marker rich in hemosiderin was effective to identify sentinel lymph nodes in locally advanced breast cancer patients.

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Visualisation of Sentinel Lymph Node with Indium-Based near Infrared Emitting Quantum Dots in a Murine Metastatic Breast Cancer Model

PLoS ONE ◽

10.1371/journal.pone.0044433 ◽

2012 ◽

Vol 7 (8) ◽

pp. e44433 ◽

Cited By ~ 34

Author(s):

Marion Helle ◽

Elsa Cassette ◽

Lina Bezdetnaya ◽

Thomas Pons ◽

Agnès Leroux ◽

...

Keyword(s):

Breast Cancer ◽

Quantum Dots ◽

Metastatic Breast Cancer ◽

Lymph Node ◽

Sentinel Lymph Node ◽

Near Infrared ◽

Metastatic Breast ◽

Cancer Model ◽

Breast Cancer Model

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COL16A1 is differentially expressed in lymph node metastasis in human breast cancer.

10.31219/osf.io/vczaw ◽

2021 ◽

Author(s):

Shahan Mamoor

Keyword(s):

Breast Cancer ◽

Metastatic Breast Cancer ◽

Lymph Node ◽

Lymph Nodes ◽

Lymph Node Metastases ◽

Metastatic Breast ◽

Lymphoid Organ ◽

Primary Tumors ◽

Node Metastases ◽

The Brain

Metastasis to the brain is a clinical problem in patients with breast cancer (1-3). Between the breast and the brain reside the secondary lymphoid organ, the lymph nodes. We mined published microarray data (4, 5) to compare primary and metastatic tumor transcriptomes for the discovery of genes associated with metastasis to the lymph nodes in humans with metastatic breast cancer. We found that collagen type XVI alpha 1 chain, COL16A1, was among the genes whose expression was most different in the lymph node metastases of patients with metastatic breast cancer as compared to primary tumors of the breast. COL16A1 mRNA was present at decreased quantities in lymph node metastases as compared to primary tumors of the breast. Importantly, expression of COL16A1 in primary tumors of the breast was correlated with patient overall survival, in lymph node negative patients but not in lymph node positive patients. Modulation of COL16A1 expression may be relevant to the biology by which tumor cells metastasize from the breast to the lymph nodes and the brain in humans with metastatic breast cancer.

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COL6A1 is differentially expressed in lymph node metastasis in human breast cancer.

10.31219/osf.io/krvcj ◽

2021 ◽

Author(s):

Shahan Mamoor

Keyword(s):

Breast Cancer ◽

Metastatic Breast Cancer ◽

Lymph Node ◽

Lymph Nodes ◽

Lymph Node Metastases ◽

Metastatic Breast ◽

Lymphoid Organ ◽

Primary Tumors ◽

Node Metastases ◽

The Brain

Metastasis to the brain is a clinical problem in patients with breast cancer (1-3). Between the breast and the brain reside the secondary lymphoid organ, the lymph nodes. We mined published microarray data (4, 5) to compare primary and metastatic tumor transcriptomes for the discovery of genes associated with metastasis to the lymph nodes in humans with metastatic breast cancer. We found that collagen type VI alpha 1 chain, COL6A1, was among the genes whose expression was most different in the lymph node metastases of patients with metastatic breast cancer as compared to primary tumors of the breast. COL6A1 mRNA was present at decreased quantities in lymph node metastases as compared to primary tumors of the breast. Importantly, expression of COL6A1 in primary tumors of the breast was correlated with patient post-progression survival, in lymph node negative patients but not in lymph node positive patients. Modulation of COL6A1 expression may be relevant to the biology by which tumor cells metastasize from the breast to the lymph nodes and the brain in humans with metastatic breast cancer.

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TSHZ3 is differentially expressed in lymph node metastasis in human breast cancer.

10.31219/osf.io/kxjqn ◽

2021 ◽

Author(s):

Shahan Mamoor

Keyword(s):

Breast Cancer ◽

Metastatic Breast Cancer ◽

Lymph Node ◽

Lymph Nodes ◽

Lymph Node Metastases ◽

Metastatic Breast ◽

Differentially Expressed ◽

Primary Tumors ◽

Node Metastases ◽

The Brain

Metastasis to the brain is a clinical problem in patients with breast cancer (1-3). Between the breast and the brain reside the secondary lymphoid organ, the lymph nodes. We mined published microarray data (4, 5) to compare primary and metastatic tumor transcriptomes for the discovery of genes associated with metastasis to the lymph nodes in humans with metastatic breast cancer. We found that teashirt zinc finger homeobox 3, TSHZ3, was among the genes whose expression was most different in the lymph node metastases of patients with metastatic breast cancer as compared to primary tumors of the breast. Analysis of a separate microarray dataset revealed that TSHZ3 was also differentially expressed in brain metastatic tissues. TSHZ3 mRNA was present at decreased quantities in lymph node metastases as compared to primary tumors of the breast. Importantly, expression of TSHZ3 in primary tumors of the breast was correlated with patient post-progression survival, in lymph node positive patients but not in lymph node negative patients. Modulation of TSHZ3 expression may be relevant to the biology by which tumor cells metastasize from the breast to the lymph nodes and the brain in humans with metastatic breast cancer.

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TMEM98 is differentially expressed in lymph node metastasis in human breast cancer.

10.31219/osf.io/hpjc8 ◽

2021 ◽

Author(s):

Shahan Mamoor

Keyword(s):

Breast Cancer ◽

Metastatic Breast Cancer ◽

Lymph Node ◽

Lymph Nodes ◽

Lymph Node Metastases ◽

Metastatic Breast ◽

Differentially Expressed ◽

Primary Tumors ◽

Node Metastases ◽

The Brain

Metastasis to the brain is a clinical problem in patients with breast cancer (1-3). Between the breast and the brain reside the secondary lymphoid organ, the lymph nodes. We mined published microarray data (4, 5) to compare primary and metastatic tumor transcriptomes for the discovery of genes associated with metastasis to the lymph nodes in humans with metastatic breast cancer. We found that transmembrane protein 98, TMEM98, was among the genes whose expression was most different in the lymph node metastases of patients with metastatic breast cancer as compared to primary tumors of the breast. Analysis of a separate microarray dataset revealed that TMEM98 was also differentially expressed in brain metastatic tissues. TMEM98 mRNA was present at decreased quantities in lymph node metastases as compared to primary tumors of the breast. Importantly, expression of TMEM98 in primary tumors of the breast was correlated with patient overall survival, in lymph node positive patients but not in lymph node negative patients. Modulation of TMEM98 expression may be relevant to the biology by which tumor cells metastasize from the breast to the lymph nodes and the brain in humans with metastatic breast cancer.

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CD69 is differentially expressed in the lymph nodes of patients with metastatic breast cancer.

10.31219/osf.io/utpcq ◽

2021 ◽

Author(s):

Shahan Mamoor

Keyword(s):

Breast Cancer ◽

Metastatic Breast Cancer ◽

Lymph Node ◽

Lymph Nodes ◽

Lymph Node Metastases ◽

Metastatic Breast ◽

Differentially Expressed ◽

Primary Tumors ◽

Node Metastases ◽

The Brain

Metastasis to the brain is a clinical problem in patients with breast cancer (1-3). Between the breast and the brain reside the secondary lymphoid organ, the lymph nodes. We mined published microarray data (4, 5) to compare primary and metastatic tumor transcriptomes for the discovery of genes associated with metastasis to the lymph nodes in humans with metastatic breast cancer. We found that cluster of differentiation 69, CD69, was among the genes whose expression was most different in the lymph node metastases of patients with metastatic breast cancer as compared to primary tumors of the breast. Analysis of a separate microarray dataset revealed that CD69 was also differentially expressed in brain metastatic tissues. CD69 mRNA was present at increased quantities in lymph node metastases as compared to primary tumors of the breast. Importantly, expression of CD69 in primary tumors of the breast was correlated with patient overall survival, more significantly in lymph node negative patients than in lymph node positive patients. Modulation of CD69 expression may be relevant to the biology by which tumor cells metastasize from the breast to the lymph nodes and the brain in humans with metastatic breast cancer.

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